Tag zfs-0.7.13

META file and changelog updated. Signed-off-by: Tony Hutter <hutter2@llnl.gov>
test-runner: python3 support
2026-05-24 11:18:52 +03:00 · 2019-02-22 09:47:55 -08:00 · 2019-02-22 09:47:34 -08:00 · 2019-02-22 09:47:34 -08:00 · 2019-02-22 09:47:34 -08:00 · 2019-02-22 09:47:34 -08:00
2892 changed files with 70117 additions and 360783 deletions
@@ -1,10 +0,0 @@
 root = true
 [*]
 end_of_line = lf
 insert_final_newline = true
 trim_trailing_whitespace = true
 [*.{c,h}]
 tab_width = 8
 indent_style = tab
@@ -1,12 +1,10 @@
-# Contributing to OpenZFS
+# Contributing to ZFS on Linux
-<p align="center">
+<p align="center"><img src="http://zfsonlinux.org/images/zfs-linux.png"/></p>
  <img alt="OpenZFS Logo"
    src="https://openzfs.github.io/openzfs-docs/_static/img/logo/480px-Open-ZFS-Secondary-Logo-Colour-halfsize.png"/>
 </p>
 *First of all, thank you for taking the time to contribute!*
-By using the following guidelines, you can help us make OpenZFS even better.
+By using the following guidelines, you can help us make ZFS on Linux even
 better.
 ## Table Of Contents
 [What should I know before I get
@@ -29,22 +27,19 @@ started?](#what-should-i-know-before-i-get-started)
  * [Commit Message Formats](#commit-message-formats)
    * [New Changes](#new-changes)
    * [OpenZFS Patch Ports](#openzfs-patch-ports)
    * [Coverity Defect Fixes](#coverity-defect-fixes)
    * [Signed Off By](#signed-off-by)
 Helpful resources
-  * [OpenZFS Documentation](https://openzfs.github.io/openzfs-docs/)
+  * [ZFS on Linux wiki](https://github.com/zfsonlinux/zfs/wiki)
-  * [OpenZFS Developer Resources](http://open-zfs.org/wiki/Developer_resources)
+  * [OpenZFS Documentation](http://open-zfs.org/wiki/Developer_resources)
  * [Git and GitHub for beginners](https://openzfs.github.io/openzfs-docs/Developer%20Resources/Git%20and%20GitHub%20for%20beginners.html)
 ## What should I know before I get started?
 ### Get ZFS
 You can build zfs packages by following [these
-instructions](https://openzfs.github.io/openzfs-docs/Developer%20Resources/Building%20ZFS.html),
+instructions](https://github.com/zfsonlinux/zfs/wiki/Building-ZFS),
 or install stable packages from [your distribution's
-repository](https://openzfs.github.io/openzfs-docs/Getting%20Started/index.html).
+repository](https://github.com/zfsonlinux/zfs/wiki/Getting-Started).
 ### Debug ZFS
 A variety of methods and tools are available to aid ZFS developers.
@@ -53,30 +48,28 @@ configure option should be set. This will enable additional correctness
 checks and all the ASSERTs to help quickly catch potential issues.
 In addition, there are numerous utilities and debugging files which
-provide visibility into the inner workings of ZFS.  The most useful
+provide visibility in to the inner workings of ZFS.  The most useful
-of these tools are discussed in detail on the [Troubleshooting
+of these tools are discussed in detail on the [debugging ZFS wiki
-page](https://openzfs.github.io/openzfs-docs/Basic%20Concepts/Troubleshooting.html).
+page](https://github.com/zfsonlinux/zfs/wiki/Debugging).
 ### Where can I ask for help?
-The [zfs-discuss mailing
+The [mailing list](https://github.com/zfsonlinux/zfs/wiki/Mailing-Lists)
-list](https://openzfs.github.io/openzfs-docs/Project%20and%20Community/Mailing%20Lists.html)
+is the best place to ask for help.
 or IRC are the best places to ask for help. Please do not file
 support requests on the GitHub issue tracker.
 ## How Can I Contribute?
 ### Reporting Bugs
-*Please* contact us via the [zfs-discuss mailing
+*Please* contact us via the [mailing
-list](https://openzfs.github.io/openzfs-docs/Project%20and%20Community/Mailing%20Lists.html)
+list](https://github.com/zfsonlinux/zfs/wiki/Mailing-Lists) if you aren't
-or IRC if you aren't certain that you are experiencing a bug.
+certain that you are experiencing a bug.
 If you run into an issue, please search our [issue
-tracker](https://github.com/openzfs/zfs/issues) *first* to ensure the
+tracker](https://github.com/zfsonlinux/zfs/issues) *first* to ensure the
 issue hasn't been reported before. Open a new issue only if you haven't
 found anything similar to your issue.
 You can open a new issue and search existing issues using the public [issue
-tracker](https://github.com/openzfs/zfs/issues).
+tracker](https://github.com/zfsonlinux/zfs/issues).
 #### When opening a new issue, please include the following information at the top of the issue:
 * What distribution (with version) you are using.
@@ -108,13 +101,13 @@ information like:
 * Stack traces which may be logged to `dmesg`.
 ### Suggesting Enhancements
-OpenZFS is a widely deployed production filesystem which is under active
+ZFS on Linux is a widely deployed production filesystem which is under
-development. The team's primary focus is on fixing known issues, improving
+active development. The team's primary focus is on fixing known issues,
-performance, and adding compelling new features.
+improving performance, and adding compelling new features.
 You can view the list of proposed features
-by filtering the issue tracker by the ["Type: Feature"
+by filtering the issue tracker by the ["Feature"
-label](https://github.com/openzfs/zfs/issues?q=is%3Aopen+is%3Aissue+label%3A%22Type%3A+Feature%22).
+label](https://github.com/zfsonlinux/zfs/issues?q=is%3Aopen+is%3Aissue+label%3AFeature).
 If you have an idea for a feature first check this list. If your idea already
 appears then add a +1 to the top most comment, this helps us gauge interest
 in that feature.
@@ -123,11 +116,8 @@ Otherwise, open a new issue and describe your proposed feature.  Why is this
 feature needed?  What problem does it solve?
 ### Pull Requests
-
+* All pull requests must be based on the current master branch and apply
-#### General
+without conflicts.
 * All pull requests, except backports and releases, must be based on the current master branch 
 and should apply without conflicts.
 * Please attempt to limit pull requests to a single commit which resolves
 one specific issue.
 * Make sure your commit messages are in the correct format. See the
@@ -139,28 +129,16 @@ logically independent patches which build on each other.  This makes large
 changes easier to review and approve which speeds up the merging process.
 * Try to keep pull requests simple. Simple code with comments is much easier
 to review and approve.
 * All proposed changes must be approved by an OpenZFS organization member.
 * If you have an idea you'd like to discuss or which requires additional testing, consider opening it as a draft pull request.
 Once everything is in good shape and the details have been worked out you can remove its draft status.
 Any required reviews can then be finalized and the pull request merged.
 #### Tests and Benchmarks
 * Every pull request will by tested by the buildbot on multiple platforms by running the [zfs-tests.sh and zloop.sh](
 https://openzfs.github.io/openzfs-docs/Developer%20Resources/Building%20ZFS.html#running-zloop-sh-and-zfs-tests-sh) test suites.
 * To verify your changes conform to the [style guidelines](
 https://github.com/openzfs/zfs/blob/master/.github/CONTRIBUTING.md#style-guides
 ), please run `make checkstyle` and resolve any warnings.
 * Static code analysis of each pull request is performed by the buildbot; run `make lint` to check your changes.
 * Test cases should be provided when appropriate.
 This includes making sure new features have adequate code coverage.
 * If your pull request improves performance, please include some benchmarks.
 * The pull request must pass all required [ZFS
 Buildbot](http://build.zfsonlinux.org/) builders before
 being accepted. If you are experiencing intermittent TEST
 builder failures, you may be experiencing a [test suite
-issue](https://github.com/openzfs/zfs/issues?q=is%3Aissue+is%3Aopen+label%3A%22Type%3A+Test+Suite%22).
+issue](https://github.com/zfsonlinux/zfs/issues?q=is%3Aissue+is%3Aopen+label%3A%22Test+Suite%22).
-There are also various [buildbot options](https://openzfs.github.io/openzfs-docs/Developer%20Resources/Buildbot%20Options.html)
+There are also various [buildbot options](https://github.com/zfsonlinux/zfs/wiki/Buildbot-Options)
 to control how changes are tested.
 * All proposed changes must be approved by a ZFS on Linux organization member.
 ### Testing
 All help is appreciated! If you're in a position to run the latest code
@@ -170,41 +148,16 @@ range of realistic workloads, configurations and architectures we're better
 able quickly identify and resolve potential issues.
 Users can also run the [ZFS Test
-Suite](https://github.com/openzfs/zfs/tree/master/tests) on their systems
+Suite](https://github.com/zfsonlinux/zfs/tree/master/tests) on their systems
 to verify ZFS is behaving as intended.
 ## Style Guides
 ### Repository Structure
 OpenZFS uses a standardised branching structure.
 - The "development and main branch", is the branch all development should be based on.
 - "Release branches" contain the latest released code for said version.
 - "Staging branches" contain selected commits prior to being released.
 **Branch Names:**
 - Development and Main branch: `master`
 - Release branches: `zfs-$VERSION-release`
 - Staging branches: `zfs-$VERSION-staging`
 `$VERSION` should be replaced with the `major.minor` version number.  
 _(This is the version number without the `.patch` version at the end)_
 ### Coding Conventions
 We currently use [C  Style  and  Coding  Standards  for
 SunOS](http://www.cis.upenn.edu/%7Elee/06cse480/data/cstyle.ms.pdf) as our
 coding convention.
 This repository has an `.editorconfig` file. If your editor [supports
 editorconfig](https://editorconfig.org/#download), it will
 automatically respect most of this project's whitespace preferences.
 Additionally, Git can help warn on whitespace problems as well:
 ```
 git config --local core.whitespace trailing-space,space-before-tab,indent-with-non-tab,-tab-in-indent
 ```
 ### Commit Message Formats
 #### New Changes
 Commit messages for new changes must meet the following guidelines:
@@ -214,10 +167,18 @@ first line in the commit message.
 please summarize important information such as why the proposed
 approach was chosen or a brief description of the bug you are resolving.
 Each line of the body must be 72 characters or less.
-* The last line must be a `Signed-off-by:` tag. See the
+* The last line must be a `Signed-off-by:` tag with the developer's
-[Signed Off By](#signed-off-by) section for more information.
+name followed by their email. This is the developer's certification
 that they have the right to submit the patch for inclusion into
 the code base and indicates agreement to the [Developer's Certificate
 of Origin](https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin).
 Code without a proper signoff cannot be merged.
-An example commit message for new changes is provided below.
+Git can append the `Signed-off-by` line to your commit messages. Simply
 provide the `-s` or `--signoff` option when performing a `git commit`.
 For more information about writing commit messages, visit [How to Write
 a Git Commit Message](https://chris.beams.io/posts/git-commit/).
 An example commit message is provided below.
 ```
 This line is a brief summary of your change
@@ -230,52 +191,35 @@ attempting to solve.
 Signed-off-by: Contributor <contributor@email.com>
 ```
-#### Coverity Defect Fixes
+#### OpenZFS Patch Ports
-If you are submitting a fix to a
+If you are porting an OpenZFS patch, the commit message must meet
-[Coverity defect](https://scan.coverity.com/projects/zfsonlinux-zfs),
+the following guidelines:
-the commit message should meet the following guidelines:
+* The first line must be the summary line from the OpenZFS commit.
-* Provides a subject line in the format of
+It must begin with `OpenZFS dddd - ` where `dddd` is the OpenZFS issue number.
-`Fix coverity defects: CID dddd, dddd...` where `dddd` represents
+* Provides a `Authored by:` line to attribute the patch to the original author.
-each CID fixed by the commit.
+* Provides the `Reviewed by:` and `Approved by:` lines from the original
-* Provides a body which lists each Coverity defect and how it was corrected.
+OpenZFS commit.
-* The last line must be a `Signed-off-by:` tag. See the
+* Provides a `Ported-by:` line with the developer's name followed by
-[Signed Off By](#signed-off-by) section for more information.
+their email.
 * Provides a `OpenZFS-issue:` line which is a link to the original illumos
 issue.
 * Provides a `OpenZFS-commit:` line which links back to the original OpenZFS
 commit.
 * If necessary, provide some porting notes to describe any deviations from
 the original OpenZFS commit.
-An example Coverity defect fix commit message is provided below.
+An example OpenZFS patch port commit message is provided below.
 ```
-Fix coverity defects: CID 12345, 67890
+OpenZFS 1234 - Summary from the original OpenZFS commit
-CID 12345: Logically dead code (DEADCODE)
+Authored by: Original Author <original@email.com>
 Reviewed by: Reviewer One <reviewer1@email.com>
 Reviewed by: Reviewer Two <reviewer2@email.com>
 Approved by: Approver One <approver1@email.com>
 Ported-by: ZFS Contributor <contributor@email.com>
-Removed the if(var != 0) block because the condition could never be
+Provide some porting notes here if necessary.
 satisfied.
-CID 67890: Resource Leak (RESOURCE_LEAK)
+OpenZFS-issue: https://www.illumos.org/issues/1234
-
+OpenZFS-commit: https://github.com/openzfs/openzfs/commit/abcd1234
 Ensure free is called after allocating memory in function().
 Signed-off-by: Contributor <contributor@email.com>
 ```
 #### Signed Off By
 A line tagged as `Signed-off-by:` must contain the developer's
 name followed by their email. This is the developer's certification
 that they have the right to submit the patch for inclusion into
 the code base and indicates agreement to the [Developer's Certificate
 of Origin](https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin).
 Code without a proper signoff cannot be merged.
 Git can append the `Signed-off-by` line to your commit messages. Simply
 provide the `-s` or `--signoff` option when performing a `git commit`.
 For more information about writing commit messages, visit [How to Write
 a Git Commit Message](https://chris.beams.io/posts/git-commit/).
 #### Co-authored By
 If someone else had part in your pull request, please add the following to the commit:
 `Co-authored-by: Name <gitregistered@email.address>`
 This is useful if their authorship was lost during squashing, rebasing, etc.,
 but may be used in any situation where there are co-authors.
 The email address used here should be the same as on the GitHub profile of said user.
 If said user does not have their email address public, please use the following instead:
 `Co-authored-by: Name <[username]@users.noreply.github.com>`
@@ -0,0 +1,46 @@
 <!--
 Thank you for reporting an issue.
 *IMPORTANT* - Please search our issue tracker *before* making a new issue.
 If you cannot find a similar issue, then create a new issue.
 https://github.com/zfsonlinux/zfs/issues 
 *IMPORTANT* - This issue tracker is for *bugs* and *issues* only.
 Please search the wiki and the mailing list archives before asking 
 questions on the mailing list.
 https://github.com/zfsonlinux/zfs/wiki/Mailing-Lists
 Please fill in as much of the template as possible.
 -->
 ### System information
 <!--  add version after "|" character -->
 Type                                | Version/Name
  ---                                  |     --- 
 Distribution Name       | 
 Distribution Version    | 
 Linux Kernel                 | 
 Architecture                 | 
 ZFS Version                  | 
 SPL Version                  | 
 <!-- 
 Commands to find ZFS/SPL versions:
 modinfo zfs | grep -iw version
 modinfo spl | grep -iw version 
 -->
 ### Describe the problem you're observing
 ### Describe how to reproduce the problem
 ### Include any warning/errors/backtraces from the system logs
 <!-- 
 *IMPORTANT* - Please mark logs and text output from terminal commands 
 or else Github will not display them correctly. 
 An example is provided below.
 Example:
 ```
 this is an example how log text should be marked (wrap it with ```)
 ```
 -->
@@ -1,53 +0,0 @@
 ---
 name: Bug report
 about: Create a report to help us improve OpenZFS
 title: ''
 labels: 'Type: Defect'
 assignees: ''
 ---
 <!-- Please fill out the following template, which will help other contributors address your issue. -->
 <!--
 Thank you for reporting an issue.
 *IMPORTANT* - Please check our issue tracker before opening a new issue.
 Additional valuable information can be found in the OpenZFS documentation
 and mailing list archives.
 Please fill in as much of the template as possible.
 -->
 ### System information
 <!--  add version after "|" character -->
 Type | Version/Name
 --- | ---
 Distribution Name	|
 Distribution Version	|
 Linux Kernel	|
 Architecture	|
 ZFS Version	|
 SPL Version	|
 <!--
 Commands to find ZFS/SPL versions:
 modinfo zfs | grep -iw version
 modinfo spl | grep -iw version
 -->
 ### Describe the problem you're observing
 ### Describe how to reproduce the problem
 ### Include any warning/errors/backtraces from the system logs
 <!--
 *IMPORTANT* - Please mark logs and text output from terminal commands
 or else Github will not display them correctly.
 An example is provided below.
 Example:
 ```
 this is an example how log text should be marked (wrap it with ```)
 ```
 -->
@@ -1,11 +0,0 @@
 blank_issues_enabled: false
 contact_links:
  - name: OpenZFS Community Support Mailing list (Linux)
    url: https://zfsonlinux.topicbox.com/groups/zfs-discuss
    about: Get community support for OpenZFS on Linux
  - name: FreeBSD Community Support Mailing list
    url: https://lists.freebsd.org/mailman/listinfo/freebsd-fs
    about: Get community support for OpenZFS on FreeBSD
  - name: OpenZFS on IRC
    url: https://webchat.freenode.net/#openzfs
    about: Use IRC to get community support for OpenZFS
@@ -1,33 +0,0 @@
 ---
 name: Feature request
 about: Suggest a feature for OpenZFS
 title: ''
 labels: 'Type: Feature'
 assignees: ''
 ---
 <!--
 Thank you for suggesting a feature.
 Please check our issue tracker before opening a new feature request.
 Filling out the following template will help other contributors better understand your proposed feature.
 -->
 ### Describe the feature would like to see added to OpenZFS
 <!--
 Provide a clear and concise description of the feature.
 -->
 ### How will this feature improve OpenZFS?
 <!--
 What problem does this feature solve?
 -->
 ### Additional context
 <!--
 Any additional information you can add about the proposal?
 -->
@@ -1,37 +0,0 @@
 ---
 name: Code Question
 about: Ask a question about the code
 title: ''
 labels: 'Type: Question'
 assignees: ''
 ---
 <!--
 Thank you for taking an interest in the OpenZFS codebase.
 Please be aware that most questions are preferably asked in the mailing list first.
 This form is primarily meant for asking questions about the code itself.
 Please also check our issue tracker before opening a new question.
 Filling out the following template will help other contributors better understand your question.
 -->
 ### Ask your question!
 <!--
 Please provide a clear and concise question.
 -->
 ### Which portion of the codebase does your question involve?
 <!--
 Optional: Please describe what portion of the codebase your issue involved.
 Example: "Testsuite", "Buildbots", "CLI", a code snippet etc.
 -->
 ### Additional context
 <!--
 Any additional information you want to add?
 -->
@@ -1,25 +1,22 @@
 <!--- Please fill out the following template, which will help other contributors review your Pull Request. -->
 <!--- Provide a general summary of your changes in the Title above -->
 <!---
 Documentation on ZFS Buildbot options can be found at
-https://openzfs.github.io/openzfs-docs/Developer%20Resources/Buildbot%20Options.html
+https://github.com/zfsonlinux/zfs/wiki/Buildbot-Options
 -->
 ### Description
 <!--- Describe your changes in detail -->
 ### Motivation and Context
 <!--- Why is this change required? What problem does it solve? -->
 <!--- If it fixes an open issue, please link to the issue here. -->
 ### Description
 <!--- Describe your changes in detail -->
 ### How Has This Been Tested?
 <!--- Please describe in detail how you tested your changes. -->
 <!--- Include details of your testing environment, and the tests you ran to -->
 <!--- see how your change affects other areas of the code, etc. -->
 <!--- If your change is a performance enhancement, please provide benchmarks here. -->
 <!--- Please think about using the draft PR feature if appropriate -->
 ### Types of changes
 <!--- What types of changes does your code introduce? Put an `x` in all the boxes that apply: -->
@@ -33,9 +30,10 @@ https://openzfs.github.io/openzfs-docs/Developer%20Resources/Buildbot%20Options.
 ### Checklist:
 <!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
 <!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->
- [ ] My code follows the ZFS on Linux [code style requirements](https://github.com/zfsonlinux/zfs/blob/master/.github/CONTRIBUTING.md#coding-conventions).
+- [ ] My code follows the ZFS on Linux code style requirements.
 - [ ] I have updated the documentation accordingly.
- [ ] I have read the [**contributing** document](https://github.com/zfsonlinux/zfs/blob/master/.github/CONTRIBUTING.md).
+- [ ] I have read the **CONTRIBUTING** document.
- [ ] I have added [tests](https://github.com/zfsonlinux/zfs/tree/master/tests) to cover my changes.
+- [ ] I have added tests to cover my changes.
- [ ] I have run the ZFS Test Suite with this change applied.
+- [ ] All new and existing tests passed.
- [ ] All commit messages are properly formatted and contain [`Signed-off-by`](https://github.com/zfsonlinux/zfs/blob/master/.github/CONTRIBUTING.md#signed-off-by).
+- [ ] All commit messages are properly formatted and contain `Signed-off-by`.
 - [ ] Change has been approved by a ZFS on Linux member.
@@ -1,25 +1,30 @@
 codecov:
  notify:
-    require_ci_to_pass: false	# always post
+    require_ci_to_pass: no
    after_n_builds: 2		# user and kernel
 coverage:
-  precision: 0			# 0 decimals of precision
+  precision: 2
-  round: nearest        # Round to nearest precision point
+  round: down
-  range: "50...90"		# red -> yellow -> green
+  range: "50...100"
  status:
    project:
      default:
-        threshold: 1%		# allow 1% coverage variance
+        threshold: 1%
    patch:
      default:
-        threshold: 1%		# allow 1% coverage variance
+        threshold: 1%
 parsers:
  gcov:
    branch_detection:
      conditional: yes
      loop: yes
      method: no
      macro: no
 comment:
-  layout: "reach, diff, flags, footer"
+  layout: "header, sunburst, diff"
-  behavior: once		# update if exists; post new; skip if deleted
+  behavior: default
-  require_changes: yes		# only post when coverage changes
+  require_changes: no
 # ignore: Please place any ignores in config/ax_code_coverage.m4 instead
@@ -1,17 +0,0 @@
 # Number of days of inactivity before an issue becomes stale
 daysUntilStale: 365
 # Number of days of inactivity before a stale issue is closed
 daysUntilClose: 90
 # Limit to only `issues` or `pulls`
 only: issues
 # Issues with these labels will never be considered stale
 exemptLabels:
  - "Type: Feature"
  - "Type: Understood"
 # Label to use when marking an issue as stale
 staleLabel: "Status: Stale"
 # Comment to post when marking an issue as stale. Set to `false` to disable
 markComment: >
  This issue has been automatically marked as "stale" because it has not had
  any activity for a while. It will be closed in 90 days if no further activity occurs. 
  Thank you for your contributions.
@@ -0,0 +1,3 @@
 preprocessorErrorDirective:./module/zfs/vdev_raidz_math_avx512f.c:243
 preprocessorErrorDirective:./module/zfs/vdev_raidz_math_sse2.c:266
@@ -1,36 +0,0 @@
 name: checkstyle
 on:
  push:
  pull_request:
 jobs:
  checkstyle:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.event.pull_request.head.sha }}
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install --yes -qq build-essential autoconf libtool gawk alien fakeroot linux-headers-$(uname -r)
        sudo apt-get install --yes -qq zlib1g-dev uuid-dev libattr1-dev libblkid-dev libselinux-dev libudev-dev libssl-dev python-dev python-setuptools python-cffi python3 python3-dev python3-setuptools python3-cffi
        # packages for tests
        sudo apt-get install --yes -qq parted lsscsi ksh attr acl nfs-kernel-server fio
        sudo apt-get install --yes -qq mandoc cppcheck pax-utils abigail-tools # devscripts - enable then bashisms fixed
        sudo -E pip --quiet install flake8
    - name: Prepare
      run: |
        sh ./autogen.sh
        ./configure
    - name: Checkstyle
      run: |
        make checkstyle
    - name: Lint
      run: |
        make lint
    - name: CheckABI
      run: |
        make -j$(nproc)
        make checkabi
@@ -1,64 +0,0 @@
 name: zfs-tests-functional
 on:
  push:
  pull_request:
 jobs:
  tests-functional-ubuntu:
    strategy:
      fail-fast: false
      matrix:
        os: [18.04, 20.04]
    runs-on: ubuntu-${{ matrix.os }}
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.event.pull_request.head.sha }}
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install --yes -qq build-essential autoconf libtool gdb lcov \
          git alien fakeroot wget curl bc fio acl \
          sysstat mdadm lsscsi parted gdebi attr dbench watchdog ksh \
          nfs-kernel-server samba rng-tools xz-utils \
          zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
          xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
          libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
          libpam0g-dev pamtester python-dev python-setuptools python-cffi \
          python3 python3-dev python3-setuptools python3-cffi
    - name: Autogen.sh
      run: |
        sh autogen.sh
    - name: Configure
      run: |
        ./configure --enable-debug --enable-debuginfo
    - name: Make
      run: |
        make --no-print-directory -s pkg-utils pkg-kmod
    - name: Install
      run: |
        sudo dpkg -i *.deb
        # Update order of directories to search for modules, otherwise
        #   Ubuntu will load kernel-shipped ones.
        sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
        sudo depmod
        sudo modprobe zfs
    - name: Tests
      run: |
        /usr/share/zfs/zfs-tests.sh -v -s 3G
    - name: Prepare artifacts
      if: failure()
      run: |
        RESULTS_PATH=$(readlink -f /var/tmp/test_results/current)
        sudo dmesg > $RESULTS_PATH/dmesg
        sudo cp /var/log/syslog $RESULTS_PATH/
        sudo chmod +r $RESULTS_PATH/*
        # Replace ':' in dir names, actions/upload-artifact doesn't support it
        for f in $(find $RESULTS_PATH -name '*:*'); do mv "$f" "${f//:/__}"; done
    - uses: actions/upload-artifact@v2
      if: failure()
      with:
        name: Test logs Ubuntu-${{ matrix.os }}
        path: /var/tmp/test_results/20*/
        if-no-files-found: ignore
@@ -1,60 +0,0 @@
 name: zfs-tests-sanity
 on:
  push:
  pull_request:
 jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.event.pull_request.head.sha }}
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install --yes -qq build-essential autoconf libtool gdb lcov \
          git alien fakeroot wget curl bc fio acl \
          sysstat mdadm lsscsi parted gdebi attr dbench watchdog ksh \
          nfs-kernel-server samba rng-tools xz-utils \
          zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
          xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
          libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
          libpam0g-dev pamtester python-dev python-setuptools python-cffi \
          python3 python3-dev python3-setuptools python3-cffi
    - name: Autogen.sh
      run: |
        sh autogen.sh
    - name: Configure
      run: |
        ./configure --enable-debug --enable-debuginfo
    - name: Make
      run: |
        make --no-print-directory -s pkg-utils pkg-kmod
    - name: Install
      run: |
        sudo dpkg -i *.deb
        # Update order of directories to search for modules, otherwise
        #   Ubuntu will load kernel-shipped ones.
        sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
        sudo depmod
        sudo modprobe zfs
    - name: Tests
      run: |
        /usr/share/zfs/zfs-tests.sh -v -s 3G -r sanity
    - name: Prepare artifacts
      if: failure()
      run: |
        RESULTS_PATH=$(readlink -f /var/tmp/test_results/current)
        sudo dmesg > $RESULTS_PATH/dmesg
        sudo cp /var/log/syslog $RESULTS_PATH/
        sudo chmod +r $RESULTS_PATH/*
        # Replace ':' in dir names, actions/upload-artifact doesn't support it
        for f in $(find $RESULTS_PATH -name '*:*'); do mv "$f" "${f//:/__}"; done
    - uses: actions/upload-artifact@v2
      if: failure()
      with:
        name: Test logs
        path: /var/tmp/test_results/20*/
        if-no-files-found: ignore
@@ -1,67 +0,0 @@
 name: zloop
 on:
  push:
  pull_request:
 jobs:
  tests:
    runs-on: ubuntu-latest
    env:
      TEST_DIR: /var/tmp/zloop
    steps:
    - uses: actions/checkout@v2
      with:
        ref: ${{ github.event.pull_request.head.sha }}
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install --yes -qq build-essential autoconf libtool gdb \
          git alien fakeroot \
          zlib1g-dev uuid-dev libblkid-dev libselinux-dev \
          xfslibs-dev libattr1-dev libacl1-dev libudev-dev libdevmapper-dev \
          libssl-dev libffi-dev libaio-dev libelf-dev libmount-dev \
          libpam0g-dev \
          python-dev python-setuptools python-cffi \
          python3 python3-dev python3-setuptools python3-cffi
    - name: Autogen.sh
      run: |
        sh autogen.sh
    - name: Configure
      run: |
        ./configure --enable-debug --enable-debuginfo
    - name: Make
      run: |
        make --no-print-directory -s pkg-utils pkg-kmod
    - name: Install
      run: |
        sudo dpkg -i *.deb
        # Update order of directories to search for modules, otherwise
        #   Ubuntu will load kernel-shipped ones.
        sudo sed -i.bak 's/updates/extra updates/' /etc/depmod.d/ubuntu.conf
        sudo depmod
        sudo modprobe zfs
    - name: Tests
      run: |
        sudo mkdir -p $TEST_DIR
        # run for 20 minutes to have a total runner time of 30 minutes
        sudo /usr/share/zfs/zloop.sh -t 1200 -l -m1
    - name: Prepare artifacts
      if: failure()
      run: |
        sudo chmod +r -R $TEST_DIR/
    - uses: actions/upload-artifact@v2
      if: failure()
      with:
        name: Logs
        path: |
          /var/tmp/zloop/*/
          !/var/tmp/zloop/*/vdev/
        if-no-files-found: ignore
    - uses: actions/upload-artifact@v2
      if: failure()
      with:
        name: Pool files
        path: |
          /var/tmp/zloop/*/vdev/
        if-no-files-found: ignore
@@ -14,7 +14,6 @@
 # Normal rules
 #
 *.[oa]
 *.o.ur-safe
 *.lo
 *.la
 *.mod.c
@@ -22,8 +21,6 @@
 *.swp
 *.gcno
 *.gcda
 *.pyc
 *.pyo
 .deps
 .libs
 .dirstamp
@@ -36,7 +33,6 @@ Makefile.in
 # Top level generated files specific to this top level dir
 #
 /bin
 /build
 /configure
 /config.log
 /config.status
@@ -45,6 +41,8 @@ Makefile.in
 /zfs_config.h.in
 /zfs.release
 /stamp-h1
 /.script-config
 /zfs-script-config.sh
 /aclocal.m4
 /autom4te.cache
@@ -61,10 +59,3 @@ cscope.*
 *.tar.gz
 *.patch
 *.orig
 *.log
 *.tmp
 venv
 *.so
 *.so.debug
 *.so.full
@@ -1,308 +1,95 @@
-MAINTAINERS:
+Brian Behlendorf is the principal developer of the ZFS on Linux port.
 He works full time as a computer scientist at Lawrence Livermore
 National Laboratory on the ZFS and Lustre filesystems.  However,
 this port would not have been possible without the help of many
 others who have contributed their time, effort, and insight.
-    Brian Behlendorf <behlendorf1@llnl.gov>
+  Brian Behlendorf <behlendorf1@llnl.gov>
    Tony Hutter <hutter2@llnl.gov>
-PAST MAINTAINERS:
+First and foremost the hard working ZFS developers at Sun/Oracle.
 They are responsible for the bulk of the code in this project and
 without their efforts there never would have been a ZFS filesystem.
-    Ned Bass <bass6@llnl.gov>
+  The ZFS Development Team at Sun/Oracle
-CONTRIBUTORS:
+Next all the developers at KQ Infotech who implemented a prototype
 ZFS Posix Layer (ZPL).  Their implementation provided an excellent
 reference for adding the ZPL functionality.
-    Aaron Fineman <abyxcos@gmail.com>
+  Anand Mitra <mitra@kqinfotech.com>
-    Adam Leventhal <ahl@delphix.com>
+  Anurag Agarwal <anurag@kqinfotech.com>
-    Adam Stevko <adam.stevko@gmail.com>
+  Neependra Khare <neependra@kqinfotech.com>
-    Ahmed G <ahmedg@delphix.com>
+  Prasad Joshi <prasad@kqinfotech.com>
-    Akash Ayare <aayare@delphix.com>
+  Rohan Puri <rohan@kqinfotech.com>
-    Alan Somers <asomers@gmail.com>
+  Sandip Divekar <sandipd@kqinfotech.com>
-    Alar Aun <spamtoaun@gmail.com>
+  Shoaib <shoaib@kqinfotech.com>
-    Albert Lee <trisk@nexenta.com>
+  Shrirang <shrirang@kqinfotech.com>
-    Alec Salazar <alec.j.salazar@gmail.com>
+
-    Alejandro R. Sedeño <asedeno@mit.edu>
+Additionally the following individuals have all made contributions
-    Alek Pinchuk <alek@nexenta.com>
+to the project and deserve to be acknowledged.
-    Alex Braunegg <alex.braunegg@gmail.com>
+
-    Alex McWhirter <alexmcwhirter@triadic.us>
+  Albert Lee <trisk@nexenta.com>
-    Alex Reece <alex@delphix.com>
+  Alejandro R. Sedeño <asedeno@mit.edu>
-    Alex Wilson <alex.wilson@joyent.com>
+  Alex Zhuravlev <bzzz@whamcloud.com>
-    Alex Zhuravlev <alexey.zhuravlev@intel.com>
+  Alexander Eremin <a.eremin@nexenta.com>
-    Alexander Eremin <a.eremin@nexenta.com>
+  Alexander Stetsenko <ams@nexenta.com>
-    Alexander Motin <mav@freebsd.org>
+  Alexey Shvetsov <alexxy@gentoo.org>
-    Alexander Pyhalov <apyhalov@gmail.com>
+  Andreas Dilger <adilger@whamcloud.com>
-    Alexander Stetsenko <ams@nexenta.com>
+  Andrew Reid <ColdCanuck@nailedtotheperch.com>
-    Alexey Shvetsov <alexxy@gentoo.org>
+  Andrew Stormont <andrew.stormont@nexenta.com>
-    Alexey Smirnoff <fling@member.fsf.org>
+  Andrew Tselischev <andrewtselischev@gmail.com>
-    Allan Jude <allanjude@freebsd.org>
+  Andriy Gapon <avg@FreeBSD.org>
-    AndCycle <andcycle@andcycle.idv.tw>
+  Aniruddha Shankar <k@191a.net>
-    Andreas Buschmann <andreas.buschmann@tech.net.de>
+  Bill Pijewski <wdp@joyent.com>
-    Andreas Dilger <adilger@intel.com>
+  Chris Dunlap <cdunlap@llnl.gov>
-    Andrew Barnes <barnes333@gmail.com>
+  Chris Dunlop <chris@onthe.net.au>
-    Andrew Hamilton <ahamilto@tjhsst.edu>
+  Chris Siden <chris.siden@delphix.com>
-    Andrew Reid <ColdCanuck@nailedtotheperch.com>
+  Chris Wedgwood <cw@f00f.org>
-    Andrew Stormont <andrew.stormont@nexenta.com>
+  Christian Kohlschütter <christian@kohlschutter.com>
-    Andrew Tselischev <andrewtselischev@gmail.com>
+  Christopher Siden <chris.siden@delphix.com>
-    Andrey Vesnovaty <andrey.vesnovaty@gmail.com>
+  Craig Sanders <github@taz.net.au>
-    Andriy Gapon <avg@freebsd.org>
+  Cyril Plisko <cyril.plisko@mountall.com>
-    Andy Bakun <github@thwartedefforts.org>
+  Dan McDonald <danmcd@nexenta.com>
-    Aniruddha Shankar <k@191a.net>
+  Daniel Verite <daniel@verite.pro>
-    Antonio Russo <antonio.e.russo@gmail.com>
+  Darik Horn <dajhorn@vanadac.com>
-    Arkadiusz Bubała <arkadiusz.bubala@open-e.com>
+  Eric Schrock <Eric.Schrock@delphix.com>
-    Arne Jansen <arne@die-jansens.de>
+  Etienne Dechamps <etienne.dechamps@ovh.net>
-    Aron Xu <happyaron.xu@gmail.com>
+  Fajar A. Nugraha <github@fajar.net>
-    Bart Coddens <bart.coddens@gmail.com>
+  Frederik Wessels <wessels147@gmail.com>
-    Basil Crow <basil.crow@delphix.com>
+  Garrett D'Amore <garrett@nexenta.com>
-    Huang Liu <liu.huang@zte.com.cn>
+  George Wilson <george.wilson@delphix.com>
-    Ben Allen <bsallen@alcf.anl.gov>
+  Gordon Ross <gwr@nexenta.com>
-    Ben Rubson <ben.rubson@gmail.com>
+  Gregor Kopka <mailfrom-github.com@kopka.net>
-    Benjamin Albrecht <git@albrecht.io>
+  Gunnar Beutner <gunnar@beutner.name>
-    Bill McGonigle <bill-github.com-public1@bfccomputing.com>
+  James H <james@kagisoft.co.uk>
-    Bill Pijewski <wdp@joyent.com>
+  Javen Wu <wu.javen@gmail.com>
-    Boris Protopopov <boris.protopopov@nexenta.com>
+  Jeremy Gill <jgill@parallax-innovations.com>
-    Brad Lewis <brad.lewis@delphix.com>
+  Jorgen Lundman <lundman@lundman.net>
-    Brian Behlendorf <behlendorf1@llnl.gov>
+  KORN Andras <korn@elan.rulez.org>
-    Brian J. Murrell <brian@sun.com>
+  Kyle Fuller <inbox@kylefuller.co.uk>
-    Caleb James DeLisle <calebdelisle@lavabit.com>
+  Manuel Amador (Rudd-O) <rudd-o@rudd-o.com>
-    Cao Xuewen <cao.xuewen@zte.com.cn>
+  Martin Matuska <mm@FreeBSD.org>
-    Carlo Landmeter <clandmeter@gmail.com>
+  Massimo Maggi <massimo@mmmm.it>
-    Carlos Alberto Lopez Perez <clopez@igalia.com>
+  Matthew Ahrens <mahrens@delphix.com>
-    Chaoyu Zhang <zhang.chaoyu@zte.com.cn>
+  Michael Martin <mgmartin.mgm@gmail.com>
-    Chen Can <chen.can2@zte.com.cn>
+  Mike Harsch <mike@harschsystems.com>
-    Chen Haiquan <oc@yunify.com>
+  Ned Bass <bass6@llnl.gov>
-    Chip Parker <aparker@enthought.com>
+  Oleg Stepura <oleg@stepura.com>
-    Chris Burroughs <chris.burroughs@gmail.com>
+  P.SCH <p88@yahoo.com>
-    Chris Dunlap <cdunlap@llnl.gov>
+  Pawel Jakub Dawidek <pawel@dawidek.net>
-    Chris Dunlop <chris@onthe.net.au>
+  Prakash Surya <surya1@llnl.gov>
-    Chris Siden <chris.siden@delphix.com>
+  Prasad Joshi <pjoshi@stec-inc.com>
-    Chris Wedgwood <cw@f00f.org>
+  Ricardo M. Correia <Ricardo.M.Correia@Sun.COM>
-    Chris Williamson <chris.williamson@delphix.com>
+  Richard Laager <rlaager@wiktel.com>
-    Chris Zubrzycki <github@mid-earth.net>
+  Richard Lowe <richlowe@richlowe.net>
-    Christ Schlacta <aarcane@aarcane.info>
+  Richard Yao <ryao@cs.stonybrook.edu>
-    Christer Ekholm <che@chrekh.se>
+  Rohan Puri <rohan.puri15@gmail.com>
-    Christian Kohlschütter <christian@kohlschutter.com>
+  Shampavman <sham.pavman@nexenta.com>
-    Christian Neukirchen <chneukirchen@gmail.com>
+  Simon Klinkert <klinkert@webgods.de>
-    Christian Schwarz <me@cschwarz.com>
+  Suman Chakravartula <suman@gogrid.com>
-    Christopher Voltz <cjunk@voltz.ws>
+  Tim Haley <Tim.Haley@Sun.COM>
-    Chunwei Chen <david.chen@nutanix.com>
+  Turbo Fredriksson <turbo@bayour.com>
-    Clemens Fruhwirth <clemens@endorphin.org>
+  Xin Li <delphij@FreeBSD.org>
-    Coleman Kane <ckane@colemankane.org>
+  Yuxuan Shui <yshuiv7@gmail.com>
-    Colin Ian King <colin.king@canonical.com>
+  Zachary Bedell <zac@thebedells.org>
-    Craig Loomis <cloomis@astro.princeton.edu>
+  nordaux <nordaux@gmail.com>
    Craig Sanders <github@taz.net.au>
    Cyril Plisko <cyril.plisko@infinidat.com>
    DHE <git@dehacked.net>
    Damian Wojsław <damian@wojslaw.pl>
    Dan Kimmel <dan.kimmel@delphix.com>
    Dan McDonald <danmcd@nexenta.com>
    Dan Swartzendruber <dswartz@druber.com>
    Dan Vatca <dan.vatca@gmail.com>
    Daniel Hoffman <dj.hoffman@delphix.com>
    Daniel Verite <daniel@verite.pro>
    Daniil Lunev <d.lunev.mail@gmail.com>
    Darik Horn <dajhorn@vanadac.com>
    Dave Eddy <dave@daveeddy.com>
    David Lamparter <equinox@diac24.net>
    David Qian <david.qian@intel.com>
    David Quigley <david.quigley@intel.com>
    Debabrata Banerjee <dbanerje@akamai.com>
    Denys Rtveliashvili <denys@rtveliashvili.name>
    Derek Dai <daiderek@gmail.com>
    Dimitri John Ledkov <xnox@ubuntu.com>
    Dmitry Khasanov <pik4ez@gmail.com>
    Dominik Hassler <hadfl@omniosce.org>
    Dominik Honnef <dominikh@fork-bomb.org>
    Don Brady <don.brady@delphix.com>
    Dr. András Korn <korn-github.com@elan.rulez.org>
    Eli Rosenthal <eli.rosenthal@delphix.com>
    Eric Desrochers <eric.desrochers@canonical.com>
    Eric Dillmann <eric@jave.fr>
    Eric Schrock <Eric.Schrock@delphix.com>
    Etienne Dechamps <etienne@edechamps.fr>
    Evan Susarret <evansus@gmail.com>
    Fabian Grünbichler <f.gruenbichler@proxmox.com>
    Fajar A. Nugraha <github@fajar.net>
    Fan Yong <fan.yong@intel.com>
    Feng Sun <loyou85@gmail.com>
    Frederik Wessels <wessels147@gmail.com>
    Frédéric Vanniere <f.vanniere@planet-work.com>
    Garrett D'Amore <garrett@nexenta.com>
    Garrison Jensen <garrison.jensen@gmail.com>
    Gary Mills <gary_mills@fastmail.fm>
    Gaurav Kumar  <gauravk.18@gmail.com>
    GeLiXin <ge.lixin@zte.com.cn>
    George Amanakis <g_amanakis@yahoo.com>
    George Melikov <mail@gmelikov.ru>
    George Wilson <gwilson@delphix.com>
    Georgy Yakovlev <ya@sysdump.net>
    Giuseppe Di Natale <guss80@gmail.com>
    Gordan Bobic <gordan@redsleeve.org>
    Gordon Ross <gwr@nexenta.com>
    Gregor Kopka <gregor@kopka.net>
    Grischa Zengel <github.zfsonlinux@zengel.info>
    Gunnar Beutner <gunnar@beutner.name>
    Gvozden Neskovic <neskovic@gmail.com>
    Hajo Möller <dasjoe@gmail.com>
    Hans Rosenfeld <hans.rosenfeld@nexenta.com>
    Håkan Johansson <f96hajo@chalmers.se>
    Igor Kozhukhov <ikozhukhov@gmail.com>
    Igor Lvovsky <ilvovsky@gmail.com>
    Isaac Huang <he.huang@intel.com>
    JK Dingwall <james@dingwall.me.uk>
    Jacek Fefliński <feflik@gmail.com>
    James Cowgill <james.cowgill@mips.com>
    James Lee <jlee@thestaticvoid.com>
    James Pan <jiaming.pan@yahoo.com>
    Jan Engelhardt <jengelh@inai.de>
    Jan Kryl <jan.kryl@nexenta.com>
    Jan Sanislo <oystr@cs.washington.edu>
    Jason King <jason.brian.king@gmail.com>
    Jason Zaman <jasonzaman@gmail.com>
    Javen Wu <wu.javen@gmail.com>
    Jeremy Gill <jgill@parallax-innovations.com>
    Jeremy Jones <jeremy@delphix.com>
    Jerry Jelinek <jerry.jelinek@joyent.com>
    Jinshan Xiong <jinshan.xiong@intel.com>
    Joe Stein <joe.stein@delphix.com>
    John Albietz <inthecloud247@gmail.com>
    John Eismeier <john.eismeier@gmail.com>
    John L. Hammond <john.hammond@intel.com>
    John Layman <jlayman@sagecloud.com>
    John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
    John Wren Kennedy <john.kennedy@delphix.com>
    Johnny Stenback <github@jstenback.com>
    Jorgen Lundman <lundman@lundman.net>
    Josef 'Jeff' Sipek <josef.sipek@nexenta.com>
    Joshua M. Clulow <josh@sysmgr.org>
    Justin Bedő <cu@cua0.org>
    Justin Lecher <jlec@gentoo.org>
    Justin T. Gibbs <gibbs@FreeBSD.org>
    Jörg Thalheim <joerg@higgsboson.tk>
    KORN Andras <korn@elan.rulez.org>
    Kamil Domański <kamil@domanski.co>
    Karsten Kretschmer <kkretschmer@gmail.com>
    Kash Pande <kash@tripleback.net>
    Keith M Wesolowski <wesolows@foobazco.org>
    Kevin Tanguy <kevin.tanguy@ovh.net>
    KireinaHoro <i@jsteward.moe>
    Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>
    Kohsuke Kawaguchi <kk@kohsuke.org>
    Kyle Blatter <kyleblatter@llnl.gov>
    Kyle Fuller <inbox@kylefuller.co.uk>
    Loli <ezomori.nozomu@gmail.com>
    Lars Johannsen <laj@it.dk>
    Li Dongyang <dongyang.li@anu.edu.au>
    Li Wei <W.Li@Sun.COM>
    Lukas Wunner <lukas@wunner.de>
    Madhav Suresh <madhav.suresh@delphix.com>
    Manoj Joseph <manoj.joseph@delphix.com>
    Manuel Amador (Rudd-O) <rudd-o@rudd-o.com>
    Marcel Huber <marcelhuberfoo@gmail.com>
    Marcel Telka <marcel.telka@nexenta.com>
    Marcel Wysocki <maci.stgn@gmail.com>
    Mark Shellenbaum <Mark.Shellenbaum@Oracle.COM>
    Mark Wright <markwright@internode.on.net>
    Martin Matuska <mm@FreeBSD.org>
    Massimo Maggi <me@massimo-maggi.eu>
    Matt Johnston <matt@fugro-fsi.com.au>
    Matt Kemp <matt@mattikus.com>
    Matthew Ahrens <matt@delphix.com>
    Matthew Thode <mthode@mthode.org>
    Matus Kral <matuskral@me.com>
    Max Grossman <max.grossman@delphix.com>
    Maximilian Mehnert <maximilian.mehnert@gmx.de>
    Michael Gebetsroither <michael@mgeb.org>
    Michael Kjorling <michael@kjorling.se>
    Michael Martin <mgmartin.mgm@gmail.com>
    Michael Niewöhner <foss@mniewoehner.de>
    Mike Gerdts <mike.gerdts@joyent.com>
    Mike Harsch <mike@harschsystems.com>
    Mike Leddy <mike.leddy@gmail.com>
    Mike Swanson <mikeonthecomputer@gmail.com>
    Milan Jurik <milan.jurik@xylab.cz>
    Morgan Jones <mjones@rice.edu>
    Moritz Maxeiner <moritz@ucworks.org>
    Nathaniel Clark <Nathaniel.Clark@misrule.us>
    Nathaniel Wesley Filardo <nwf@cs.jhu.edu>
    Nav Ravindranath <nav@delphix.com>
    Neal Gompa (ニール・ゴンパ) <ngompa13@gmail.com>
    Ned Bass <bass6@llnl.gov>
    Neependra Khare <neependra@kqinfotech.com>
    Neil Stockbridge <neil@dist.ro>
    Nick Garvey <garvey.nick@gmail.com>
    Nikolay Borisov <n.borisov.lkml@gmail.com>
    Olaf Faaland <faaland1@llnl.gov>
    Oleg Drokin <green@linuxhacker.ru>
    Oleg Stepura <oleg@stepura.com>
    Patrik Greco <sikevux@sikevux.se>
    Paul B. Henson <henson@acm.org>
    Paul Dagnelie <pcd@delphix.com>
    Paul Zuchowski <pzuchowski@datto.com>
    Pavel Boldin <boldin.pavel@gmail.com>
    Pavel Zakharov <pavel.zakharov@delphix.com>
    Pawel Jakub Dawidek <pjd@FreeBSD.org>
    Pedro Giffuni <pfg@freebsd.org>
    Peng <peng.hse@xtaotech.com>
    Peter Ashford <ashford@accs.com>
    Prakash Surya <prakash.surya@delphix.com>
    Prasad Joshi <prasadjoshi124@gmail.com>
    Ralf Ertzinger <ralf@skytale.net>
    Randall Mason <ClashTheBunny@gmail.com>
    Remy Blank <remy.blank@pobox.com>
    Ricardo M. Correia <ricardo.correia@oracle.com>
    Rich Ercolani <rincebrain@gmail.com>
    Richard Elling <Richard.Elling@RichardElling.com>
    Richard Laager <rlaager@wiktel.com>
    Richard Lowe <richlowe@richlowe.net>
    Richard Sharpe <rsharpe@samba.org>
    Richard Yao <ryao@gentoo.org>
    Rohan Puri <rohan.puri15@gmail.com>
    Romain Dolbeau <romain.dolbeau@atos.net>
    Roman Strashkin <roman.strashkin@nexenta.com>
    Ruben Kerkhof <ruben@rubenkerkhof.com>
    Saso Kiselkov <saso.kiselkov@nexenta.com>
    Scot W. Stevenson <scot.stevenson@gmail.com>
    Sean Eric Fagan <sef@ixsystems.com>
    Sebastian Gottschall <s.gottschall@dd-wrt.com>
    Sen Haerens <sen@senhaerens.be>
    Serapheim Dimitropoulos <serapheim@delphix.com>
    Seth Forshee <seth.forshee@canonical.com>
    Shampavman <sham.pavman@nexenta.com>
    Shen Yan <shenyanxxxy@qq.com>
    Simon Guest <simon.guest@tesujimath.org>
    Simon Klinkert <simon.klinkert@gmail.com>
    Sowrabha Gopal <sowrabha.gopal@delphix.com>
    Stanislav Seletskiy <s.seletskiy@gmail.com>
    Steffen Müthing <steffen.muething@iwr.uni-heidelberg.de>
    Stephen Blinick <stephen.blinick@delphix.com>
    Steve Dougherty <sdougherty@barracuda.com>
    Steven Burgess <sburgess@dattobackup.com>
    Steven Hartland <smh@freebsd.org>
    Steven Johnson <sjohnson@sakuraindustries.com>
    Stian Ellingsen <stian@plaimi.net>
    Suman Chakravartula <schakrava@gmail.com>
    Sydney Vanda <sydney.m.vanda@intel.com>
    Sören Tempel <soeren+git@soeren-tempel.net>
    Thijs Cramer <thijs.cramer@gmail.com>
    Tim Chase <tim@chase2k.com>
    Tim Connors <tconnors@rather.puzzling.org>
    Tim Crawford <tcrawford@datto.com>
    Tim Haley <Tim.Haley@Sun.COM>
    Tobin Harding <me@tobin.cc>
    Tom Caputi <tcaputi@datto.com>
    Tom Matthews <tom@axiom-partners.com>
    Tom Prince <tom.prince@ualberta.net>
    Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
    Tony Hutter <hutter2@llnl.gov>
    Toomas Soome <tsoome@me.com>
    Trey Dockendorf <treydock@gmail.com>
    Turbo Fredriksson <turbo@bayour.com>
    Tyler J. Stachecki <stachecki.tyler@gmail.com>
    Vitaut Bajaryn <vitaut.bayaryn@gmail.com>
    Weigang Li <weigang.li@intel.com>
    Will Andrews <will@freebsd.org>
    Will Rouesnel <w.rouesnel@gmail.com>
    Wolfgang Bumiller <w.bumiller@proxmox.com>
    Xin Li <delphij@FreeBSD.org>
    Ying Zhu <casualfisher@gmail.com>
    YunQiang Su <syq@debian.org>
    Yuri Pankov <yuri.pankov@gmail.com>
    Yuxuan Shui <yshuiv7@gmail.com>
    Zachary Bedell <zac@thebedells.org>
@@ -1,2 +0,0 @@
 The [OpenZFS Code of Conduct](http://www.open-zfs.org/wiki/Code_of_Conduct)
 applies to spaces associated with the OpenZFS project, including GitHub.
@@ -1,31 +1,33 @@
-Refer to the git commit log for authoritative copyright attribution.
+The majority of the code in the ZFS on Linux port comes from OpenSolaris
 which has been released under the terms of the CDDL open source license.
 This includes the core ZFS code, libavl, libnvpair, libefi, libunicode,
 and libutil.  The original OpenSolaris source can be downloaded from:
-The original ZFS source code was obtained from Open Solaris which was
+http://dlc.sun.com/osol/on/downloads/b121/on-src.tar.bz2
 released under the terms of the CDDL open source license.  Additional
 changes have been included from OpenZFS and the Illumos project which
 are similarly licensed.  These projects can be found on Github at:
-  * https://github.com/illumos/illumos-gate
+Files which do not originate from OpenSolaris are noted in the file header
-  * https://github.com/openzfs/openzfs
+and attributed properly.  These exceptions include, but are not limited
 to, the vdev_disk.c and zvol.c implementation which are licensed under
 the CDDL.
 The zpios test code is originally derived from the Lustre pios test code
 which is licensed under the GPLv2.  As such the heavily modified zpios
 kernel test code also remains licensed under the GPLv2.
 The latest stable and development versions of this port can be downloaded
 from the official ZFS on Linux site located at:
 http://zfsonlinux.org/
 This ZFS on Linux port was produced at the Lawrence Livermore National
 Laboratory (LLNL) under Contract No. DE-AC52-07NA27344 (Contract 44)
 between the U.S. Department of Energy (DOE) and Lawrence Livermore
 National Security, LLC (LLNS) for the operation of LLNL.  It has been
 approved for release under LLNL-CODE-403049.
 Unless otherwise noted, all files in this distribution are released
 under the Common Development and Distribution License (CDDL).
 Exceptions are noted within the associated source files.  See the file
 OPENSOLARIS.LICENSE for more information.
-Exceptions are noted within the associated source files headers and
+Refer to the git commit log for authoritative copyright attribution.
 by including a THIRDPARTYLICENSE file with the license terms.  A few
 notable exceptions and their respective licenses include:
  * Skein Checksum Implementation: module/icp/algs/skein/THIRDPARTYLICENSE
  * AES Implementation: module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman
  * AES Implementation: module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl
  * PBKDF2 Implementation: lib/libzfs/THIRDPARTYLICENSE.openssl
  * SPL Implementation: module/os/linux/spl/THIRDPARTYLICENSE.gplv2
  * GCM Implementation: module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.cryptogams
  * GCM Implementation: module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.openssl
  * GHASH Implementation: module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.cryptogams
  * GHASH Implementation: module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.openssl
 This product includes software developed by the OpenSSL Project for use
 in the OpenSSL Toolkit (http://www.openssl.org/)
 See the LICENSE and NOTICE for more information.
@@ -0,0 +1,24 @@
 This work was produced at the Lawrence Livermore National Laboratory
 (LLNL) under Contract No. DE-AC52-07NA27344 (Contract 44) between
 the U.S. Department of Energy (DOE) and Lawrence Livermore National
 Security, LLC (LLNS) for the operation of LLNL.
 This work was prepared as an account of work sponsored by an agency of
 the United States Government.  Neither the United States Government nor
 Lawrence Livermore National Security, LLC nor any of their employees,
 makes any warranty, express or implied, or assumes any liability or
 responsibility for the accuracy, completeness, or usefulness of any
 information, apparatus, product, or process disclosed, or represents
 that its use would not infringe privately-owned rights.
 Reference herein to any specific commercial products, process, or
 services by trade name, trademark, manufacturer or otherwise does
 not necessarily constitute or imply its endorsement, recommendation,
 or favoring by the United States Government or Lawrence Livermore
 National Security, LLC.  The views and opinions of authors expressed
 herein do not necessarily state or reflect those of the United States
 Government or Lawrence Livermore National Security, LLC, and shall
 not be used for advertising or product endorsement purposes.
 The precise terms and conditions for copying, distribution, and
 modification are specified in the file OPENSOLARIS.LICENSE.
@@ -1,10 +1,8 @@
-Meta:          1
+Meta:         1
-Name:          zfs
+Name:         zfs
-Branch:        1.0
+Branch:       1.0
-Version:       2.0.4
+Version:      0.7.13
-Release:       1
+Release:      1
-Release-Tags:  relext
+Release-Tags: relext
-License:       CDDL
+License:      CDDL
-Author:        OpenZFS
+Author:       OpenZFS on Linux
 Linux-Maximum: 5.11
 Linux-Minimum: 3.10
@@ -1,68 +1,32 @@
 ACLOCAL_AMFLAGS = -I config
-SUBDIRS = include
+include config/rpm.am
-if BUILD_LINUX
+include config/deb.am
-SUBDIRS += rpm
+include config/tgz.am
 endif
 SUBDIRS = include rpm
 if CONFIG_USER
-SUBDIRS += etc man scripts lib tests cmd contrib
+SUBDIRS += udev etc man scripts lib tests cmd contrib
 if BUILD_LINUX
 SUBDIRS += udev
 endif
 endif
 if CONFIG_KERNEL
 SUBDIRS += module
-extradir = $(prefix)/src/zfs-$(VERSION)
+extradir = @prefix@/src/zfs-$(VERSION)
 extra_HEADERS = zfs.release.in zfs_config.h.in
-if BUILD_LINUX
+kerneldir = @prefix@/src/zfs-$(VERSION)/$(LINUX_VERSION)
 kerneldir = $(prefix)/src/zfs-$(VERSION)/$(LINUX_VERSION)
 nodist_kernel_HEADERS = zfs.release zfs_config.h module/$(LINUX_SYMBOLS)
 endif
 endif
 AUTOMAKE_OPTIONS = foreign
 EXTRA_DIST  = autogen.sh copy-builtin
 EXTRA_DIST += cppcheck-suppressions.txt
 EXTRA_DIST += config/config.awk config/rpm.am config/deb.am config/tgz.am
-EXTRA_DIST += META AUTHORS COPYRIGHT LICENSE NEWS NOTICE README.md
+EXTRA_DIST += META DISCLAIMER COPYRIGHT README.markdown OPENSOLARIS.LICENSE
 EXTRA_DIST += CODE_OF_CONDUCT.md
 EXTRA_DIST += module/lua/README.zfs module/os/linux/spl/README.md
 # Include all the extra licensing information for modules
 EXTRA_DIST += module/icp/algs/skein/THIRDPARTYLICENSE
 EXTRA_DIST += module/icp/algs/skein/THIRDPARTYLICENSE.descrip
 EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman
 EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.gladman.descrip
 EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl
 EXTRA_DIST += module/icp/asm-x86_64/aes/THIRDPARTYLICENSE.openssl.descrip
 EXTRA_DIST += module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.cryptogams
 EXTRA_DIST += module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.cryptogams.descrip
 EXTRA_DIST += module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.openssl
 EXTRA_DIST += module/icp/asm-x86_64/modes/THIRDPARTYLICENSE.openssl.descrip
 EXTRA_DIST += module/os/linux/spl/THIRDPARTYLICENSE.gplv2
 EXTRA_DIST += module/os/linux/spl/THIRDPARTYLICENSE.gplv2.descrip
 EXTRA_DIST += module/zfs/THIRDPARTYLICENSE.cityhash
 EXTRA_DIST += module/zfs/THIRDPARTYLICENSE.cityhash.descrip
@CODE_COVERAGE_RULES@
 GITREV = include/zfs_gitrev.h
 PHONY = gitrev
 gitrev:
 	$(AM_V_GEN)$(top_srcdir)/scripts/make_gitrev.sh $(GITREV)
 all: gitrev
 # Double-colon rules are allowed; there are multiple independent definitions.
 maintainer-clean-local::
 	-$(RM) $(GITREV)
 distclean-local::
-	-$(RM) -R autom4te*.cache build
+	-$(RM) -R autom4te*.cache
 	-find . \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \
 		-o -name .pc -o -name .hg -o -name .git \) -prune -o \
 		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
@@ -73,192 +37,63 @@ distclean-local::
 		-o -name '*.gcno' \) \
 		-type f -print | xargs $(RM)
 all-local:
 	-[ -x ${top_builddir}/scripts/zfs-tests.sh ] && \
 	    ${top_builddir}/scripts/zfs-tests.sh -c
 dist-hook:
-	$(AM_V_GEN)$(top_srcdir)/scripts/make_gitrev.sh -D $(distdir) $(GITREV)
+	sed -i 's/Release:[[:print:]]*/Release:      $(RELEASE)/' \
 	$(SED) ${ac_inplace} -e 's/Release:[[:print:]]*/Release:      $(RELEASE)/' \
 		$(distdir)/META
-if BUILD_LINUX
+checkstyle: cstyle shellcheck flake8 commitcheck
 # For compatibility, create a matching spl-x.y.z directly which contains
 # symlinks to the updated header and object file locations.  These
 # compatibility links will be removed in the next major release.
 if CONFIG_KERNEL
 install-data-hook:
 	rm -rf $(DESTDIR)$(prefix)/src/spl-$(VERSION) && \
 	mkdir $(DESTDIR)$(prefix)/src/spl-$(VERSION) && \
 	cd $(DESTDIR)$(prefix)/src/spl-$(VERSION) && \
 	ln -s ../zfs-$(VERSION)/include/spl include && \
 	ln -s ../zfs-$(VERSION)/$(LINUX_VERSION) $(LINUX_VERSION) && \
 	ln -s ../zfs-$(VERSION)/zfs_config.h.in spl_config.h.in && \
 	ln -s ../zfs-$(VERSION)/zfs.release.in spl.release.in && \
 	cd $(DESTDIR)$(prefix)/src/zfs-$(VERSION)/$(LINUX_VERSION) && \
 	ln -fs zfs_config.h spl_config.h && \
 	ln -fs zfs.release spl.release
 endif
 endif
 PHONY += codecheck
 codecheck: cstyle shellcheck checkbashisms flake8 mancheck testscheck vcscheck
 PHONY += checkstyle
 checkstyle: codecheck commitcheck
 PHONY += commitcheck
 commitcheck:
 	@if git rev-parse --git-dir > /dev/null 2>&1; then \
-		${top_srcdir}/scripts/commitcheck.sh; \
+		scripts/commitcheck.sh; \
 	fi
 PHONY += cstyle
 cstyle:
-	@find ${top_srcdir} -name build -prune \
+	@find ${top_srcdir} -name '*.[hc]' ! -name 'zfs_config.*' \
-		-o -type f -name '*.[hc]' \
+		! -name '*.mod.c' -type f -exec scripts/cstyle.pl -cpP {} \+
 		! -name 'zfs_config.*' ! -name '*.mod.c' \
 		! -name 'opt_global.h' ! -name '*_if*.h' \
 		! -path './module/zstd/lib/*' \
 		-exec ${top_srcdir}/scripts/cstyle.pl -cpP {} \+
 filter_executable = -exec test -x '{}' \; -print
 PHONY += shellcheck
 shellcheck:
 	@if type shellcheck > /dev/null 2>&1; then \
-		shellcheck --exclude=SC1090 --exclude=SC1117 --format=gcc \
+		shellcheck --exclude=SC1090 --format=gcc scripts/paxcheck.sh \
-			$$(find ${top_srcdir}/scripts/*.sh -type f) \
+			scripts/zloop.sh \
-			$$(find ${top_srcdir}/cmd/zed/zed.d/*.sh -type f) \
+			scripts/zfs-tests.sh \
-			$$(find ${top_srcdir}/cmd/zpool/zpool.d/* \
+			scripts/zfs.sh \
-			-type f ${filter_executable}); \
+			scripts/commitcheck.sh \
-	else \
+			$$(find cmd/zed/zed.d/*.sh -type f) \
-		echo "skipping shellcheck because shellcheck is not installed"; \
+			$$(find cmd/zpool/zpool.d/* -executable); \
 	fi
 PHONY += checkabi storeabi
 checkabi: lib
 	$(MAKE) -C lib checkabi
 storeabi: lib
 	$(MAKE) -C lib storeabi
 PHONY += checkbashisms
 checkbashisms:
 	@if type checkbashisms > /dev/null 2>&1; then \
 		checkbashisms -n -p -x \
 			$$(find ${top_srcdir} \
 				-name '.git' -prune \
 				-o -name 'build' -prune \
 				-o -name 'tests' -prune \
 				-o -name 'config' -prune \
 				-o -name 'zed-functions.sh*' -prune \
 				-o -name 'zfs-import*' -prune \
 				-o -name 'zfs-mount*' -prune \
 				-o -name 'zfs-zed*' -prune \
 				-o -name 'smart' -prune \
 				-o -name 'paxcheck.sh' -prune \
 				-o -name 'make_gitrev.sh' -prune \
 				-o -name '90zfs' -prune \
 				-o -type f ! -name 'config*' \
 				! -name 'libtool' \
 			-exec sh -c 'awk "NR==1 && /\#\!.*bin\/sh.*/ {print FILENAME;}" "{}"' \;); \
 	else \
 		echo "skipping checkbashisms because checkbashisms is not installed"; \
 	fi
 PHONY += mancheck
 mancheck:
 	@if type mandoc > /dev/null 2>&1; then \
 		find ${top_srcdir}/man/man8 -type f -name 'zfs.8' \
 			-o -name 'zpool.8' -o -name 'zdb.8' \
 			-o -name 'zgenhostid.8' | \
 			xargs mandoc -Tlint -Werror; \
 	else \
 		echo "skipping mancheck because mandoc is not installed"; \
 	fi
 if BUILD_LINUX
 stat_fmt = -c '%A %n'
 else
 stat_fmt = -f '%Sp %N'
 endif
 PHONY += testscheck
 testscheck:
 	@find ${top_srcdir}/tests/zfs-tests -type f \
 		\( -name '*.ksh' -not ${filter_executable} \) -o \
 		\( -name '*.kshlib' ${filter_executable} \) -o \
 		\( -name '*.shlib' ${filter_executable} \) -o \
 		\( -name '*.cfg' ${filter_executable} \) | \
 		xargs -r stat ${stat_fmt} | \
 		awk '{c++; print} END {if(c>0) exit 1}'
 PHONY += vcscheck
 vcscheck:
 	@if git rev-parse --git-dir > /dev/null 2>&1; then \
 		git ls-files . --exclude-standard --others | \
 		awk '{c++; print} END {if(c>0) exit 1}' ; \
 	fi
 PHONY += lint
 lint: cppcheck paxcheck
 PHONY += cppcheck
 cppcheck:
 	@if type cppcheck > /dev/null 2>&1; then \
 		cppcheck --quiet --force --error-exitcode=2 --inline-suppr \
-			--suppressions-list=${top_srcdir}/cppcheck-suppressions.txt \
+			--suppressions-list=.github/suppressions.txt \
 			-UHAVE_SSE2 -UHAVE_AVX512F -UHAVE_UIO_ZEROCOPY \
-			${top_srcdir}; \
+			-UHAVE_DNLC ${top_srcdir}; \
 	else \
 		echo "skipping cppcheck because cppcheck is not installed"; \
 	fi
 PHONY += paxcheck
 paxcheck:
 	@if type scanelf > /dev/null 2>&1; then \
-		${top_srcdir}/scripts/paxcheck.sh ${top_builddir}; \
+		scripts/paxcheck.sh ${top_srcdir}; \
 	else \
 		echo "skipping paxcheck because scanelf is not installed"; \
 	fi
 PHONY += flake8
 flake8:
 	@if type flake8 > /dev/null 2>&1; then \
 		flake8 ${top_srcdir}; \
 	else \
 		echo "skipping flake8 because flake8 is not installed"; \
 	fi
 PHONY += ctags
 ctags:
 	$(RM) tags
-	find $(top_srcdir) -name '.?*' -prune \
+	find $(top_srcdir) -name .git -prune -o -name '*.[hc]' | xargs ctags
 		-o -type f -name '*.[hcS]' -print | xargs ctags -a
 PHONY += etags
 etags:
 	$(RM) TAGS
-	find $(top_srcdir) -name '.?*' -prune \
+	find $(top_srcdir) -name .pc -prune -o -name '*.[hc]' | xargs etags -a
 		-o -type f -name '*.[hcS]' -print | xargs etags -a
 PHONY += cscopelist
 cscopelist:
 	find $(top_srcdir) -name '.?*' -prune \
 		-o -type f -name '*.[hc]' -print >cscope.files
 PHONY += tags
 tags: ctags etags
 PHONY += pkg pkg-dkms pkg-kmod pkg-utils
 pkg: @DEFAULT_PACKAGE@
 pkg-dkms: @DEFAULT_PACKAGE@-dkms
 pkg-kmod: @DEFAULT_PACKAGE@-kmod
 pkg-utils: @DEFAULT_PACKAGE@-utils
 include config/rpm.am
 include config/deb.am
 include config/tgz.am
 .PHONY: $(PHONY)
@@ -1,3 +0,0 @@
 Descriptions of all releases can be found on github:
 https://github.com/openzfs/zfs/releases
@@ -1,16 +0,0 @@
 This work was produced under the auspices of the U.S. Department of Energy by
 Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
 This work was prepared as an account of work sponsored by an agency of the
 United States Government. Neither the United States Government nor Lawrence
 Livermore National Security, LLC, nor any of their employees makes any warranty,
 expressed or implied, or assumes any legal liability or responsibility for the
 accuracy, completeness, or usefulness of any information, apparatus, product, or
 process disclosed, or represents that its use would not infringe privately owned
 rights. Reference herein to any specific commercial product, process, or service
 by trade name, trademark, manufacturer, or otherwise does not necessarily
 constitute or imply its endorsement, recommendation, or favoring by the United
 States Government or Lawrence Livermore National Security, LLC. The views and
 opinions of authors expressed herein do not necessarily state or reflect those
 of the United States Government or Lawrence Livermore National Security, LLC,
 and shall not be used for advertising or product endorsement purposes.
@@ -0,0 +1,19 @@
 ![img](http://zfsonlinux.org/images/zfs-linux.png)
 ZFS on Linux is an advanced file system and volume manager which was originally
 developed for Solaris and is now maintained by the OpenZFS community.
 [![codecov](https://codecov.io/gh/zfsonlinux/zfs/branch/master/graph/badge.svg)](https://codecov.io/gh/zfsonlinux/zfs)
 # Official Resources
  * [Site](http://zfsonlinux.org)
  * [Wiki](https://github.com/zfsonlinux/zfs/wiki)
  * [Mailing lists](https://github.com/zfsonlinux/zfs/wiki/Mailing-Lists)
  * [OpenZFS site](http://open-zfs.org/)
 # Installation
 Full documentation for installing ZoL on your favorite Linux distribution can
 be found at [our site](http://zfsonlinux.org/).
 # Contribute & Develop
 We have a separate document with [contribution guidelines](./.github/CONTRIBUTING.md).
@@ -1,35 +0,0 @@
 ![img](https://openzfs.github.io/openzfs-docs/_static/img/logo/480px-Open-ZFS-Secondary-Logo-Colour-halfsize.png)
 OpenZFS is an advanced file system and volume manager which was originally
 developed for Solaris and is now maintained by the OpenZFS community.
 This repository contains the code for running OpenZFS on Linux and FreeBSD.
 [![codecov](https://codecov.io/gh/openzfs/zfs/branch/master/graph/badge.svg)](https://codecov.io/gh/openzfs/zfs)
 [![coverity](https://scan.coverity.com/projects/1973/badge.svg)](https://scan.coverity.com/projects/openzfs-zfs)
 # Official Resources
  * [Documentation](https://openzfs.github.io/openzfs-docs/) - for using and developing this repo
  * [ZoL Site](https://zfsonlinux.org) - Linux release info & links
  * [Mailing lists](https://openzfs.github.io/openzfs-docs/Project%20and%20Community/Mailing%20Lists.html)
  * [OpenZFS site](http://open-zfs.org/) - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
 # Installation
 Full documentation for installing OpenZFS on your favorite operating system can
 be found at the [Getting Started Page](https://openzfs.github.io/openzfs-docs/Getting%20Started/index.html).
 # Contribute & Develop
 We have a separate document with [contribution guidelines](./.github/CONTRIBUTING.md).
 We have a [Code of Conduct](./CODE_OF_CONDUCT.md).
 # Release
 OpenZFS is released under a CDDL license.
 For more details see the NOTICE, LICENSE and COPYRIGHT files; `UCRL-CODE-235197`
 # Supported Kernels
  * The `META` file contains the officially recognized supported Linux kernel versions.
  * Supported FreeBSD versions are 12-STABLE and 13-CURRENT.
@@ -1,15 +1,17 @@
 #!/bin/sh
 ### prepare
-#TEST_PREPARE_WATCHDOG="yes"
+#TEST_PREPARE_WATCHDOG="no"
-#TEST_PREPARE_SHARES="yes"
+
 ### SPLAT
 #TEST_SPLAT_SKIP="yes"
 #TEST_SPLAT_OPTIONS="-acvx"
 ### ztest
 #TEST_ZTEST_SKIP="yes"
 #TEST_ZTEST_TIMEOUT=1800
 #TEST_ZTEST_DIR="/var/tmp/"
 #TEST_ZTEST_OPTIONS="-V"
 #TEST_ZTEST_CORE_DIR="/mnt/zloop"
 ### zimport
 #TEST_ZIMPORT_SKIP="yes"
@@ -29,13 +31,9 @@
 ### zfs-tests.sh
 #TEST_ZFSTESTS_SKIP="yes"
 #TEST_ZFSTESTS_DIR="/mnt/"
 #TEST_ZFSTESTS_DISKS="vdb vdc vdd"
 #TEST_ZFSTESTS_DISKSIZE="8G"
 #TEST_ZFSTESTS_ITERS="1"
 #TEST_ZFSTESTS_OPTIONS="-vx"
 #TEST_ZFSTESTS_RUNFILE="linux.run"
 #TEST_ZFSTESTS_TAGS="functional"
 ### zfsstress
 #TEST_ZFSSTRESS_SKIP="yes"
@@ -44,7 +42,53 @@
 #TEST_ZFSSTRESS_RUNTIME=300
 #TEST_ZFSSTRESS_POOL="tank"
 #TEST_ZFSSTRESS_FS="fish"
 #TEST_ZFSSTRESS_FSOPT="-o overlay=on"
 #TEST_ZFSSTRESS_VDEV="/var/tmp/vdev"
 #TEST_ZFSSTRESS_DIR="/$TEST_ZFSSTRESS_POOL/$TEST_ZFSSTRESS_FS"
 #TEST_ZFSSTRESS_OPTIONS=""
 ### per-builder customization
 #
 # BB_NAME=builder-name <distribution-version-architecture-type>
 # - distribution=Amazon,Debian,Fedora,RHEL,SUSE,Ubuntu
 # - version=x.y
 # - architecture=x86_64,i686,arm,aarch64
 # - type=build,test
 #
 case "$BB_NAME" in
 Amazon*)
    # ZFS enabled xfstests fails to build
    TEST_XFSTESTS_SKIP="yes"
    ;;
 CentOS-7*)
    # ZFS enabled xfstests fails to build
    TEST_XFSTESTS_SKIP="yes"
    ;;
 CentOS-6*)
    ;;
 Debian*)
    ;;
 Fedora*)
    ;;
 RHEL*)
    ;;
 SUSE*)
    ;;
 Ubuntu-16.04*)
    # ZFS enabled xfstests fails to build
    TEST_XFSTESTS_SKIP="yes"
    ;;
 Ubuntu*)
    ;;
 *)
    ;;
 esac
 ###
 #
 # Disable the following test suites on 32-bit systems.
 #
 if [ $(getconf LONG_BIT) = "32" ]; then
    TEST_ZTEST_SKIP="yes"
    TEST_XFSTESTS_SKIP="yes"
    TEST_ZFSSTRESS_SKIP="yes"
 fi
@@ -1,4 +1,4 @@
 #!/bin/sh
-autoreconf -fiv || exit 1
+autoreconf -fiv
 rm -Rf autom4te.cache
@@ -1,10 +1,3 @@
-SUBDIRS  = zfs zpool zdb zhack zinject zstream zstreamdump ztest
+SUBDIRS  = zfs zpool zdb zhack zinject zstreamdump ztest zpios
-SUBDIRS += fsck_zfs vdev_id raidz_test zfs_ids_to_path
+SUBDIRS += mount_zfs fsck_zfs zvol_id vdev_id arcstat dbufstat zed
-
+SUBDIRS += arc_summary raidz_test zgenhostid
 if USING_PYTHON
 SUBDIRS += arcstat arc_summary dbufstat
 endif
 if BUILD_LINUX
 SUBDIRS += mount_zfs zed zgenhostid zvol_id zvol_wait
 endif
@@ -1 +0,0 @@
 arc_summary
@@ -1,13 +1 @@
-bin_SCRIPTS = arc_summary
+dist_bin_SCRIPTS = arc_summary.py
 CLEANFILES = arc_summary
 EXTRA_DIST = arc_summary2 arc_summary3
 if USING_PYTHON_2
 SCRIPT = arc_summary2
 else
 SCRIPT = arc_summary3
 endif
 arc_summary: $(SCRIPT)
 	cp $< $@
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/python
 #
 # $Id: arc_summary.pl,v 388:e27800740aa2 2011-07-08 02:53:29Z jhell $
 #
@@ -35,14 +35,12 @@
 # Note some of this code uses older code (eg getopt instead of argparse,
 # subprocess.Popen() instead of subprocess.run()) because we need to support
 # some very old versions of Python.
 #
 """Print statistics on the ZFS Adjustable Replacement Cache (ARC)
 Provides basic information on the ARC, its efficiency, the L2ARC (if present),
 the Data Management Unit (DMU), Virtual Devices (VDEVs), and tunables. See the
 in-source documentation and code at
-https://github.com/openzfs/zfs/blob/master/module/zfs/arc.c for details.
+https://github.com/zfsonlinux/zfs/blob/master/module/zfs/arc.c for details.
 """
 import getopt
@@ -54,50 +52,6 @@ import errno
 from subprocess import Popen, PIPE
 from decimal import Decimal as D
 if sys.platform.startswith('freebsd'):
    # Requires py27-sysctl on FreeBSD
    import sysctl
    def is_value(ctl):
        return ctl.type != sysctl.CTLTYPE_NODE
    def load_kstats(namespace):
        """Collect information on a specific subsystem of the ARC"""
        base = 'kstat.zfs.misc.%s.' % namespace
        fmt = lambda kstat: (kstat.name, D(kstat.value))
        kstats = sysctl.filter(base)
        return [fmt(kstat) for kstat in kstats if is_value(kstat)]
    def load_tunables():
        ctls = sysctl.filter('vfs.zfs')
        return dict((ctl.name, ctl.value) for ctl in ctls if is_value(ctl))
 elif sys.platform.startswith('linux'):
    def load_kstats(namespace):
        """Collect information on a specific subsystem of the ARC"""
        kstat = 'kstat.zfs.misc.%s.%%s' % namespace
        path = '/proc/spl/kstat/zfs/%s' % namespace
        with open(path) as f:
            entries = [line.strip().split() for line in f][2:] # Skip header
        return [(kstat % name, D(value)) for name, _, value in entries]
    def load_tunables():
        basepath = '/sys/module/zfs/parameters'
        tunables = {}
        for name in os.listdir(basepath):
            if not name:
                continue
            path = '%s/%s' % (basepath, name)
            with open(path) as f:
                value = f.read()
            tunables[name] = value.strip()
        return tunables
 show_tunable_descriptions = False
 alternate_tunable_layout = False
@@ -120,10 +74,24 @@ def get_Kstat():
    of the same name.
    """
    def load_proc_kstats(fn, namespace):
        """Collect information on a specific subsystem of the ARC"""
        kstats = [line.strip() for line in open(fn)]
        del kstats[0:2]
        for kstat in kstats:
            kstat = kstat.strip()
            name, _, value = kstat.split()
            Kstat[namespace + name] = D(value)
    Kstat = {}
-    Kstat.update(load_kstats('arcstats'))
+    load_proc_kstats('/proc/spl/kstat/zfs/arcstats',
-    Kstat.update(load_kstats('zfetchstats'))
+                     'kstat.zfs.misc.arcstats.')
-    Kstat.update(load_kstats('vdev_cache_stats'))
+    load_proc_kstats('/proc/spl/kstat/zfs/zfetchstats',
                     'kstat.zfs.misc.zfetchstats.')
    load_proc_kstats('/proc/spl/kstat/zfs/vdev_cache_stats',
                     'kstat.zfs.misc.vdev_cache_stats.')
    return Kstat
@@ -236,10 +204,6 @@ def get_arc_summary(Kstat):
    arc_size = Kstat["kstat.zfs.misc.arcstats.size"]
    mru_size = Kstat["kstat.zfs.misc.arcstats.mru_size"]
    mfu_size = Kstat["kstat.zfs.misc.arcstats.mfu_size"]
    meta_limit = Kstat["kstat.zfs.misc.arcstats.arc_meta_limit"]
    meta_size = Kstat["kstat.zfs.misc.arcstats.arc_meta_used"]
    dnode_limit = Kstat["kstat.zfs.misc.arcstats.arc_dnode_limit"]
    dnode_size = Kstat["kstat.zfs.misc.arcstats.dnode_size"]
    target_max_size = Kstat["kstat.zfs.misc.arcstats.c_max"]
    target_min_size = Kstat["kstat.zfs.misc.arcstats.c_min"]
    target_size = Kstat["kstat.zfs.misc.arcstats.c"]
@@ -264,22 +228,6 @@ def get_arc_summary(Kstat):
        'per': fPerc(target_size, target_max_size),
        'num': fBytes(target_size),
    }
    output['arc_sizing']['meta_limit'] = {
        'per': fPerc(meta_limit, target_max_size),
        'num': fBytes(meta_limit),
    }
    output['arc_sizing']['meta_size'] = {
        'per': fPerc(meta_size, meta_limit),
        'num': fBytes(meta_size),
    }
    output['arc_sizing']['dnode_limit'] = {
        'per': fPerc(dnode_limit, meta_limit),
        'num': fBytes(dnode_limit),
    }
    output['arc_sizing']['dnode_size'] = {
        'per': fPerc(dnode_size, dnode_limit),
        'num': fBytes(dnode_size),
    }
    # ARC Hash Breakdown
    output['arc_hash_break'] = {}
@@ -385,26 +333,6 @@ def _arc_summary(Kstat):
        arc['arc_size_break']['frequently_used_cache_size']['num'],
        )
    )
    sys.stdout.write("\tMetadata Size (Hard Limit):\t%s\t%s\n" % (
        arc['arc_sizing']['meta_limit']['per'],
        arc['arc_sizing']['meta_limit']['num'],
        )
    )
    sys.stdout.write("\tMetadata Size:\t\t\t%s\t%s\n" % (
        arc['arc_sizing']['meta_size']['per'],
        arc['arc_sizing']['meta_size']['num'],
        )
    )
    sys.stdout.write("\tDnode Size (Hard Limit):\t%s\t%s\n" % (
        arc['arc_sizing']['dnode_limit']['per'],
        arc['arc_sizing']['dnode_limit']['num'],
        )
    )
    sys.stdout.write("\tDnode Size:\t\t\t%s\t%s\n" % (
        arc['arc_sizing']['dnode_size']['per'],
        arc['arc_sizing']['dnode_size']['num'],
        )
    )
    sys.stdout.write("\n")
@@ -951,7 +879,14 @@ def _tunable_summary(Kstat):
    global show_tunable_descriptions
    global alternate_tunable_layout
-    tunables = load_tunables()
+    names = os.listdir("/sys/module/zfs/parameters/")
    values = {}
    for name in names:
        with open("/sys/module/zfs/parameters/" + name) as f:
            value = f.read()
        values[name] = value.strip()
    descriptions = {}
    if show_tunable_descriptions:
@@ -989,17 +924,22 @@ def _tunable_summary(Kstat):
            sys.stderr.write("Tunable descriptions will be disabled.\n")
    sys.stdout.write("ZFS Tunables:\n")
    names.sort()
    if alternate_tunable_layout:
        fmt = "\t%s=%s\n"
    else:
        fmt = "\t%-50s%s\n"
-    for name in sorted(tunables.keys()):
+    for name in names:
        if not name:
            continue
        if show_tunable_descriptions and name in descriptions:
            sys.stdout.write("\t# %s\n" % descriptions[name])
-        sys.stdout.write(fmt % (name, tunables[name]))
+        sys.stdout.write(fmt % (name, values[name]))
 unSub = [
@@ -1025,7 +965,7 @@ def zfs_header():
 def usage():
    """Print usage information"""
-    sys.stdout.write("Usage: arc_summary [-h] [-a] [-d] [-p PAGE]\n\n")
+    sys.stdout.write("Usage: arc_summary.py [-h] [-a] [-d] [-p PAGE]\n\n")
    sys.stdout.write("\t -h, --help           : "
                     "Print this help message and exit\n")
    sys.stdout.write("\t -a, --alternate      : "
@@ -1038,10 +978,10 @@ def usage():
                     "should be an integer between 1 and " +
                     str(len(unSub)) + "\n\n")
    sys.stdout.write("Examples:\n")
-    sys.stdout.write("\tarc_summary -a\n")
+    sys.stdout.write("\tarc_summary.py -a\n")
-    sys.stdout.write("\tarc_summary -p 4\n")
+    sys.stdout.write("\tarc_summary.py -p 4\n")
-    sys.stdout.write("\tarc_summary -ad\n")
+    sys.stdout.write("\tarc_summary.py -ad\n")
-    sys.stdout.write("\tarc_summary --page=2\n")
+    sys.stdout.write("\tarc_summary.py --page=2\n")
 def main():
@@ -1,938 +0,0 @@
 #!/usr/bin/env python3
 #
 # Copyright (c) 2008 Ben Rockwood <benr@cuddletech.com>,
 # Copyright (c) 2010 Martin Matuska <mm@FreeBSD.org>,
 # Copyright (c) 2010-2011 Jason J. Hellenthal <jhell@DataIX.net>,
 # Copyright (c) 2017 Scot W. Stevenson <scot.stevenson@gmail.com>
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
 # are met:
 #
 # 1. Redistributions of source code must retain the above copyright
 #    notice, this list of conditions and the following disclaimer.
 # 2. Redistributions in binary form must reproduce the above copyright
 #    notice, this list of conditions and the following disclaimer in the
 #    documentation and/or other materials provided with the distribution.
 #
 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 # ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 # SUCH DAMAGE.
 """Print statistics on the ZFS ARC Cache and other information
 Provides basic information on the ARC, its efficiency, the L2ARC (if present),
 the Data Management Unit (DMU), Virtual Devices (VDEVs), and tunables. See
 the in-source documentation and code at
 https://github.com/openzfs/zfs/blob/master/module/zfs/arc.c for details.
 The original introduction to arc_summary can be found at
 http://cuddletech.com/?p=454
 """
 import argparse
 import os
 import subprocess
 import sys
 import time
 DESCRIPTION = 'Print ARC and other statistics for OpenZFS'
 INDENT = ' '*8
 LINE_LENGTH = 72
 DATE_FORMAT = '%a %b %d %H:%M:%S %Y'
 TITLE = 'ZFS Subsystem Report'
 SECTIONS = 'arc archits dmu l2arc spl tunables vdev zil'.split()
 SECTION_HELP = 'print info from one section ('+' '.join(SECTIONS)+')'
 # Tunables and SPL are handled separately because they come from
 # different sources
 SECTION_PATHS = {'arc': 'arcstats',
                 'dmu': 'dmu_tx',
                 'l2arc': 'arcstats',  # L2ARC stuff lives in arcstats
                 'vdev': 'vdev_cache_stats',
                 'xuio': 'xuio_stats',
                 'zfetch': 'zfetchstats',
                 'zil': 'zil'}
 parser = argparse.ArgumentParser(description=DESCRIPTION)
 parser.add_argument('-a', '--alternate', action='store_true', default=False,
                    help='use alternate formatting for tunables and SPL',
                    dest='alt')
 parser.add_argument('-d', '--description', action='store_true', default=False,
                    help='print descriptions with tunables and SPL',
                    dest='desc')
 parser.add_argument('-g', '--graph', action='store_true', default=False,
                    help='print graph on ARC use and exit', dest='graph')
 parser.add_argument('-p', '--page', type=int, dest='page',
                    help='print page by number (DEPRECATED, use "-s")')
 parser.add_argument('-r', '--raw', action='store_true', default=False,
                    help='dump all available data with minimal formatting',
                    dest='raw')
 parser.add_argument('-s', '--section', dest='section', help=SECTION_HELP)
 ARGS = parser.parse_args()
 if sys.platform.startswith('freebsd'):
    # Requires py36-sysctl on FreeBSD
    import sysctl
    VDEV_CACHE_SIZE = 'vdev.cache_size'
    def is_value(ctl):
        return ctl.type != sysctl.CTLTYPE_NODE
    def namefmt(ctl, base='vfs.zfs.'):
        # base is removed from the name
        cut = len(base)
        return ctl.name[cut:]
    def load_kstats(section):
        base = 'kstat.zfs.misc.{section}.'.format(section=section)
        fmt = lambda kstat: '{name} : {value}'.format(name=namefmt(kstat, base),
                                                      value=kstat.value)
        kstats = sysctl.filter(base)
        return [fmt(kstat) for kstat in kstats if is_value(kstat)]
    def get_params(base):
        ctls = sysctl.filter(base)
        return {namefmt(ctl): str(ctl.value) for ctl in ctls if is_value(ctl)}
    def get_tunable_params():
        return get_params('vfs.zfs')
    def get_vdev_params():
        return get_params('vfs.zfs.vdev')
    def get_version_impl(request):
        # FreeBSD reports versions for zpl and spa instead of zfs and spl.
        name = {'zfs': 'zpl',
                'spl': 'spa'}[request]
        mib = 'vfs.zfs.version.{}'.format(name)
        version = sysctl.filter(mib)[0].value
        return '{} version {}'.format(name, version)
    def get_descriptions(_request):
        ctls = sysctl.filter('vfs.zfs')
        return {namefmt(ctl): ctl.description for ctl in ctls if is_value(ctl)}
 elif sys.platform.startswith('linux'):
    KSTAT_PATH = '/proc/spl/kstat/zfs'
    SPL_PATH = '/sys/module/spl/parameters'
    TUNABLES_PATH = '/sys/module/zfs/parameters'
    VDEV_CACHE_SIZE = 'zfs_vdev_cache_size'
    def load_kstats(section):
        path = os.path.join(KSTAT_PATH, section)
        with open(path) as f:
            return list(f)[2:] # Get rid of header
    def get_params(basepath):
        """Collect information on the Solaris Porting Layer (SPL) or the
        tunables, depending on the PATH given. Does not check if PATH is
        legal.
        """
        result = {}
        for name in os.listdir(basepath):
            path = os.path.join(basepath, name)
            with open(path) as f:
                value = f.read()
                result[name] = value.strip()
        return result
    def get_spl_params():
        return get_params(SPL_PATH)
    def get_tunable_params():
        return get_params(TUNABLES_PATH)
    def get_vdev_params():
        return get_params(TUNABLES_PATH)
    def get_version_impl(request):
        # The original arc_summary called /sbin/modinfo/{spl,zfs} to get
        # the version information. We switch to /sys/module/{spl,zfs}/version
        # to make sure we get what is really loaded in the kernel
        command = ["cat", "/sys/module/{0}/version".format(request)]
        req = request.upper()
        # The recommended way to do this is with subprocess.run(). However,
        # some installed versions of Python are < 3.5, so we offer them
        # the option of doing it the old way (for now)
        if 'run' in dir(subprocess):
            info = subprocess.run(command, stdout=subprocess.PIPE,
                                  universal_newlines=True)
            version = info.stdout.strip()
        else:
            info = subprocess.check_output(command, universal_newlines=True)
            version = info.strip()
        return version
    def get_descriptions(request):
        """Get the descriptions of the Solaris Porting Layer (SPL) or the
        tunables, return with minimal formatting.
        """
        if request not in ('spl', 'zfs'):
            print('ERROR: description of "{0}" requested)'.format(request))
            sys.exit(1)
        descs = {}
        target_prefix = 'parm:'
        # We would prefer to do this with /sys/modules -- see the discussion at
        # get_version() -- but there isn't a way to get the descriptions from
        # there, so we fall back on modinfo
        command = ["/sbin/modinfo", request, "-0"]
        # The recommended way to do this is with subprocess.run(). However,
        # some installed versions of Python are < 3.5, so we offer them
        # the option of doing it the old way (for now)
        info = ''
        try:
            if 'run' in dir(subprocess):
                info = subprocess.run(command, stdout=subprocess.PIPE,
                                      universal_newlines=True)
                raw_output = info.stdout.split('\0')
            else:
                info = subprocess.check_output(command,
                                               universal_newlines=True)
                raw_output = info.split('\0')
        except subprocess.CalledProcessError:
            print("Error: Descriptions not available",
                  "(can't access kernel module)")
            sys.exit(1)
        for line in raw_output:
            if not line.startswith(target_prefix):
                continue
            line = line[len(target_prefix):].strip()
            name, raw_desc = line.split(':', 1)
            desc = raw_desc.rsplit('(', 1)[0]
            if desc == '':
                desc = '(No description found)'
            descs[name.strip()] = desc.strip()
        return descs
 def cleanup_line(single_line):
    """Format a raw line of data from /proc and isolate the name value
    part, returning a tuple with each. Currently, this gets rid of the
    middle '4'. For example "arc_no_grow    4    0" returns the tuple
    ("arc_no_grow", "0").
    """
    name, _, value = single_line.split()
    return name, value
 def draw_graph(kstats_dict):
    """Draw a primitive graph representing the basic information on the
    ARC -- its size and the proportion used by MFU and MRU -- and quit.
    We use max size of the ARC to calculate how full it is. This is a
    very rough representation.
    """
    arc_stats = isolate_section('arcstats', kstats_dict)
    GRAPH_INDENT = ' '*4
    GRAPH_WIDTH = 60
    arc_size = f_bytes(arc_stats['size'])
    arc_perc = f_perc(arc_stats['size'], arc_stats['c_max'])
    mfu_size = f_bytes(arc_stats['mfu_size'])
    mru_size = f_bytes(arc_stats['mru_size'])
    meta_limit = f_bytes(arc_stats['arc_meta_limit'])
    meta_size = f_bytes(arc_stats['arc_meta_used'])
    dnode_limit = f_bytes(arc_stats['arc_dnode_limit'])
    dnode_size = f_bytes(arc_stats['dnode_size'])
    info_form = ('ARC: {0} ({1})  MFU: {2}  MRU: {3}  META: {4} ({5}) '
                 'DNODE {6} ({7})')
    info_line = info_form.format(arc_size, arc_perc, mfu_size, mru_size,
                                 meta_size, meta_limit, dnode_size,
                                 dnode_limit)
    info_spc = ' '*int((GRAPH_WIDTH-len(info_line))/2)
    info_line = GRAPH_INDENT+info_spc+info_line
    graph_line = GRAPH_INDENT+'+'+('-'*(GRAPH_WIDTH-2))+'+'
    mfu_perc = float(int(arc_stats['mfu_size'])/int(arc_stats['c_max']))
    mru_perc = float(int(arc_stats['mru_size'])/int(arc_stats['c_max']))
    arc_perc = float(int(arc_stats['size'])/int(arc_stats['c_max']))
    total_ticks = float(arc_perc)*GRAPH_WIDTH
    mfu_ticks = mfu_perc*GRAPH_WIDTH
    mru_ticks = mru_perc*GRAPH_WIDTH
    other_ticks = total_ticks-(mfu_ticks+mru_ticks)
    core_form = 'F'*int(mfu_ticks)+'R'*int(mru_ticks)+'O'*int(other_ticks)
    core_spc = ' '*(GRAPH_WIDTH-(2+len(core_form)))
    core_line = GRAPH_INDENT+'|'+core_form+core_spc+'|'
    for line in ('', info_line, graph_line, core_line, graph_line, ''):
        print(line)
 def f_bytes(byte_string):
    """Return human-readable representation of a byte value in
    powers of 2 (eg "KiB" for "kibibytes", etc) to two decimal
    points. Values smaller than one KiB are returned without
    decimal points. Note "bytes" is a reserved keyword.
    """
    prefixes = ([2**80, "YiB"],   # yobibytes (yotta)
                [2**70, "ZiB"],   # zebibytes (zetta)
                [2**60, "EiB"],   # exbibytes (exa)
                [2**50, "PiB"],   # pebibytes (peta)
                [2**40, "TiB"],   # tebibytes (tera)
                [2**30, "GiB"],   # gibibytes (giga)
                [2**20, "MiB"],   # mebibytes (mega)
                [2**10, "KiB"])   # kibibytes (kilo)
    bites = int(byte_string)
    if bites >= 2**10:
        for limit, unit in prefixes:
            if bites >= limit:
                value = bites / limit
                break
        result = '{0:.1f} {1}'.format(value, unit)
    else:
        result = '{0} Bytes'.format(bites)
    return result
 def f_hits(hits_string):
    """Create a human-readable representation of the number of hits.
    The single-letter symbols used are SI to avoid the confusion caused
    by the different "short scale" and "long scale" representations in
    English, which use the same words for different values. See
    https://en.wikipedia.org/wiki/Names_of_large_numbers and:
    https://physics.nist.gov/cuu/Units/prefixes.html
    """
    numbers = ([10**24, 'Y'],  # yotta (septillion)
               [10**21, 'Z'],  # zetta (sextillion)
               [10**18, 'E'],  # exa   (quintrillion)
               [10**15, 'P'],  # peta  (quadrillion)
               [10**12, 'T'],  # tera  (trillion)
               [10**9, 'G'],   # giga  (billion)
               [10**6, 'M'],   # mega  (million)
               [10**3, 'k'])   # kilo  (thousand)
    hits = int(hits_string)
    if hits >= 1000:
        for limit, symbol in numbers:
            if hits >= limit:
                value = hits/limit
                break
        result = "%0.1f%s" % (value, symbol)
    else:
        result = "%d" % hits
    return result
 def f_perc(value1, value2):
    """Calculate percentage and return in human-readable form. If
    rounding produces the result '0.0' though the first number is
    not zero, include a 'less-than' symbol to avoid confusion.
    Division by zero is handled by returning 'n/a'; no error
    is called.
    """
    v1 = float(value1)
    v2 = float(value2)
    try:
        perc = 100 * v1/v2
    except ZeroDivisionError:
        result = 'n/a'
    else:
        result = '{0:0.1f} %'.format(perc)
    if result == '0.0 %' and v1 > 0:
        result = '< 0.1 %'
    return result
 def format_raw_line(name, value):
    """For the --raw option for the tunable and SPL outputs, decide on the
    correct formatting based on the --alternate flag.
    """
    if ARGS.alt:
        result = '{0}{1}={2}'.format(INDENT, name, value)
    else:
        # Right-align the value within the line length if it fits,
        # otherwise just separate it from the name by a single space.
        fit = LINE_LENGTH - len(INDENT) - len(name)
        overflow = len(value) + 1
        w = max(fit, overflow)
        result = '{0}{1}{2:>{w}}'.format(INDENT, name, value, w=w)
    return result
 def get_kstats():
    """Collect information on the ZFS subsystem. The step does not perform any
    further processing, giving us the option to only work on what is actually
    needed. The name "kstat" is a holdover from the Solaris utility of the same
    name.
    """
    result = {}
    for section in SECTION_PATHS.values():
        if section not in result:
            result[section] = load_kstats(section)
    return result
 def get_version(request):
    """Get the version number of ZFS or SPL on this machine for header.
    Returns an error string, but does not raise an error, if we can't
    get the ZFS/SPL version.
    """
    if request not in ('spl', 'zfs'):
        error_msg = '(ERROR: "{0}" requested)'.format(request)
        return error_msg
    return get_version_impl(request)
 def print_header():
    """Print the initial heading with date and time as well as info on the
    kernel and ZFS versions. This is not called for the graph.
    """
    # datetime is now recommended over time but we keep the exact formatting
    # from the older version of arc_summary in case there are scripts
    # that expect it in this way
    daydate = time.strftime(DATE_FORMAT)
    spc_date = LINE_LENGTH-len(daydate)
    sys_version = os.uname()
    sys_msg = sys_version.sysname+' '+sys_version.release
    zfs = get_version('zfs')
    spc_zfs = LINE_LENGTH-len(zfs)
    machine_msg = 'Machine: '+sys_version.nodename+' ('+sys_version.machine+')'
    spl = get_version('spl')
    spc_spl = LINE_LENGTH-len(spl)
    print('\n'+('-'*LINE_LENGTH))
    print('{0:<{spc}}{1}'.format(TITLE, daydate, spc=spc_date))
    print('{0:<{spc}}{1}'.format(sys_msg, zfs, spc=spc_zfs))
    print('{0:<{spc}}{1}\n'.format(machine_msg, spl, spc=spc_spl))
 def print_raw(kstats_dict):
    """Print all available data from the system in a minimally sorted format.
    This can be used as a source to be piped through 'grep'.
    """
    sections = sorted(kstats_dict.keys())
    for section in sections:
        print('\n{0}:'.format(section.upper()))
        lines = sorted(kstats_dict[section])
        for line in lines:
            name, value = cleanup_line(line)
            print(format_raw_line(name, value))
    # Tunables and SPL must be handled separately because they come from a
    # different source and have descriptions the user might request
    print()
    section_spl()
    section_tunables()
 def isolate_section(section_name, kstats_dict):
    """From the complete information on all sections, retrieve only those
    for one section.
    """
    try:
        section_data = kstats_dict[section_name]
    except KeyError:
        print('ERROR: Data on {0} not available'.format(section_data))
        sys.exit(1)
    section_dict = dict(cleanup_line(l) for l in section_data)
    return section_dict
 # Formatted output helper functions
 def prt_1(text, value):
    """Print text and one value, no indent"""
    spc = ' '*(LINE_LENGTH-(len(text)+len(value)))
    print('{0}{spc}{1}'.format(text, value, spc=spc))
 def prt_i1(text, value):
    """Print text and one value, with indent"""
    spc = ' '*(LINE_LENGTH-(len(INDENT)+len(text)+len(value)))
    print(INDENT+'{0}{spc}{1}'.format(text, value, spc=spc))
 def prt_2(text, value1, value2):
    """Print text and two values, no indent"""
    values = '{0:>9}  {1:>9}'.format(value1, value2)
    spc = ' '*(LINE_LENGTH-(len(text)+len(values)+2))
    print('{0}{spc}  {1}'.format(text, values, spc=spc))
 def prt_i2(text, value1, value2):
    """Print text and two values, with indent"""
    values = '{0:>9}  {1:>9}'.format(value1, value2)
    spc = ' '*(LINE_LENGTH-(len(INDENT)+len(text)+len(values)+2))
    print(INDENT+'{0}{spc}  {1}'.format(text, values, spc=spc))
 # The section output concentrates on important parameters instead of
 # being exhaustive (that is what the --raw parameter is for)
 def section_arc(kstats_dict):
    """Give basic information on the ARC, MRU and MFU. This is the first
    and most used section.
    """
    arc_stats = isolate_section('arcstats', kstats_dict)
    throttle = arc_stats['memory_throttle_count']
    if throttle == '0':
        health = 'HEALTHY'
    else:
        health = 'THROTTLED'
    prt_1('ARC status:', health)
    prt_i1('Memory throttle count:', throttle)
    print()
    arc_size = arc_stats['size']
    arc_target_size = arc_stats['c']
    arc_max = arc_stats['c_max']
    arc_min = arc_stats['c_min']
    mfu_size = arc_stats['mfu_size']
    mru_size = arc_stats['mru_size']
    meta_limit = arc_stats['arc_meta_limit']
    meta_size = arc_stats['arc_meta_used']
    dnode_limit = arc_stats['arc_dnode_limit']
    dnode_size = arc_stats['dnode_size']
    target_size_ratio = '{0}:1'.format(int(arc_max) // int(arc_min))
    prt_2('ARC size (current):',
          f_perc(arc_size, arc_max), f_bytes(arc_size))
    prt_i2('Target size (adaptive):',
           f_perc(arc_target_size, arc_max), f_bytes(arc_target_size))
    prt_i2('Min size (hard limit):',
           f_perc(arc_min, arc_max), f_bytes(arc_min))
    prt_i2('Max size (high water):',
           target_size_ratio, f_bytes(arc_max))
    caches_size = int(mfu_size)+int(mru_size)
    prt_i2('Most Frequently Used (MFU) cache size:',
           f_perc(mfu_size, caches_size), f_bytes(mfu_size))
    prt_i2('Most Recently Used (MRU) cache size:',
           f_perc(mru_size, caches_size), f_bytes(mru_size))
    prt_i2('Metadata cache size (hard limit):',
           f_perc(meta_limit, arc_max), f_bytes(meta_limit))
    prt_i2('Metadata cache size (current):',
           f_perc(meta_size, meta_limit), f_bytes(meta_size))
    prt_i2('Dnode cache size (hard limit):',
           f_perc(dnode_limit, meta_limit), f_bytes(dnode_limit))
    prt_i2('Dnode cache size (current):',
           f_perc(dnode_size, dnode_limit), f_bytes(dnode_size))
    print()
    print('ARC hash breakdown:')
    prt_i1('Elements max:', f_hits(arc_stats['hash_elements_max']))
    prt_i2('Elements current:',
           f_perc(arc_stats['hash_elements'], arc_stats['hash_elements_max']),
           f_hits(arc_stats['hash_elements']))
    prt_i1('Collisions:', f_hits(arc_stats['hash_collisions']))
    prt_i1('Chain max:', f_hits(arc_stats['hash_chain_max']))
    prt_i1('Chains:', f_hits(arc_stats['hash_chains']))
    print()
    print('ARC misc:')
    prt_i1('Deleted:', f_hits(arc_stats['deleted']))
    prt_i1('Mutex misses:', f_hits(arc_stats['mutex_miss']))
    prt_i1('Eviction skips:', f_hits(arc_stats['evict_skip']))
    print()
 def section_archits(kstats_dict):
    """Print information on how the caches are accessed ("arc hits").
    """
    arc_stats = isolate_section('arcstats', kstats_dict)
    all_accesses = int(arc_stats['hits'])+int(arc_stats['misses'])
    actual_hits = int(arc_stats['mfu_hits'])+int(arc_stats['mru_hits'])
    prt_1('ARC total accesses (hits + misses):', f_hits(all_accesses))
    ta_todo = (('Cache hit ratio:', arc_stats['hits']),
               ('Cache miss ratio:', arc_stats['misses']),
               ('Actual hit ratio (MFU + MRU hits):', actual_hits))
    for title, value in ta_todo:
        prt_i2(title, f_perc(value, all_accesses), f_hits(value))
    dd_total = int(arc_stats['demand_data_hits']) +\
        int(arc_stats['demand_data_misses'])
    prt_i2('Data demand efficiency:',
           f_perc(arc_stats['demand_data_hits'], dd_total),
           f_hits(dd_total))
    dp_total = int(arc_stats['prefetch_data_hits']) +\
        int(arc_stats['prefetch_data_misses'])
    prt_i2('Data prefetch efficiency:',
           f_perc(arc_stats['prefetch_data_hits'], dp_total),
           f_hits(dp_total))
    known_hits = int(arc_stats['mfu_hits']) +\
        int(arc_stats['mru_hits']) +\
        int(arc_stats['mfu_ghost_hits']) +\
        int(arc_stats['mru_ghost_hits'])
    anon_hits = int(arc_stats['hits'])-known_hits
    print()
    print('Cache hits by cache type:')
    cl_todo = (('Most frequently used (MFU):', arc_stats['mfu_hits']),
               ('Most recently used (MRU):', arc_stats['mru_hits']),
               ('Most frequently used (MFU) ghost:',
                arc_stats['mfu_ghost_hits']),
               ('Most recently used (MRU) ghost:',
                arc_stats['mru_ghost_hits']))
    for title, value in cl_todo:
        prt_i2(title, f_perc(value, arc_stats['hits']), f_hits(value))
    # For some reason, anon_hits can turn negative, which is weird. Until we
    # have figured out why this happens, we just hide the problem, following
    # the behavior of the original arc_summary.
    if anon_hits >= 0:
        prt_i2('Anonymously used:',
               f_perc(anon_hits, arc_stats['hits']), f_hits(anon_hits))
    print()
    print('Cache hits by data type:')
    dt_todo = (('Demand data:', arc_stats['demand_data_hits']),
               ('Demand prefetch data:', arc_stats['prefetch_data_hits']),
               ('Demand metadata:', arc_stats['demand_metadata_hits']),
               ('Demand prefetch metadata:',
                arc_stats['prefetch_metadata_hits']))
    for title, value in dt_todo:
        prt_i2(title, f_perc(value, arc_stats['hits']), f_hits(value))
    print()
    print('Cache misses by data type:')
    dm_todo = (('Demand data:', arc_stats['demand_data_misses']),
               ('Demand prefetch data:',
                arc_stats['prefetch_data_misses']),
               ('Demand metadata:', arc_stats['demand_metadata_misses']),
               ('Demand prefetch metadata:',
                arc_stats['prefetch_metadata_misses']))
    for title, value in dm_todo:
        prt_i2(title, f_perc(value, arc_stats['misses']), f_hits(value))
    print()
 def section_dmu(kstats_dict):
    """Collect information on the DMU"""
    zfetch_stats = isolate_section('zfetchstats', kstats_dict)
    zfetch_access_total = int(zfetch_stats['hits'])+int(zfetch_stats['misses'])
    prt_1('DMU prefetch efficiency:', f_hits(zfetch_access_total))
    prt_i2('Hit ratio:', f_perc(zfetch_stats['hits'], zfetch_access_total),
           f_hits(zfetch_stats['hits']))
    prt_i2('Miss ratio:', f_perc(zfetch_stats['misses'], zfetch_access_total),
           f_hits(zfetch_stats['misses']))
    print()
 def section_l2arc(kstats_dict):
    """Collect information on L2ARC device if present. If not, tell user
    that we're skipping the section.
    """
    # The L2ARC statistics live in the same section as the normal ARC stuff
    arc_stats = isolate_section('arcstats', kstats_dict)
    if arc_stats['l2_size'] == '0':
        print('L2ARC not detected, skipping section\n')
        return
    l2_errors = int(arc_stats['l2_writes_error']) +\
        int(arc_stats['l2_cksum_bad']) +\
        int(arc_stats['l2_io_error'])
    l2_access_total = int(arc_stats['l2_hits'])+int(arc_stats['l2_misses'])
    health = 'HEALTHY'
    if l2_errors > 0:
        health = 'DEGRADED'
    prt_1('L2ARC status:', health)
    l2_todo = (('Low memory aborts:', 'l2_abort_lowmem'),
               ('Free on write:', 'l2_free_on_write'),
               ('R/W clashes:', 'l2_rw_clash'),
               ('Bad checksums:', 'l2_cksum_bad'),
               ('I/O errors:', 'l2_io_error'))
    for title, value in l2_todo:
        prt_i1(title, f_hits(arc_stats[value]))
    print()
    prt_1('L2ARC size (adaptive):', f_bytes(arc_stats['l2_size']))
    prt_i2('Compressed:', f_perc(arc_stats['l2_asize'], arc_stats['l2_size']),
           f_bytes(arc_stats['l2_asize']))
    prt_i2('Header size:',
           f_perc(arc_stats['l2_hdr_size'], arc_stats['l2_size']),
           f_bytes(arc_stats['l2_hdr_size']))
    print()
    prt_1('L2ARC breakdown:', f_hits(l2_access_total))
    prt_i2('Hit ratio:',
           f_perc(arc_stats['l2_hits'], l2_access_total),
           f_hits(arc_stats['l2_hits']))
    prt_i2('Miss ratio:',
           f_perc(arc_stats['l2_misses'], l2_access_total),
           f_hits(arc_stats['l2_misses']))
    prt_i1('Feeds:', f_hits(arc_stats['l2_feeds']))
    print()
    print('L2ARC writes:')
    if arc_stats['l2_writes_done'] != arc_stats['l2_writes_sent']:
        prt_i2('Writes sent:', 'FAULTED', f_hits(arc_stats['l2_writes_sent']))
        prt_i2('Done ratio:',
               f_perc(arc_stats['l2_writes_done'],
                      arc_stats['l2_writes_sent']),
               f_hits(arc_stats['l2_writes_done']))
        prt_i2('Error ratio:',
               f_perc(arc_stats['l2_writes_error'],
                      arc_stats['l2_writes_sent']),
               f_hits(arc_stats['l2_writes_error']))
    else:
        prt_i2('Writes sent:', '100 %', f_hits(arc_stats['l2_writes_sent']))
    print()
    print('L2ARC evicts:')
    prt_i1('Lock retries:', f_hits(arc_stats['l2_evict_lock_retry']))
    prt_i1('Upon reading:', f_hits(arc_stats['l2_evict_reading']))
    print()
 def section_spl(*_):
    """Print the SPL parameters, if requested with alternative format
    and/or descriptions. This does not use kstats.
    """
    if sys.platform.startswith('freebsd'):
        # No SPL support in FreeBSD
        return
    spls = get_spl_params()
    keylist = sorted(spls.keys())
    print('Solaris Porting Layer (SPL):')
    if ARGS.desc:
        descriptions = get_descriptions('spl')
    for key in keylist:
        value = spls[key]
        if ARGS.desc:
            try:
                print(INDENT+'#', descriptions[key])
            except KeyError:
                print(INDENT+'# (No description found)')  # paranoid
        print(format_raw_line(key, value))
    print()
 def section_tunables(*_):
    """Print the tunables, if requested with alternative format and/or
    descriptions. This does not use kstasts.
    """
    tunables = get_tunable_params()
    keylist = sorted(tunables.keys())
    print('Tunables:')
    if ARGS.desc:
        descriptions = get_descriptions('zfs')
    for key in keylist:
        value = tunables[key]
        if ARGS.desc:
            try:
                print(INDENT+'#', descriptions[key])
            except KeyError:
                print(INDENT+'# (No description found)')  # paranoid
        print(format_raw_line(key, value))
    print()
 def section_vdev(kstats_dict):
    """Collect information on VDEV caches"""
    # Currently [Nov 2017] the VDEV cache is disabled, because it is actually
    # harmful. When this is the case, we just skip the whole entry. See
    # https://github.com/openzfs/zfs/blob/master/module/zfs/vdev_cache.c
    # for details
    tunables = get_vdev_params()
    if tunables[VDEV_CACHE_SIZE] == '0':
        print('VDEV cache disabled, skipping section\n')
        return
    vdev_stats = isolate_section('vdev_cache_stats', kstats_dict)
    vdev_cache_total = int(vdev_stats['hits']) +\
        int(vdev_stats['misses']) +\
        int(vdev_stats['delegations'])
    prt_1('VDEV cache summary:', f_hits(vdev_cache_total))
    prt_i2('Hit ratio:', f_perc(vdev_stats['hits'], vdev_cache_total),
           f_hits(vdev_stats['hits']))
    prt_i2('Miss ratio:', f_perc(vdev_stats['misses'], vdev_cache_total),
           f_hits(vdev_stats['misses']))
    prt_i2('Delegations:', f_perc(vdev_stats['delegations'], vdev_cache_total),
           f_hits(vdev_stats['delegations']))
    print()
 def section_zil(kstats_dict):
    """Collect information on the ZFS Intent Log. Some of the information
    taken from https://github.com/openzfs/zfs/blob/master/include/sys/zil.h
    """
    zil_stats = isolate_section('zil', kstats_dict)
    prt_1('ZIL committed transactions:',
          f_hits(zil_stats['zil_itx_count']))
    prt_i1('Commit requests:', f_hits(zil_stats['zil_commit_count']))
    prt_i1('Flushes to stable storage:',
           f_hits(zil_stats['zil_commit_writer_count']))
    prt_i2('Transactions to SLOG storage pool:',
           f_bytes(zil_stats['zil_itx_metaslab_slog_bytes']),
           f_hits(zil_stats['zil_itx_metaslab_slog_count']))
    prt_i2('Transactions to non-SLOG storage pool:',
           f_bytes(zil_stats['zil_itx_metaslab_normal_bytes']),
           f_hits(zil_stats['zil_itx_metaslab_normal_count']))
    print()
 section_calls = {'arc': section_arc,
                 'archits': section_archits,
                 'dmu': section_dmu,
                 'l2arc': section_l2arc,
                 'spl': section_spl,
                 'tunables': section_tunables,
                 'vdev': section_vdev,
                 'zil': section_zil}
 def main():
    """Run program. The options to draw a graph and to print all data raw are
    treated separately because they come with their own call.
    """
    kstats = get_kstats()
    if ARGS.graph:
        draw_graph(kstats)
        sys.exit(0)
    print_header()
    if ARGS.raw:
        print_raw(kstats)
    elif ARGS.section:
        try:
            section_calls[ARGS.section](kstats)
        except KeyError:
            print('Error: Section "{0}" unknown'.format(ARGS.section))
            sys.exit(1)
    elif ARGS.page:
        print('WARNING: Pages are deprecated, please use "--section"\n')
        pages_to_calls = {1: 'arc',
                          2: 'archits',
                          3: 'l2arc',
                          4: 'dmu',
                          5: 'vdev',
                          6: 'tunables'}
        try:
            call = pages_to_calls[ARGS.page]
        except KeyError:
            print('Error: Page "{0}" not supported'.format(ARGS.page))
            sys.exit(1)
        else:
            section_calls[call](kstats)
    else:
        # If no parameters were given, we print all sections. We might want to
        # change the sequence by hand
        calls = sorted(section_calls.keys())
        for section in calls:
            section_calls[section](kstats)
    sys.exit(0)
 if __name__ == '__main__':
    main()
@@ -1 +0,0 @@
 arcstat
@@ -1,5 +1 @@
-include $(top_srcdir)/config/Substfiles.am
+dist_bin_SCRIPTS = arcstat.py
 bin_SCRIPTS = arcstat
 SUBSTFILES += $(bin_SCRIPTS)
@@ -1,25 +1,20 @@
-#!/usr/bin/env @PYTHON_SHEBANG@
+#!/usr/bin/python
 #
 # Print out ZFS ARC Statistics exported via kstat(1)
-# For a definition of fields, or usage, use arcstat -v
+# For a definition of fields, or usage, use arctstat.pl -v
 #
-# This script was originally a fork of the original arcstat.pl (0.1)
+# This script is a fork of the original arcstat.pl (0.1) by
-# by Neelakanth Nadgir, originally published on his Sun blog on
+# Neelakanth Nadgir, originally published on his Sun blog on
 # 09/18/2007
 #     http://blogs.sun.com/realneel/entry/zfs_arc_statistics
 #
-# A new version aimed to improve upon the original by adding features
+# This version aims to improve upon the original by adding features
-# and fixing bugs as needed.  This version was maintained by Mike
+# and fixing bugs as needed.  This version is maintained by
-# Harsch and was hosted in a public open source repository:
+# Mike Harsch and is hosted in a public open source repository:
 #    http://github.com/mharsch/arcstat
 #
-# but has since moved to the illumos-gate repository.
+# Comments, Questions, or Suggestions are always welcome.
-#
+# Contact the maintainer at ( mike at harschsystems dot com )
 # This Python port was written by John Hixson for FreeNAS, introduced
 # in commit e2c29f:
 #    https://github.com/freenas/freenas
 #
 # and has been improved by many people since.
 #
 # CDDL HEADER START
 #
@@ -47,8 +42,7 @@
 # @hdr is the array of fields that needs to be printed, so we
 # just iterate over this array and print the values using our pretty printer.
 #
-# This script must remain compatible with Python 2.6+ and Python 3.4+.
+
 #
 import sys
 import time
@@ -56,16 +50,16 @@ import getopt
 import re
 import copy
 from decimal import Decimal
 from signal import signal, SIGINT, SIGWINCH, SIG_DFL
 cols = {
    # HDR:        [Size, Scale, Description]
    "time":       [8, -1, "Time"],
    "hits":       [4, 1000, "ARC reads per second"],
    "miss":       [4, 1000, "ARC misses per second"],
    "read":       [4, 1000, "Total ARC accesses per second"],
-    "hit%":       [4, 100, "ARC hit percentage"],
+    "hit%":       [4, 100, "ARC Hit percentage"],
    "miss%":      [5, 100, "ARC miss percentage"],
    "dhit":       [4, 1000, "Demand hits per second"],
    "dmis":       [4, 1000, "Demand misses per second"],
@@ -77,16 +71,15 @@ cols = {
    "pm%":        [3, 100, "Prefetch miss percentage"],
    "mhit":       [4, 1000, "Metadata hits per second"],
    "mmis":       [4, 1000, "Metadata misses per second"],
-    "mread":      [5, 1000, "Metadata accesses per second"],
+    "mread":      [4, 1000, "Metadata accesses per second"],
    "mh%":        [3, 100, "Metadata hit percentage"],
    "mm%":        [3, 100, "Metadata miss percentage"],
-    "arcsz":      [5, 1024, "ARC size"],
+    "arcsz":      [5, 1024, "ARC Size"],
-    "size":       [4, 1024, "ARC size"],
+    "c":          [4, 1024, "ARC Target Size"],
-    "c":          [4, 1024, "ARC target size"],
+    "mfu":        [4, 1000, "MFU List hits per second"],
-    "mfu":        [4, 1000, "MFU list hits per second"],
+    "mru":        [4, 1000, "MRU List hits per second"],
-    "mru":        [4, 1000, "MRU list hits per second"],
+    "mfug":       [4, 1000, "MFU Ghost List hits per second"],
-    "mfug":       [4, 1000, "MFU ghost list hits per second"],
+    "mrug":       [4, 1000, "MRU Ghost List hits per second"],
    "mrug":       [4, 1000, "MRU ghost list hits per second"],
    "eskip":      [5, 1000, "evict_skip per second"],
    "mtxmis":     [6, 1000, "mutex_miss per second"],
    "dread":      [5, 1000, "Demand accesses per second"],
@@ -98,17 +91,12 @@ cols = {
    "l2miss%":    [7, 100, "L2ARC access miss percentage"],
    "l2asize":    [7, 1024, "Actual (compressed) size of the L2ARC"],
    "l2size":     [6, 1024, "Size of the L2ARC"],
-    "l2bytes":    [7, 1024, "Bytes read per second from the L2ARC"],
+    "l2bytes":    [7, 1024, "bytes read per second from the L2ARC"],
    "grow":       [4, 1000, "ARC grow disabled"],
    "need":       [4, 1024, "ARC reclaim need"],
    "free":       [4, 1024, "ARC free memory"],
    "avail":      [5, 1024, "ARC available memory"],
    "waste":      [5, 1024, "Wasted memory due to round up to pagesize"],
 }
 v = {}
 hdr = ["time", "read", "miss", "miss%", "dmis", "dm%", "pmis", "pm%", "mmis",
-       "mm%", "size", "c", "avail"]
+       "mm%", "arcsz", "c"]
 xhdr = ["time", "mfu", "mru", "mfug", "mrug", "eskip", "mtxmis", "dread",
        "pread", "read"]
 sint = 1               # Default interval is 1 second
@@ -118,56 +106,12 @@ opfile = None
 sep = "  "              # Default separator is 2 spaces
 version = "0.4"
 l2exist = False
-cmd = ("Usage: arcstat [-havxp] [-f fields] [-o file] [-s string] [interval "
+cmd = ("Usage: arcstat.py [-hvx] [-f fields] [-o file] [-s string] [interval "
       "[count]]\n")
 cur = {}
 d = {}
 out = None
 kstat = None
 pretty_print = True
 if sys.platform.startswith('freebsd'):
    # Requires py-sysctl on FreeBSD
    import sysctl
    def kstat_update():
        global kstat
        k = [ctl for ctl in sysctl.filter('kstat.zfs.misc.arcstats')
             if ctl.type != sysctl.CTLTYPE_NODE]
        if not k:
            sys.exit(1)
        kstat = {}
        for s in k:
            if not s:
                continue
            name, value = s.name, s.value
            # Trims 'kstat.zfs.misc.arcstats' from the name
            kstat[name[24:]] = int(value)
 elif sys.platform.startswith('linux'):
    def kstat_update():
        global kstat
        k = [line.strip() for line in open('/proc/spl/kstat/zfs/arcstats')]
        if not k:
            sys.exit(1)
        del k[0:2]
        kstat = {}
        for s in k:
            if not s:
                continue
            name, unused, value = s.split()
            kstat[name] = int(value)
 def detailed_usage():
@@ -183,7 +127,6 @@ def detailed_usage():
 def usage():
    sys.stderr.write("%s\n" % cmd)
    sys.stderr.write("\t -h : Print this help message\n")
    sys.stderr.write("\t -a : Print all possible stats\n")
    sys.stderr.write("\t -v : List all possible field headers and definitions"
                     "\n")
    sys.stderr.write("\t -x : Print extended stats\n")
@@ -191,17 +134,35 @@ def usage():
    sys.stderr.write("\t -o : Redirect output to the specified file\n")
    sys.stderr.write("\t -s : Override default field separator with custom "
                     "character or string\n")
    sys.stderr.write("\t -p : Disable auto-scaling of numerical fields\n")
    sys.stderr.write("\nExamples:\n")
-    sys.stderr.write("\tarcstat -o /tmp/a.log 2 10\n")
+    sys.stderr.write("\tarcstat.py -o /tmp/a.log 2 10\n")
-    sys.stderr.write("\tarcstat -s \",\" -o /tmp/a.log 2 10\n")
+    sys.stderr.write("\tarcstat.py -s \",\" -o /tmp/a.log 2 10\n")
-    sys.stderr.write("\tarcstat -v\n")
+    sys.stderr.write("\tarcstat.py -v\n")
-    sys.stderr.write("\tarcstat -f time,hit%,dh%,ph%,mh% 1\n")
+    sys.stderr.write("\tarcstat.py -f time,hit%,dh%,ph%,mh% 1\n")
    sys.stderr.write("\n")
    sys.exit(1)
 def kstat_update():
    global kstat
    k = [line.strip() for line in open('/proc/spl/kstat/zfs/arcstats')]
    if not k:
        sys.exit(1)
    del k[0:2]
    kstat = {}
    for s in k:
        if not s:
            continue
        name, unused, value = s.split()
        kstat[name] = Decimal(value)
 def snap_stats():
    global cur
    global kstat
@@ -232,7 +193,7 @@ def prettynum(sz, scale, num=0):
    elif 0 < num < 1:
        num = 0
-    while abs(num) > scale and index < 5:
+    while num > scale and index < 5:
        save = num
        num = num / scale
        index += 1
@@ -240,7 +201,7 @@ def prettynum(sz, scale, num=0):
    if index == 0:
        return "%*d" % (sz, num)
-    if abs(save / scale) < 10:
+    if (save / scale) < 10:
        return "%*.1f%s" % (sz - 1, num, suffix[index])
    else:
        return "%*d%s" % (sz - 1, num, suffix[index])
@@ -250,14 +211,12 @@ def print_values():
    global hdr
    global sep
    global v
    global pretty_print
-    if pretty_print:
+    for col in hdr:
-        fmt = lambda col: prettynum(cols[col][0], cols[col][1], v[col])
+        sys.stdout.write("%s%s" % (
-    else:
+            prettynum(cols[col][0], cols[col][1], v[col]),
-        fmt = lambda col: v[col]
+            sep
-
+        ))
    sys.stdout.write(sep.join(fmt(col) for col in hdr))
    sys.stdout.write("\n")
    sys.stdout.flush()
@@ -265,14 +224,9 @@ def print_values():
 def print_header():
    global hdr
    global sep
    global pretty_print
-    if pretty_print:
+    for col in hdr:
-        fmt = lambda col: "%*s" % (cols[col][0], col)
+        sys.stdout.write("%*s%s" % (cols[col][0], col, sep))
    else:
        fmt = lambda col: col
    sys.stdout.write(sep.join(fmt(col) for col in hdr))
    sys.stdout.write("\n")
@@ -309,10 +263,8 @@ def init():
    global sep
    global out
    global l2exist
    global pretty_print
    desired_cols = None
    aflag = False
    xflag = False
    hflag = False
    vflag = False
@@ -321,16 +273,14 @@ def init():
    try:
        opts, args = getopt.getopt(
            sys.argv[1:],
-            "axo:hvs:f:p",
+            "xo:hvs:f:",
            [
                "all",
                "extended",
                "outfile",
                "help",
                "verbose",
                "separator",
-                "columns",
+                "columns"
                "parsable"
            ]
        )
    except getopt.error as msg:
@@ -339,8 +289,6 @@ def init():
        opts = None
    for opt, arg in opts:
        if opt in ('-a', '--all'):
            aflag = True
        if opt in ('-x', '--extended'):
            xflag = True
        if opt in ('-o', '--outfile'):
@@ -356,13 +304,19 @@ def init():
        if opt in ('-f', '--columns'):
            desired_cols = arg
            i += 1
        if opt in ('-p', '--parsable'):
            pretty_print = False
        i += 1
    argv = sys.argv[i:]
-    sint = int(argv[0]) if argv else sint
+    sint = Decimal(argv[0]) if argv else sint
-    count = int(argv[1]) if len(argv) > 1 else (0 if len(argv) > 0 else 1)
+    count = int(argv[1]) if len(argv) > 1 else count
    if len(argv) > 1:
        sint = Decimal(argv[0])
        count = int(argv[1])
    elif len(argv) > 0:
        sint = Decimal(argv[0])
        count = 0
    if hflag or (xflag and desired_cols):
        usage()
@@ -402,12 +356,6 @@ def init():
                             incompat)
            usage()
    if aflag:
        if l2exist:
            hdr = cols.keys()
        else:
            hdr = [col for col in cols.keys() if not col.startswith("l2")]
    if opfile:
        try:
            out = open(opfile, "w")
@@ -456,7 +404,6 @@ def calculate():
    v["mm%"] = 100 - v["mh%"] if v["mread"] > 0 else 0
    v["arcsz"] = cur["size"]
    v["size"] = cur["size"]
    v["c"] = cur["c"]
    v["mfu"] = d["mfu_hits"] / sint
    v["mru"] = d["mru_hits"] / sint
@@ -476,12 +423,6 @@ def calculate():
        v["l2size"] = cur["l2_size"]
        v["l2bytes"] = d["l2_read_bytes"] / sint
    v["grow"] = 0 if cur["arc_no_grow"] else 1
    v["need"] = cur["arc_need_free"]
    v["free"] = cur["memory_free_bytes"]
    v["avail"] = cur["memory_available_bytes"]
    v["waste"] = cur["abd_chunk_waste_size"]
 def main():
    global sint
@@ -1 +0,0 @@
 dbufstat
@@ -1,5 +1 @@
-include $(top_srcdir)/config/Substfiles.am
+dist_bin_SCRIPTS = dbufstat.py
 bin_SCRIPTS = dbufstat
 SUBSTFILES += $(bin_SCRIPTS)
@@ -1,4 +1,4 @@
-#!/usr/bin/env @PYTHON_SHEBANG@
+#!/usr/bin/python
 #
 # Print out statistics for all cached dmu buffers.  This information
 # is available through the dbufs kstat and may be post-processed as
@@ -27,17 +27,14 @@
 # Copyright (C) 2013 Lawrence Livermore National Security, LLC.
 # Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 #
 # This script must remain compatible with Python 2.6+ and Python 3.4+.
 #
 import sys
 import getopt
 import errno
 import re
 bhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize"]
 bxhdr = ["pool", "objset", "object", "level", "blkid", "offset", "dbsize",
-         "meta", "state", "dbholds", "dbc", "list", "atype", "flags",
+         "meta", "state", "dbholds", "list", "atype", "flags",
         "count", "asize", "access", "mru", "gmru", "mfu", "gmfu", "l2",
         "l2_dattr", "l2_asize", "l2_comp", "aholds", "dtype", "btype",
         "data_bs", "meta_bs", "bsize", "lvls", "dholds", "blocks", "dsize"]
@@ -48,7 +45,7 @@ dxhdr = ["pool", "objset", "object", "dtype", "btype", "data_bs", "meta_bs",
         "bsize", "lvls", "dholds", "blocks", "dsize", "cached", "direct",
         "indirect", "bonus", "spill"]
 dincompat = ["level", "blkid", "offset", "dbsize", "meta", "state", "dbholds",
-             "dbc", "list", "atype", "flags", "count", "asize", "access",
+             "list", "atype", "flags", "count", "asize", "access",
             "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr", "l2_asize",
             "l2_comp", "aholds"]
@@ -56,7 +53,7 @@ thdr = ["pool", "objset", "dtype", "cached"]
 txhdr = ["pool", "objset", "dtype", "cached", "direct", "indirect",
         "bonus", "spill"]
 tincompat = ["object", "level", "blkid", "offset", "dbsize", "meta", "state",
-             "dbc", "dbholds", "list", "atype", "flags", "count", "asize",
+             "dbholds", "list", "atype", "flags", "count", "asize",
             "access", "mru", "gmru", "mfu", "gmfu", "l2", "l2_dattr",
             "l2_asize", "l2_comp", "aholds", "btype", "data_bs", "meta_bs",
             "bsize", "lvls", "dholds", "blocks", "dsize"]
@@ -73,10 +70,9 @@ cols = {
    "meta":       [4,    -1, "is this buffer metadata?"],
    "state":      [5,    -1, "state of buffer (read, cached, etc)"],
    "dbholds":    [7,  1000, "number of holds on buffer"],
    "dbc":        [3,    -1, "in dbuf cache"],
    "list":       [4,    -1, "which ARC list contains this buffer"],
    "atype":      [7,    -1, "ARC header type (data or metadata)"],
-    "flags":      [9,    -1, "ARC read flags"],
+    "flags":      [8,    -1, "ARC read flags"],
    "count":      [5,    -1, "ARC data count"],
    "asize":      [7,  1024, "size of this ARC buffer"],
    "access":     [10,   -1, "time this ARC buffer was last accessed"],
@@ -108,30 +104,15 @@ cols = {
 hdr = None
 xhdr = None
 sep = "  "  # Default separator is 2 spaces
-cmd = ("Usage: dbufstat [-bdhnrtvx] [-i file] [-f fields] [-o file] "
+cmd = ("Usage: dbufstat.py [-bdhrtvx] [-i file] [-f fields] [-o file] "
-       "[-s string] [-F filter]\n")
+       "[-s string]\n")
 raw = 0
 if sys.platform.startswith("freebsd"):
    import io
    # Requires py-sysctl on FreeBSD
    import sysctl
    def default_ifile():
        dbufs = sysctl.filter("kstat.zfs.misc.dbufs")[0].value
        sys.stdin = io.StringIO(dbufs)
        return "-"
 elif sys.platform.startswith("linux"):
    def default_ifile():
        return "/proc/spl/kstat/zfs/dbufs"
 def print_incompat_helper(incompat):
    cnt = 0
    for key in sorted(incompat):
-        if cnt == 0:
+        if cnt is 0:
            sys.stderr.write("\t")
        elif cnt > 8:
            sys.stderr.write(",\n\t")
@@ -170,7 +151,6 @@ def usage():
    sys.stderr.write("\t -b : Print table of information for each dbuf\n")
    sys.stderr.write("\t -d : Print table of information for each dnode\n")
    sys.stderr.write("\t -h : Print this help message\n")
    sys.stderr.write("\t -n : Exclude header from output\n")
    sys.stderr.write("\t -r : Print raw values\n")
    sys.stderr.write("\t -t : Print table of information for each dnode type"
                     "\n")
@@ -182,13 +162,11 @@ def usage():
    sys.stderr.write("\t -o : Redirect output to the specified file\n")
    sys.stderr.write("\t -s : Override default field separator with custom "
                     "character or string\n")
    sys.stderr.write("\t -F : Filter output by value or regex\n")
    sys.stderr.write("\nExamples:\n")
-    sys.stderr.write("\tdbufstat -d -o /tmp/d.log\n")
+    sys.stderr.write("\tdbufstat.py -d -o /tmp/d.log\n")
-    sys.stderr.write("\tdbufstat -t -s \",\" -o /tmp/t.log\n")
+    sys.stderr.write("\tdbufstat.py -t -s \",\" -o /tmp/t.log\n")
-    sys.stderr.write("\tdbufstat -v\n")
+    sys.stderr.write("\tdbufstat.py -v\n")
-    sys.stderr.write("\tdbufstat -d -f pool,object,objset,dsize,cached\n")
+    sys.stderr.write("\tdbufstat.py -d -f pool,object,objset,dsize,cached\n")
    sys.stderr.write("\tdbufstat -bx -F dbc=1,objset=54,pool=testpool\n")
    sys.stderr.write("\n")
    sys.exit(1)
@@ -250,8 +228,7 @@ def print_header():
 def get_typestring(t):
-    ot_strings = [
+    type_strings = ["DMU_OT_NONE",
                    "DMU_OT_NONE",
                    # general:
                    "DMU_OT_OBJECT_DIRECTORY",
                    "DMU_OT_OBJECT_ARRAY",
@@ -314,39 +291,15 @@ def get_typestring(t):
                    "DMU_OT_DEADLIST_HDR",
                    "DMU_OT_DSL_CLONES",
                    "DMU_OT_BPOBJ_SUBOBJ"]
    otn_strings = {
                    0x80: "DMU_OTN_UINT8_DATA",
                    0xc0: "DMU_OTN_UINT8_METADATA",
                    0x81: "DMU_OTN_UINT16_DATA",
                    0xc1: "DMU_OTN_UINT16_METADATA",
                    0x82: "DMU_OTN_UINT32_DATA",
                    0xc2: "DMU_OTN_UINT32_METADATA",
                    0x83: "DMU_OTN_UINT64_DATA",
                    0xc3: "DMU_OTN_UINT64_METADATA",
                    0x84: "DMU_OTN_ZAP_DATA",
                    0xc4: "DMU_OTN_ZAP_METADATA",
                    0xa0: "DMU_OTN_UINT8_ENC_DATA",
                    0xe0: "DMU_OTN_UINT8_ENC_METADATA",
                    0xa1: "DMU_OTN_UINT16_ENC_DATA",
                    0xe1: "DMU_OTN_UINT16_ENC_METADATA",
                    0xa2: "DMU_OTN_UINT32_ENC_DATA",
                    0xe2: "DMU_OTN_UINT32_ENC_METADATA",
                    0xa3: "DMU_OTN_UINT64_ENC_DATA",
                    0xe3: "DMU_OTN_UINT64_ENC_METADATA",
                    0xa4: "DMU_OTN_ZAP_ENC_DATA",
                    0xe4: "DMU_OTN_ZAP_ENC_METADATA"}
    # If "-rr" option is used, don't convert to string representation
    if raw > 1:
        return "%i" % t
    try:
-        if t < len(ot_strings):
+        return type_strings[t]
-            return ot_strings[t]
+    except IndexError:
-        else:
+        return "%i" % t
            return otn_strings[t]
    except (IndexError, KeyError):
        return "(UNKNOWN)"
 def get_compstring(c):
@@ -358,7 +311,7 @@ def get_compstring(c):
                    "ZIO_COMPRESS_GZIP_6",  "ZIO_COMPRESS_GZIP_7",
                    "ZIO_COMPRESS_GZIP_8",  "ZIO_COMPRESS_GZIP_9",
                    "ZIO_COMPRESS_ZLE",     "ZIO_COMPRESS_LZ4",
-                    "ZIO_COMPRESS_ZSTD",    "ZIO_COMPRESS_FUNCTION"]
+                    "ZIO_COMPRESS_FUNCTION"]
    # If "-rr" option is used, don't convert to string representation
    if raw > 1:
@@ -431,32 +384,12 @@ def update_dict(d, k, line, labels):
    return d
-def skip_line(vals, filters):
+def print_dict(d):
-    '''
+    print_header()
    Determines if a line should be skipped during printing
    based on a set of filters
    '''
    if len(filters) == 0:
        return False
    for key in vals:
        if key in filters:
            val = prettynum(cols[key][0], cols[key][1], vals[key]).strip()
            # we want a full match here
            if re.match("(?:" + filters[key] + r")\Z", val) is None:
                return True
    return False
 def print_dict(d, filters, noheader):
    if not noheader:
        print_header()
    for pool in list(d.keys()):
        for objset in list(d[pool].keys()):
            for v in list(d[pool][objset].values()):
-                if not skip_line(v, filters):
+                print_values(v)
                    print_values(v)
 def dnodes_build_dict(filehandle):
@@ -497,7 +430,7 @@ def types_build_dict(filehandle):
    return types
-def buffers_print_all(filehandle, filters, noheader):
+def buffers_print_all(filehandle):
    labels = dict()
    # First 3 lines are header information, skip the first two
@@ -508,14 +441,11 @@ def buffers_print_all(filehandle, filters, noheader):
    for i, v in enumerate(next(filehandle).split()):
        labels[v] = i
-    if not noheader:
+    print_header()
        print_header()
    # The rest of the file is buffer information
    for line in filehandle:
-        vals = parse_line(line.split(), labels)
+        print_values(parse_line(line.split(), labels))
        if not skip_line(vals, filters):
            print_values(vals)
 def main():
@@ -532,13 +462,11 @@ def main():
    tflag = False
    vflag = False
    xflag = False
    nflag = False
    filters = dict()
    try:
        opts, args = getopt.getopt(
            sys.argv[1:],
-            "bdf:hi:o:rs:tvxF:n",
+            "bdf:hi:o:rs:tvx",
            [
                "buffers",
                "dnodes",
@@ -549,8 +477,7 @@ def main():
                "separator",
                "types",
                "verbose",
-                "extended",
+                "extended"
                "filter"
            ]
        )
    except getopt.error:
@@ -580,35 +507,6 @@ def main():
            vflag = True
        if opt in ('-x', '--extended'):
            xflag = True
        if opt in ('-n', '--noheader'):
            nflag = True
        if opt in ('-F', '--filter'):
            fils = [x.strip() for x in arg.split(",")]
            for fil in fils:
                f = [x.strip() for x in fil.split("=")]
                if len(f) != 2:
                    sys.stderr.write("Invalid filter '%s'.\n" % fil)
                    sys.exit(1)
                if f[0] not in cols:
                    sys.stderr.write("Invalid field '%s' in filter.\n" % f[0])
                    sys.exit(1)
                if f[0] in filters:
                    sys.stderr.write("Field '%s' specified multiple times in "
                                     "filter.\n" % f[0])
                    sys.exit(1)
                try:
                    re.compile("(?:" + f[1] + r")\Z")
                except re.error:
                    sys.stderr.write("Invalid regex for field '%s' in "
                                     "filter.\n" % f[0])
                    sys.exit(1)
                filters[f[0]] = f[1]
    if hflag or (xflag and desired_cols):
        usage()
@@ -660,9 +558,9 @@ def main():
            sys.exit(1)
    if not ifile:
-        ifile = default_ifile()
+        ifile = '/proc/spl/kstat/zfs/dbufs'
-    if ifile != "-":
+    if ifile is not "-":
        try:
            tmp = open(ifile, "r")
            sys.stdin = tmp
@@ -671,13 +569,13 @@ def main():
            sys.exit(1)
    if bflag:
-        buffers_print_all(sys.stdin, filters, nflag)
+        buffers_print_all(sys.stdin)
    if dflag:
-        print_dict(dnodes_build_dict(sys.stdin), filters, nflag)
+        print_dict(dnodes_build_dict(sys.stdin))
    if tflag:
-        print_dict(types_build_dict(sys.stdin), filters, nflag)
+        print_dict(types_build_dict(sys.stdin))
 if __name__ == '__main__':
@@ -1,6 +1,6 @@
 #!/bin/sh
 #
-# fsck.zfs: A fsck helper to accommodate distributions that expect
+# fsck.zfs: A fsck helper to accomidate distributions that expect
 # to be able to execute a fsck on all filesystem types.  Currently
 # this script does nothing but it could be extended to act as a
 # compatibility wrapper for 'zpool scrub'.
@@ -1,5 +1,9 @@
 include $(top_srcdir)/config/Rules.am
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 #
 # Ignore the prefix for the mount helper.  It must be installed in /sbin/
 # because this path is hardcoded in the mount(8) for security reasons.
@@ -13,8 +17,8 @@ mount_zfs_SOURCES = \
 	mount_zfs.c
 mount_zfs_LDADD = \
-	$(abs_top_builddir)/lib/libzfs/libzfs.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libuutil/libuutil.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la
+	$(top_builddir)/lib/libzpool/libzpool.la \
-
+	$(top_builddir)/lib/libzfs/libzfs.la \
-mount_zfs_LDADD += $(LTLIBINTL)
+	$(top_builddir)/lib/libzfs_core/libzfs_core.la
@@ -31,57 +31,256 @@
 #include <sys/mntent.h>
 #include <sys/stat.h>
 #include <libzfs.h>
 #include <libzutil.h>
 #include <locale.h>
 #include <getopt.h>
 #include <fcntl.h>
 #include <errno.h>
 #define	ZS_COMMENT	0x00000000	/* comment */
 #define	ZS_ZFSUTIL	0x00000001	/* caller is zfs(8) */
 libzfs_handle_t *g_zfs;
 typedef struct option_map {
 	const char *name;
 	unsigned long mntmask;
 	unsigned long zfsmask;
 } option_map_t;
 static const option_map_t option_map[] = {
 	/* Canonicalized filesystem independent options from mount(8) */
 	{ MNTOPT_NOAUTO,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_DEFAULTS,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_NODEVICES,	MS_NODEV,	ZS_COMMENT	},
 	{ MNTOPT_DIRSYNC,	MS_DIRSYNC,	ZS_COMMENT	},
 	{ MNTOPT_NOEXEC,	MS_NOEXEC,	ZS_COMMENT	},
 	{ MNTOPT_GROUP,		MS_GROUP,	ZS_COMMENT	},
 	{ MNTOPT_NETDEV,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_NOFAIL,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_NOSUID,	MS_NOSUID,	ZS_COMMENT	},
 	{ MNTOPT_OWNER,		MS_OWNER,	ZS_COMMENT	},
 	{ MNTOPT_REMOUNT,	MS_REMOUNT,	ZS_COMMENT	},
 	{ MNTOPT_RO,		MS_RDONLY,	ZS_COMMENT	},
 	{ MNTOPT_RW,		MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_SYNC,		MS_SYNCHRONOUS,	ZS_COMMENT	},
 	{ MNTOPT_USER,		MS_USERS,	ZS_COMMENT	},
 	{ MNTOPT_USERS,		MS_USERS,	ZS_COMMENT	},
 	/* acl flags passed with util-linux-2.24 mount command */
 	{ MNTOPT_ACL,		MS_POSIXACL,	ZS_COMMENT	},
 	{ MNTOPT_NOACL,		MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_POSIXACL,	MS_POSIXACL,	ZS_COMMENT	},
 #ifdef MS_NOATIME
 	{ MNTOPT_NOATIME,	MS_NOATIME,	ZS_COMMENT	},
 #endif
 #ifdef MS_NODIRATIME
 	{ MNTOPT_NODIRATIME,	MS_NODIRATIME,	ZS_COMMENT	},
 #endif
 #ifdef MS_RELATIME
 	{ MNTOPT_RELATIME,	MS_RELATIME,	ZS_COMMENT	},
 #endif
 #ifdef MS_STRICTATIME
 	{ MNTOPT_STRICTATIME,	MS_STRICTATIME,	ZS_COMMENT	},
 #endif
 #ifdef MS_LAZYTIME
 	{ MNTOPT_LAZYTIME,	MS_LAZYTIME,	ZS_COMMENT	},
 #endif
 	{ MNTOPT_CONTEXT,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_FSCONTEXT,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_DEFCONTEXT,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_ROOTCONTEXT,	MS_COMMENT,	ZS_COMMENT	},
 #ifdef MS_I_VERSION
 	{ MNTOPT_IVERSION,	MS_I_VERSION,	ZS_COMMENT	},
 #endif
 #ifdef MS_MANDLOCK
 	{ MNTOPT_NBMAND,	MS_MANDLOCK,	ZS_COMMENT	},
 #endif
 	/* Valid options not found in mount(8) */
 	{ MNTOPT_BIND,		MS_BIND,	ZS_COMMENT	},
 #ifdef MS_REC
 	{ MNTOPT_RBIND,		MS_BIND|MS_REC,	ZS_COMMENT	},
 #endif
 	{ MNTOPT_COMMENT,	MS_COMMENT,	ZS_COMMENT	},
 #ifdef MS_NOSUB
 	{ MNTOPT_NOSUB,		MS_NOSUB,	ZS_COMMENT	},
 #endif
 #ifdef MS_SILENT
 	{ MNTOPT_QUIET,		MS_SILENT,	ZS_COMMENT	},
 #endif
 	/* Custom zfs options */
 	{ MNTOPT_XATTR,		MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_NOXATTR,	MS_COMMENT,	ZS_COMMENT	},
 	{ MNTOPT_ZFSUTIL,	MS_COMMENT,	ZS_ZFSUTIL	},
 	{ NULL,			0,		0		} };
 /*
- * Opportunistically convert a target string into a pool name. If the
+ * Break the mount option in to a name/value pair.  The name is
- * string does not represent a block device with a valid zfs label
+ * validated against the option map and mount flags set accordingly.
 * then it is passed through without modification.
 */
-static void
+static int
-parse_dataset(const char *target, char **dataset)
+parse_option(char *mntopt, unsigned long *mntflags,
    unsigned long *zfsflags, int sloppy)
 {
 	const option_map_t *opt;
 	char *ptr, *name, *value = NULL;
 	int error = 0;
 	name = strdup(mntopt);
 	if (name == NULL)
 		return (ENOMEM);
 	for (ptr = name; ptr && *ptr; ptr++) {
 		if (*ptr == '=') {
 			*ptr = '\0';
 			value = ptr+1;
 			VERIFY3P(value, !=, NULL);
 			break;
 		}
 	}
 	for (opt = option_map; opt->name != NULL; opt++) {
 		if (strncmp(name, opt->name, strlen(name)) == 0) {
 			*mntflags |= opt->mntmask;
 			*zfsflags |= opt->zfsmask;
 			error = 0;
 			goto out;
 		}
 	}
 	if (!sloppy)
 		error = ENOENT;
 out:
 	/* If required further process on the value may be done here */
 	free(name);
 	return (error);
 }
 /*
 * Translate the mount option string in to MS_* mount flags for the
 * kernel vfs.  When sloppy is non-zero unknown options will be ignored
 * otherwise they are considered fatal are copied in to badopt.
 */
 static int
 parse_options(char *mntopts, unsigned long *mntflags, unsigned long *zfsflags,
    int sloppy, char *badopt, char *mtabopt)
 {
 	int error = 0, quote = 0, flag = 0, count = 0;
 	char *ptr, *opt, *opts;
 	opts = strdup(mntopts);
 	if (opts == NULL)
 		return (ENOMEM);
 	*mntflags = 0;
 	opt = NULL;
 	/*
-	 * Prior to util-linux 2.36.2, if a file or directory in the
+	 * Scan through all mount options which must be comma delimited.
-	 * current working directory was named 'dataset' then mount(8)
+	 * We must be careful to notice regions which are double quoted
-	 * would prepend the current working directory to the dataset.
+	 * and skip commas in these regions.  Each option is then checked
-	 * Check for it and strip the prepended path when it is added.
+	 * to determine if it is a known option.
 	 */
 	for (ptr = opts; ptr && !flag; ptr++) {
 		if (opt == NULL)
 			opt = ptr;
 		if (*ptr == '"')
 			quote = !quote;
 		if (quote)
 			continue;
 		if (*ptr == '\0')
 			flag = 1;
 		if ((*ptr == ',') || (*ptr == '\0')) {
 			*ptr = '\0';
 			error = parse_option(opt, mntflags, zfsflags, sloppy);
 			if (error) {
 				strcpy(badopt, opt);
 				goto out;
 			}
 			if (!(*mntflags & MS_REMOUNT) &&
 			    !(*zfsflags & ZS_ZFSUTIL)) {
 				if (count > 0)
 					strlcat(mtabopt, ",", MNT_LINE_MAX);
 				strlcat(mtabopt, opt, MNT_LINE_MAX);
 				count++;
 			}
 			opt = NULL;
 		}
 	}
 out:
 	free(opts);
 	return (error);
 }
 /*
 * Return the pool/dataset to mount given the name passed to mount.  This
 * is expected to be of the form pool/dataset, however may also refer to
 * a block device if that device contains a valid zfs label.
 */
 static char *
 parse_dataset(char *dataset)
 {
 	char cwd[PATH_MAX];
-	if (getcwd(cwd, PATH_MAX) == NULL) {
+	struct stat64 statbuf;
-		perror("getcwd");
+	int error;
-		return;
+	int len;
 	/*
 	 * We expect a pool/dataset to be provided, however if we're
 	 * given a device which is a member of a zpool we attempt to
 	 * extract the pool name stored in the label.  Given the pool
 	 * name we can mount the root dataset.
 	 */
 	error = stat64(dataset, &statbuf);
 	if (error == 0) {
 		nvlist_t *config;
 		char *name;
 		int fd;
 		fd = open(dataset, O_RDONLY);
 		if (fd < 0)
 			goto out;
 		error = zpool_read_label(fd, &config, NULL);
 		(void) close(fd);
 		if (error)
 			goto out;
 		error = nvlist_lookup_string(config,
 		    ZPOOL_CONFIG_POOL_NAME, &name);
 		if (error) {
 			nvlist_free(config);
 		} else {
 			dataset = strdup(name);
 			nvlist_free(config);
 			return (dataset);
 		}
 	}
-	int len = strlen(cwd);
+out:
-	if (strncmp(cwd, target, len) == 0)
+	/*
-		target += len;
+	 * If a file or directory in your current working directory is
 	 * named 'dataset' then mount(8) will prepend your current working
 	 * directory to the dataset.  There is no way to prevent this
 	 * behavior so we simply check for it and strip the prepended
 	 * patch when it is added.
 	 */
 	if (getcwd(cwd, PATH_MAX) == NULL)
 		return (dataset);
-	/* Assume pool/dataset is more likely */
+	len = strlen(cwd);
 	strlcpy(*dataset, target, PATH_MAX);
-	int fd = open(target, O_RDONLY | O_CLOEXEC);
+	/* Do not add one when cwd already ends in a trailing '/' */
-	if (fd < 0)
+	if (strncmp(cwd, dataset, len) == 0)
-		return;
+		return (dataset + len + (cwd[len-1] != '/'));
-	nvlist_t *cfg = NULL;
+	return (dataset);
 	if (zpool_read_label(fd, &cfg, NULL) == 0) {
 		char *nm = NULL;
 		if (!nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &nm))
 			strlcpy(*dataset, nm, PATH_MAX);
 		nvlist_free(cfg);
 	}
 	if (close(fd))
 		perror("close");
 }
 /*
@@ -125,8 +324,8 @@ mtab_update(char *dataset, char *mntpoint, char *type, char *mntopts)
 	if (!fp) {
 		(void) fprintf(stderr, gettext(
 		    "filesystem '%s' was mounted, but /etc/mtab "
-		    "could not be opened due to error: %s\n"),
+		    "could not be opened due to error %d\n"),
-		    dataset, strerror(errno));
+		    dataset, errno);
 		return (MOUNT_FILEIO);
 	}
@@ -134,8 +333,8 @@ mtab_update(char *dataset, char *mntpoint, char *type, char *mntopts)
 	if (error) {
 		(void) fprintf(stderr, gettext(
 		    "filesystem '%s' was mounted, but /etc/mtab "
-		    "could not be updated due to error: %s\n"),
+		    "could not be updated due to error %d\n"),
-		    dataset, strerror(errno));
+		    dataset, errno);
 		return (MOUNT_FILEIO);
 	}
@@ -144,6 +343,34 @@ mtab_update(char *dataset, char *mntpoint, char *type, char *mntopts)
 	return (MOUNT_SUCCESS);
 }
 static void
 append_mntopt(const char *name, const char *val, char *mntopts,
    char *mtabopt, boolean_t quote)
 {
 	char tmp[MNT_LINE_MAX];
 	snprintf(tmp, MNT_LINE_MAX, quote ? ",%s=\"%s\"" : ",%s=%s", name, val);
 	if (mntopts)
 		strlcat(mntopts, tmp, MNT_LINE_MAX);
 	if (mtabopt)
 		strlcat(mtabopt, tmp, MNT_LINE_MAX);
 }
 static void
 zfs_selinux_setcontext(zfs_handle_t *zhp, zfs_prop_t zpt, const char *name,
    char *mntopts, char *mtabopt)
 {
 	char context[ZFS_MAXPROPLEN];
 	if (zfs_prop_get(zhp, zpt, context, sizeof (context),
 	    NULL, NULL, 0, B_FALSE) == 0) {
 		if (strcmp(context, "none") != 0)
 			append_mntopt(name, context, mntopts, mtabopt, B_TRUE);
 	}
 }
 int
 main(int argc, char **argv)
 {
@@ -154,13 +381,12 @@ main(int argc, char **argv)
 	char badopt[MNT_LINE_MAX] = { '\0' };
 	char mtabopt[MNT_LINE_MAX] = { '\0' };
 	char mntpoint[PATH_MAX];
-	char dataset[PATH_MAX], *pdataset = dataset;
+	char *dataset;
 	unsigned long mntflags = 0, zfsflags = 0, remount = 0;
 	int sloppy = 0, fake = 0, verbose = 0, nomtab = 0, zfsutil = 0;
 	int error, c;
 	(void) setlocale(LC_ALL, "");
 	(void) setlocale(LC_NUMERIC, "C");
 	(void) textdomain(TEXT_DOMAIN);
 	opterr = 0;
@@ -210,18 +436,18 @@ main(int argc, char **argv)
 		return (MOUNT_USAGE);
 	}
-	parse_dataset(argv[0], &pdataset);
+	dataset = parse_dataset(argv[0]);
 	/* canonicalize the mount point */
 	if (realpath(argv[1], mntpoint) == NULL) {
 		(void) fprintf(stderr, gettext("filesystem '%s' cannot be "
-		    "mounted at '%s' due to canonicalization error: %s\n"),
+		    "mounted at '%s' due to canonicalization error %d.\n"),
-		    dataset, argv[1], strerror(errno));
+		    dataset, argv[1], errno);
 		return (MOUNT_SYSERR);
 	}
 	/* validate mount options and set mntflags */
-	error = zfs_parse_mount_options(mntopts, &mntflags, &zfsflags, sloppy,
+	error = parse_options(mntopts, &mntflags, &zfsflags, sloppy,
 	    badopt, mtabopt);
 	if (error) {
 		switch (error) {
@@ -261,7 +487,7 @@ main(int argc, char **argv)
 		zfsutil = 1;
 	if ((g_zfs = libzfs_init()) == NULL) {
-		(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
+		(void) fprintf(stderr, "%s", libzfs_error_init(errno));
 		return (MOUNT_SYSERR);
 	}
@@ -274,7 +500,32 @@ main(int argc, char **argv)
 		return (MOUNT_USAGE);
 	}
-	zfs_adjust_mount_options(zhp, mntpoint, mntopts, mtabopt);
+	/*
 	 * Checks to see if the ZFS_PROP_SELINUX_CONTEXT exists
 	 * if it does, create a tmp variable in case it's needed
 	 * checks to see if the selinux context is set to the default
 	 * if it is, allow the setting of the other context properties
 	 * this is needed because the 'context' property overrides others
 	 * if it is not the default, set the 'context' property
 	 */
 	if (zfs_prop_get(zhp, ZFS_PROP_SELINUX_CONTEXT, prop, sizeof (prop),
 	    NULL, NULL, 0, B_FALSE) == 0) {
 		if (strcmp(prop, "none") == 0) {
 			zfs_selinux_setcontext(zhp, ZFS_PROP_SELINUX_FSCONTEXT,
 			    MNTOPT_FSCONTEXT, mntopts, mtabopt);
 			zfs_selinux_setcontext(zhp, ZFS_PROP_SELINUX_DEFCONTEXT,
 			    MNTOPT_DEFCONTEXT, mntopts, mtabopt);
 			zfs_selinux_setcontext(zhp,
 			    ZFS_PROP_SELINUX_ROOTCONTEXT, MNTOPT_ROOTCONTEXT,
 			    mntopts, mtabopt);
 		} else {
 			append_mntopt(MNTOPT_CONTEXT, prop,
 			    mntopts, mtabopt, B_TRUE);
 		}
 	}
 	/* A hint used to determine an auto-mounted snapshot mount point */
 	append_mntopt(MNTOPT_MNTPOINT, mntpoint, mntopts, NULL, B_FALSE);
 	/* treat all snapshots as legacy mount points */
 	if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT)
@@ -1,10 +1,11 @@
 include $(top_srcdir)/config/Rules.am
-# Includes kernel code, generate warnings for large stack frames
+AM_CFLAGS += $(DEBUG_STACKFLAGS) $(FRAME_LARGER_THAN)
-AM_CFLAGS += $(FRAME_LARGER_THAN)
+AM_CPPFLAGS += -DDEBUG
-# Unconditionally enable ASSERTs
+DEFAULT_INCLUDES += \
-AM_CPPFLAGS += -DDEBUG -UNDEBUG -DZFS_DEBUG
+	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 bin_PROGRAMS = raidz_test
@@ -14,7 +15,8 @@ raidz_test_SOURCES = \
 	raidz_bench.c
 raidz_test_LDADD = \
-	$(abs_top_builddir)/lib/libzpool/libzpool.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la
+	$(top_builddir)/lib/libuutil/libuutil.la \
 	$(top_builddir)/lib/libzpool/libzpool.la
-raidz_test_LDADD += -lm
+raidz_test_LDADD += -lm -ldl
@@ -113,7 +113,7 @@ run_gen_bench_impl(const char *impl)
 	}
 }
-static void
+void
 run_gen_bench(void)
 {
 	char **impl_name;
@@ -197,7 +197,7 @@ run_rec_bench_impl(const char *impl)
 	}
 }
-static void
+void
 run_rec_bench(void)
 {
 	char **impl_name;
@@ -702,8 +702,10 @@ run_sweep(void)
 		opts->rto_dsize = size_v[s];
 		opts->rto_v = 0; /* be quiet */
-		VERIFY3P(thread_create(NULL, 0, sweep_thread, (void *) opts,
+		VERIFY3P(zk_thread_create(NULL, 0,
-		    0, NULL, TS_RUN, defclsyspri), !=, NULL);
+		    (thread_func_t)sweep_thread,
 		    (void *) opts, 0, NULL, TS_RUN, 0,
 		    PTHREAD_CREATE_JOINABLE), !=, NULL);
 	}
 exit:
@@ -757,7 +759,7 @@ main(int argc, char **argv)
 	process_options(argc, argv);
-	kernel_init(SPA_MODE_READ);
+	kernel_init(FREAD);
 	/* setup random data because rand() is not reentrant */
 	rand_data = (int *)umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL);
@@ -38,7 +38,6 @@ static const char *raidz_impl_names[] = {
 	"avx512bw",
 	"aarch64_neon",
 	"aarch64_neonx2",
 	"powerpc_altivec",
 	NULL
 };
@@ -102,7 +102,7 @@ Usage: vdev_id [-h]
       vdev_id <-d device> [-c config_file] [-p phys_per_port]
               [-g sas_direct|sas_switch|scsi] [-m]
-  -c    specify name of an alternative config file [default=$CONFIG]
+  -c    specify name of alernate config file [default=$CONFIG]
  -d    specify basename of device (i.e. sda)
  -e    Create enclose device symlinks only (/dev/by-enclosure)
  -g    Storage network topology [default="$TOPOLOGY"]
@@ -114,8 +114,9 @@ EOF
 }
 map_slot() {
-	LINUX_SLOT=$1
+	local LINUX_SLOT=$1
-	CHANNEL=$2
+	local CHANNEL=$2
 	local MAPPED_SLOT=
 	MAPPED_SLOT=`awk "\\$1 == \"slot\" && \\$2 == ${LINUX_SLOT} && \
 			\\$4 ~ /^${CHANNEL}$|^$/ { print \\$3; exit }" $CONFIG`
@@ -126,9 +127,9 @@ map_slot() {
 }
 map_channel() {
-	MAPPED_CHAN=
+	local MAPPED_CHAN=
-	PCI_ID=$1
+	local PCI_ID=$1
-	PORT=$2
+	local PORT=$2
 	case $TOPOLOGY in
 		"sas_switch")
@@ -486,7 +487,7 @@ alias_handler () {
 	#          digits as partitions, causing alias creation to fail. This
 	#          ambiguity seems unavoidable, so devices using this facility
 	#          must not use such names.
-	DM_PART=
+	local DM_PART=
 	if echo $DM_NAME | grep -q -E 'p[0-9][0-9]*$' ; then
 		if [ "$DEVTYPE" != "partition" ] ; then
 			DM_PART=`echo $DM_NAME | awk -Fp '/p/{print "-part"$2}'`
@@ -545,11 +546,10 @@ while getopts 'c:d:eg:mp:h' OPTION; do
 done
 if [ ! -r $CONFIG ] ; then
 	echo "Error: Config file \"$CONFIG\" not found"
 	exit 0
 fi
-if [ -z "$DEV" ] && [ -z "$ENCLOSURE_MODE" ] ; then
+if [ -z "$DEV" -a -z "$ENCLOSURE_MODE" ] ; then
 	echo "Error: missing required option -d"
 	exit 1
 fi
@@ -565,7 +565,7 @@ fi
 TOPOLOGY=${TOPOLOGY:-sas_direct}
 # Should we create /dev/by-enclosure symlinks?
-if [ "$ENCLOSURE_MODE" = "yes" ] && [ "$TOPOLOGY" = "sas_direct" ] ; then
+if [ "$ENCLOSURE_MODE" = "yes" -a "$TOPOLOGY" = "sas_direct" ] ; then
 	ID_ENCLOSURE=$(enclosure_handler)
 	if [ -z "$ID_ENCLOSURE" ] ; then
 		exit 0
@@ -1,16 +1,20 @@
 include $(top_srcdir)/config/Rules.am
-# Unconditionally enable debugging for zdb
+AM_CPPFLAGS += -DDEBUG
-AM_CPPFLAGS += -DDEBUG -UNDEBUG -DZFS_DEBUG
+
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 sbin_PROGRAMS = zdb
 zdb_SOURCES = \
 	zdb.c \
-	zdb_il.c \
+	zdb_il.c
 	zdb.h
 zdb_LDADD = \
-	$(abs_top_builddir)/lib/libzpool/libzpool.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libuutil/libuutil.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la
+	$(top_builddir)/lib/libzpool/libzpool.la \
 	$(top_builddir)/lib/libzfs/libzfs.la \
 	$(top_builddir)/lib/libzfs_core/libzfs_core.la
@@ -25,7 +25,7 @@
 */
 /*
- * Copyright (c) 2013, 2017 by Delphix. All rights reserved.
+ * Copyright (c) 2013, 2016 by Delphix. All rights reserved.
 */
 /*
@@ -42,14 +42,11 @@
 #include <sys/resource.h>
 #include <sys/zil.h>
 #include <sys/zil_impl.h>
 #include <sys/spa_impl.h>
 #include <sys/abd.h>
 #include "zdb.h"
 extern uint8_t dump_opt[256];
-static char tab_prefix[4] = "\t\t\t";
+static char prefix[4] = "\t\t\t";
 static void
 print_log_bp(const blkptr_t *bp, const char *prefix)
@@ -62,9 +59,8 @@ print_log_bp(const blkptr_t *bp, const char *prefix)
 /* ARGSUSED */
 static void
-zil_prt_rec_create(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_create(zilog_t *zilog, int txtype, lr_create_t *lr)
 {
 	const lr_create_t *lr = arg;
 	time_t crtime = lr->lr_crtime[0];
 	char *name, *link;
 	lr_attr_t *lrattr;
@@ -79,55 +75,49 @@ zil_prt_rec_create(zilog_t *zilog, int txtype, const void *arg)
 	if (txtype == TX_SYMLINK) {
 		link = name + strlen(name) + 1;
-		(void) printf("%s%s -> %s\n", tab_prefix, name, link);
+		(void) printf("%s%s -> %s\n", prefix, name, link);
 	} else if (txtype != TX_MKXATTR) {
-		(void) printf("%s%s\n", tab_prefix, name);
+		(void) printf("%s%s\n", prefix, name);
 	}
-	(void) printf("%s%s", tab_prefix, ctime(&crtime));
+	(void) printf("%s%s", prefix, ctime(&crtime));
-	(void) printf("%sdoid %llu, foid %llu, slots %llu, mode %llo\n",
+	(void) printf("%sdoid %llu, foid %llu, slots %llu, mode %llo\n", prefix,
-	    tab_prefix, (u_longlong_t)lr->lr_doid,
+	    (u_longlong_t)lr->lr_doid,
 	    (u_longlong_t)LR_FOID_GET_OBJ(lr->lr_foid),
 	    (u_longlong_t)LR_FOID_GET_SLOTS(lr->lr_foid),
 	    (longlong_t)lr->lr_mode);
-	(void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n",
+	(void) printf("%suid %llu, gid %llu, gen %llu, rdev 0x%llx\n", prefix,
 	    tab_prefix,
 	    (u_longlong_t)lr->lr_uid, (u_longlong_t)lr->lr_gid,
 	    (u_longlong_t)lr->lr_gen, (u_longlong_t)lr->lr_rdev);
 }
 /* ARGSUSED */
 static void
-zil_prt_rec_remove(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_remove(zilog_t *zilog, int txtype, lr_remove_t *lr)
 {
-	const lr_remove_t *lr = arg;
+	(void) printf("%sdoid %llu, name %s\n", prefix,
 	(void) printf("%sdoid %llu, name %s\n", tab_prefix,
 	    (u_longlong_t)lr->lr_doid, (char *)(lr + 1));
 }
 /* ARGSUSED */
 static void
-zil_prt_rec_link(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_link(zilog_t *zilog, int txtype, lr_link_t *lr)
 {
-	const lr_link_t *lr = arg;
+	(void) printf("%sdoid %llu, link_obj %llu, name %s\n", prefix,
 	(void) printf("%sdoid %llu, link_obj %llu, name %s\n", tab_prefix,
 	    (u_longlong_t)lr->lr_doid, (u_longlong_t)lr->lr_link_obj,
 	    (char *)(lr + 1));
 }
 /* ARGSUSED */
 static void
-zil_prt_rec_rename(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_rename(zilog_t *zilog, int txtype, lr_rename_t *lr)
 {
 	const lr_rename_t *lr = arg;
 	char *snm = (char *)(lr + 1);
 	char *tnm = snm + strlen(snm) + 1;
-	(void) printf("%ssdoid %llu, tdoid %llu\n", tab_prefix,
+	(void) printf("%ssdoid %llu, tdoid %llu\n", prefix,
 	    (u_longlong_t)lr->lr_sdoid, (u_longlong_t)lr->lr_tdoid);
-	(void) printf("%ssrc %s tgt %s\n", tab_prefix, snm, tnm);
+	(void) printf("%ssrc %s tgt %s\n", prefix, snm, tnm);
 }
 /* ARGSUSED */
@@ -135,8 +125,9 @@ static int
 zil_prt_rec_write_cb(void *data, size_t len, void *unused)
 {
 	char *cdata = data;
 	int i;
-	for (size_t i = 0; i < len; i++) {
+	for (i = 0; i < len; i++) {
 		if (isprint(*cdata))
 			(void) printf("%c ", *cdata);
 		else
@@ -148,16 +139,15 @@ zil_prt_rec_write_cb(void *data, size_t len, void *unused)
 /* ARGSUSED */
 static void
-zil_prt_rec_write(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_write(zilog_t *zilog, int txtype, lr_write_t *lr)
 {
 	const lr_write_t *lr = arg;
 	abd_t *data;
-	const blkptr_t *bp = &lr->lr_blkptr;
+	blkptr_t *bp = &lr->lr_blkptr;
 	zbookmark_phys_t zb;
 	int verbose = MAX(dump_opt['d'], dump_opt['i']);
 	int error;
-	(void) printf("%sfoid %llu, offset %llx, length %llx\n", tab_prefix,
+	(void) printf("%sfoid %llu, offset %llx, length %llx\n", prefix,
 	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_offset,
 	    (u_longlong_t)lr->lr_length);
@@ -165,21 +155,20 @@ zil_prt_rec_write(zilog_t *zilog, int txtype, const void *arg)
 		return;
 	if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
-		(void) printf("%shas blkptr, %s\n", tab_prefix,
+		(void) printf("%shas blkptr, %s\n", prefix,
 		    !BP_IS_HOLE(bp) &&
-		    bp->blk_birth >= spa_min_claim_txg(zilog->zl_spa) ?
+		    bp->blk_birth >= spa_first_txg(zilog->zl_spa) ?
 		    "will claim" : "won't claim");
-		print_log_bp(bp, tab_prefix);
+		print_log_bp(bp, prefix);
 		if (BP_IS_HOLE(bp)) {
 			(void) printf("\t\t\tLSIZE 0x%llx\n",
 			    (u_longlong_t)BP_GET_LSIZE(bp));
-			(void) printf("%s<hole>\n", tab_prefix);
+			(void) printf("%s<hole>\n", prefix);
 			return;
 		}
 		if (bp->blk_birth < zilog->zl_header->zh_claim_txg) {
-			(void) printf("%s<block already committed>\n",
+			(void) printf("%s<block already committed>\n", prefix);
 			    tab_prefix);
 			return;
 		}
@@ -199,7 +188,7 @@ zil_prt_rec_write(zilog_t *zilog, int txtype, const void *arg)
 		abd_copy_from_buf(data, lr + 1, lr->lr_length);
 	}
-	(void) printf("%s", tab_prefix);
+	(void) printf("%s", prefix);
 	(void) abd_iterate_func(data,
 	    0, MIN(lr->lr_length, (verbose < 6 ? 20 : SPA_MAXBLOCKSIZE)),
 	    zil_prt_rec_write_cb, NULL);
@@ -211,55 +200,52 @@ out:
 /* ARGSUSED */
 static void
-zil_prt_rec_truncate(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_truncate(zilog_t *zilog, int txtype, lr_truncate_t *lr)
 {
-	const lr_truncate_t *lr = arg;
+	(void) printf("%sfoid %llu, offset 0x%llx, length 0x%llx\n", prefix,
 	(void) printf("%sfoid %llu, offset 0x%llx, length 0x%llx\n", tab_prefix,
 	    (u_longlong_t)lr->lr_foid, (longlong_t)lr->lr_offset,
 	    (u_longlong_t)lr->lr_length);
 }
 /* ARGSUSED */
 static void
-zil_prt_rec_setattr(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_setattr(zilog_t *zilog, int txtype, lr_setattr_t *lr)
 {
 	const lr_setattr_t *lr = arg;
 	time_t atime = (time_t)lr->lr_atime[0];
 	time_t mtime = (time_t)lr->lr_mtime[0];
-	(void) printf("%sfoid %llu, mask 0x%llx\n", tab_prefix,
+	(void) printf("%sfoid %llu, mask 0x%llx\n", prefix,
 	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_mask);
 	if (lr->lr_mask & AT_MODE) {
-		(void) printf("%sAT_MODE  %llo\n", tab_prefix,
+		(void) printf("%sAT_MODE  %llo\n", prefix,
 		    (longlong_t)lr->lr_mode);
 	}
 	if (lr->lr_mask & AT_UID) {
-		(void) printf("%sAT_UID   %llu\n", tab_prefix,
+		(void) printf("%sAT_UID   %llu\n", prefix,
 		    (u_longlong_t)lr->lr_uid);
 	}
 	if (lr->lr_mask & AT_GID) {
-		(void) printf("%sAT_GID   %llu\n", tab_prefix,
+		(void) printf("%sAT_GID   %llu\n", prefix,
 		    (u_longlong_t)lr->lr_gid);
 	}
 	if (lr->lr_mask & AT_SIZE) {
-		(void) printf("%sAT_SIZE  %llu\n", tab_prefix,
+		(void) printf("%sAT_SIZE  %llu\n", prefix,
 		    (u_longlong_t)lr->lr_size);
 	}
 	if (lr->lr_mask & AT_ATIME) {
-		(void) printf("%sAT_ATIME %llu.%09llu %s", tab_prefix,
+		(void) printf("%sAT_ATIME %llu.%09llu %s", prefix,
 		    (u_longlong_t)lr->lr_atime[0],
 		    (u_longlong_t)lr->lr_atime[1],
 		    ctime(&atime));
 	}
 	if (lr->lr_mask & AT_MTIME) {
-		(void) printf("%sAT_MTIME %llu.%09llu %s", tab_prefix,
+		(void) printf("%sAT_MTIME %llu.%09llu %s", prefix,
 		    (u_longlong_t)lr->lr_mtime[0],
 		    (u_longlong_t)lr->lr_mtime[1],
 		    ctime(&mtime));
@@ -268,48 +254,46 @@ zil_prt_rec_setattr(zilog_t *zilog, int txtype, const void *arg)
 /* ARGSUSED */
 static void
-zil_prt_rec_acl(zilog_t *zilog, int txtype, const void *arg)
+zil_prt_rec_acl(zilog_t *zilog, int txtype, lr_acl_t *lr)
 {
-	const lr_acl_t *lr = arg;
+	(void) printf("%sfoid %llu, aclcnt %llu\n", prefix,
 	(void) printf("%sfoid %llu, aclcnt %llu\n", tab_prefix,
 	    (u_longlong_t)lr->lr_foid, (u_longlong_t)lr->lr_aclcnt);
 }
-typedef void (*zil_prt_rec_func_t)(zilog_t *, int, const void *);
+typedef void (*zil_prt_rec_func_t)(zilog_t *, int, void *);
 typedef struct zil_rec_info {
 	zil_prt_rec_func_t	zri_print;
-	const char		*zri_name;
+	char			*zri_name;
 	uint64_t		zri_count;
 } zil_rec_info_t;
 static zil_rec_info_t zil_rec_info[TX_MAX_TYPE] = {
-	{.zri_print = NULL,		    .zri_name = "Total              "},
+	{ NULL,			"Total              " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE          "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_CREATE          " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR           "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_MKDIR           " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKXATTR         "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_MKXATTR         " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_SYMLINK         "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_SYMLINK         " },
-	{.zri_print = zil_prt_rec_remove,   .zri_name = "TX_REMOVE          "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_remove,	"TX_REMOVE          " },
-	{.zri_print = zil_prt_rec_remove,   .zri_name = "TX_RMDIR           "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_remove,	"TX_RMDIR           " },
-	{.zri_print = zil_prt_rec_link,	    .zri_name = "TX_LINK            "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_link,		"TX_LINK            " },
-	{.zri_print = zil_prt_rec_rename,   .zri_name = "TX_RENAME          "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_rename,	"TX_RENAME          " },
-	{.zri_print = zil_prt_rec_write,    .zri_name = "TX_WRITE           "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_write,	"TX_WRITE           " },
-	{.zri_print = zil_prt_rec_truncate, .zri_name = "TX_TRUNCATE        "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_truncate,	"TX_TRUNCATE        " },
-	{.zri_print = zil_prt_rec_setattr,  .zri_name = "TX_SETATTR         "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_setattr,	"TX_SETATTR         " },
-	{.zri_print = zil_prt_rec_acl,	    .zri_name = "TX_ACL_V0          "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_acl,		"TX_ACL_V0          " },
-	{.zri_print = zil_prt_rec_acl,	    .zri_name = "TX_ACL_ACL         "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_acl,		"TX_ACL_ACL         " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ACL      "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_CREATE_ACL      " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ATTR     "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_CREATE_ATTR     " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_CREATE_ACL_ATTR "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_CREATE_ACL_ATTR " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ACL       "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_MKDIR_ACL       " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ATTR      "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_MKDIR_ATTR      " },
-	{.zri_print = zil_prt_rec_create,   .zri_name = "TX_MKDIR_ACL_ATTR  "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_create,	"TX_MKDIR_ACL_ATTR  " },
-	{.zri_print = zil_prt_rec_write,    .zri_name = "TX_WRITE2          "},
+	{ (zil_prt_rec_func_t)zil_prt_rec_write,	"TX_WRITE2          " },
 };
 /* ARGSUSED */
 static int
-print_log_record(zilog_t *zilog, const lr_t *lr, void *arg, uint64_t claim_txg)
+print_log_record(zilog_t *zilog, lr_t *lr, void *arg, uint64_t claim_txg)
 {
 	int txtype;
 	int verbose = MAX(dump_opt['d'], dump_opt['i']);
@@ -327,13 +311,8 @@ print_log_record(zilog_t *zilog, const lr_t *lr, void *arg, uint64_t claim_txg)
 	    (u_longlong_t)lr->lrc_txg,
 	    (u_longlong_t)lr->lrc_seq);
-	if (txtype && verbose >= 3) {
+	if (txtype && verbose >= 3)
-		if (!zilog->zl_os->os_encrypted) {
+		zil_rec_info[txtype].zri_print(zilog, txtype, lr);
 			zil_rec_info[txtype].zri_print(zilog, txtype, lr);
 		} else {
 			(void) printf("%s(encrypted)\n", tab_prefix);
 		}
 	}
 	zil_rec_info[txtype].zri_count++;
 	zil_rec_info[0].zri_count++;
@@ -343,12 +322,11 @@ print_log_record(zilog_t *zilog, const lr_t *lr, void *arg, uint64_t claim_txg)
 /* ARGSUSED */
 static int
-print_log_block(zilog_t *zilog, const blkptr_t *bp, void *arg,
+print_log_block(zilog_t *zilog, blkptr_t *bp, void *arg, uint64_t claim_txg)
    uint64_t claim_txg)
 {
 	char blkbuf[BP_SPRINTF_LEN + 10];
 	int verbose = MAX(dump_opt['d'], dump_opt['i']);
-	const char *claim;
+	char *claim;
 	if (verbose <= 3)
 		return (0);
@@ -363,7 +341,7 @@ print_log_block(zilog_t *zilog, const blkptr_t *bp, void *arg,
 	if (claim_txg != 0)
 		claim = "already claimed";
-	else if (bp->blk_birth >= spa_min_claim_txg(zilog->zl_spa))
+	else if (bp->blk_birth >= spa_first_txg(zilog->zl_spa))
 		claim = "will claim";
 	else
 		claim = "won't claim";
@@ -377,7 +355,7 @@ print_log_block(zilog_t *zilog, const blkptr_t *bp, void *arg,
 static void
 print_log_stats(int verbose)
 {
-	unsigned i, w, p10;
+	int i, w, p10;
 	if (verbose > 3)
 		(void) printf("\n");
@@ -418,15 +396,10 @@ dump_intent_log(zilog_t *zilog)
 	for (i = 0; i < TX_MAX_TYPE; i++)
 		zil_rec_info[i].zri_count = 0;
 	/* see comment in zil_claim() or zil_check_log_chain() */
 	if (zilog->zl_spa->spa_uberblock.ub_checkpoint_txg != 0 &&
 	    zh->zh_claim_txg == 0)
 		return;
 	if (verbose >= 2) {
 		(void) printf("\n");
 		(void) zil_parse(zilog, print_log_block, print_log_record, NULL,
-		    zh->zh_claim_txg, B_FALSE);
+		    zh->zh_claim_txg);
 		print_log_stats(verbose);
 	}
 }
@@ -1,8 +1,10 @@
 include $(top_srcdir)/config/Rules.am
-AM_CFLAGS += $(LIBUDEV_CFLAGS) $(LIBUUID_CFLAGS)
+DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
-SUBDIRS = zed.d
+EXTRA_DIST = zed.d/README
 sbin_PROGRAMS = zed
@@ -38,12 +40,55 @@ FMA_SRC = \
 zed_SOURCES = $(ZED_SRC) $(FMA_SRC)
 zed_LDADD = \
-	$(abs_top_builddir)/lib/libzfs/libzfs.la \
+	$(top_builddir)/lib/libavl/libavl.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la \
+	$(top_builddir)/lib/libspl/libspl.la \
-	$(abs_top_builddir)/lib/libuutil/libuutil.la
+	$(top_builddir)/lib/libuutil/libuutil.la \
 	$(top_builddir)/lib/libzpool/libzpool.la \
 	$(top_builddir)/lib/libzfs/libzfs.la \
 	$(top_builddir)/lib/libzfs_core/libzfs_core.la
-zed_LDADD += -lrt $(LIBUDEV_LIBS) $(LIBUUID_LIBS)
+zed_LDFLAGS = -lrt -pthread
 zed_LDFLAGS = -pthread
-EXTRA_DIST = agents/README.md
+zedconfdir = $(sysconfdir)/zfs/zed.d
 dist_zedconf_DATA = \
 	zed.d/zed-functions.sh \
 	zed.d/zed.rc
 zedexecdir = $(libexecdir)/zfs/zed.d
 dist_zedexec_SCRIPTS = \
 	zed.d/all-debug.sh \
 	zed.d/all-syslog.sh \
 	zed.d/data-notify.sh \
 	zed.d/generic-notify.sh \
 	zed.d/resilver_finish-notify.sh \
 	zed.d/scrub_finish-notify.sh \
 	zed.d/statechange-led.sh \
 	zed.d/statechange-notify.sh \
 	zed.d/vdev_clear-led.sh \
 	zed.d/vdev_attach-led.sh \
 	zed.d/pool_import-led.sh \
 	zed.d/resilver_finish-start-scrub.sh
 zedconfdefaults = \
 	all-syslog.sh \
 	data-notify.sh \
 	resilver_finish-notify.sh \
 	scrub_finish-notify.sh \
 	statechange-led.sh \
 	statechange-notify.sh \
 	vdev_clear-led.sh \
 	vdev_attach-led.sh \
 	pool_import-led.sh \
 	resilver_finish-start-scrub.sh
 install-data-hook:
 	$(MKDIR_P) "$(DESTDIR)$(zedconfdir)"
 	for f in $(zedconfdefaults); do \
 	  test -f "$(DESTDIR)$(zedconfdir)/$${f}" -o \
 	       -L "$(DESTDIR)$(zedconfdir)/$${f}" || \
 	    ln -s "$(zedexecdir)/$${f}" "$(DESTDIR)$(zedconfdir)"; \
 	done
 	chmod 0600 "$(DESTDIR)$(zedconfdir)/zed.rc"
@@ -25,7 +25,7 @@
 */
 /*
- * This file implements the minimal FMD module API required to support the
+ * This file imlements the minimal FMD module API required to support the
 * fault logic modules in ZED. This support includes module registration,
 * memory allocation, module property accessors, basic case management,
 * one-shot timers and SERD engines.
@@ -281,7 +281,7 @@ fmd_serd_eng_empty(fmd_serd_eng_t *sgp)
 void
 fmd_serd_eng_reset(fmd_serd_eng_t *sgp)
 {
-	serd_log_msg("  SERD Engine: resetting %s", sgp->sg_name);
+	serd_log_msg("  SERD Engine: reseting %s", sgp->sg_name);
 	while (sgp->sg_count != 0)
 		fmd_serd_eng_discard(sgp, list_head(&sgp->sg_list));
@@ -12,7 +12,6 @@
 /*
 * Copyright (c) 2016, Intel Corporation.
 * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>
 */
 #include <libnvpair.h>
@@ -54,25 +53,13 @@ pthread_t g_agents_tid;
 libzfs_handle_t *g_zfs_hdl;
 /* guid search data */
 typedef enum device_type {
 	DEVICE_TYPE_L2ARC,	/* l2arc device */
 	DEVICE_TYPE_SPARE,	/* spare device */
 	DEVICE_TYPE_PRIMARY	/* any primary pool storage device */
 } device_type_t;
 typedef struct guid_search {
 	uint64_t	gs_pool_guid;
 	uint64_t	gs_vdev_guid;
 	char		*gs_devid;
 	device_type_t	gs_vdev_type;
 	uint64_t	gs_vdev_expandtime;	/* vdev expansion time */
 } guid_search_t;
-/*
+static void
 * Walks the vdev tree recursively looking for a matching devid.
 * Returns B_TRUE as soon as a matching device is found, B_FALSE otherwise.
 */
 static boolean_t
 zfs_agent_iter_vdev(zpool_handle_t *zhp, nvlist_t *nvl, void *arg)
 {
 	guid_search_t *gsp = arg;
@@ -85,48 +72,19 @@ zfs_agent_iter_vdev(zpool_handle_t *zhp, nvlist_t *nvl, void *arg)
 	 */
 	if (nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_CHILDREN,
 	    &child, &children) == 0) {
-		for (c = 0; c < children; c++) {
+		for (c = 0; c < children; c++)
-			if (zfs_agent_iter_vdev(zhp, child[c], gsp)) {
+			zfs_agent_iter_vdev(zhp, child[c], gsp);
-				gsp->gs_vdev_type = DEVICE_TYPE_PRIMARY;
+		return;
 				return (B_TRUE);
 			}
 		}
 	}
 	/*
-	 * Iterate over any spares and cache devices
+	 * On a devid match, grab the vdev guid
 	 */
-	if (nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_SPARES,
+	if ((gsp->gs_vdev_guid == 0) &&
 	    &child, &children) == 0) {
 		for (c = 0; c < children; c++) {
 			if (zfs_agent_iter_vdev(zhp, child[c], gsp)) {
 				gsp->gs_vdev_type = DEVICE_TYPE_L2ARC;
 				return (B_TRUE);
 			}
 		}
 	}
 	if (nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_L2CACHE,
 	    &child, &children) == 0) {
 		for (c = 0; c < children; c++) {
 			if (zfs_agent_iter_vdev(zhp, child[c], gsp)) {
 				gsp->gs_vdev_type = DEVICE_TYPE_SPARE;
 				return (B_TRUE);
 			}
 		}
 	}
 	/*
 	 * On a devid match, grab the vdev guid and expansion time, if any.
 	 */
 	if (gsp->gs_devid != NULL &&
 	    (nvlist_lookup_string(nvl, ZPOOL_CONFIG_DEVID, &path) == 0) &&
 	    (strcmp(gsp->gs_devid, path) == 0)) {
 		(void) nvlist_lookup_uint64(nvl, ZPOOL_CONFIG_GUID,
 		    &gsp->gs_vdev_guid);
 		(void) nvlist_lookup_uint64(nvl, ZPOOL_CONFIG_EXPANSION_TIME,
 		    &gsp->gs_vdev_expandtime);
 		return (B_TRUE);
 	}
 	return (B_FALSE);
 }
 static int
@@ -141,7 +99,7 @@ zfs_agent_iter_pool(zpool_handle_t *zhp, void *arg)
 	if ((config = zpool_get_config(zhp, NULL)) != NULL) {
 		if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
 		    &nvl) == 0) {
-			(void) zfs_agent_iter_vdev(zhp, nvl, gsp);
+			zfs_agent_iter_vdev(zhp, nvl, gsp);
 		}
 	}
 	/*
@@ -177,12 +135,10 @@ zfs_agent_post_event(const char *class, const char *subclass, nvlist_t *nvl)
 	}
 	/*
-	 * On Linux, we don't get the expected FM_RESOURCE_REMOVED ereport
+	 * On ZFS on Linux, we don't get the expected FM_RESOURCE_REMOVED
-	 * from the vdev_disk layer after a hot unplug. Fortunately we do
+	 * ereport from vdev_disk layer after a hot unplug. Fortunately we
-	 * get an EC_DEV_REMOVE from our disk monitor and it is a suitable
+	 * get a EC_DEV_REMOVE from our disk monitor and it is a suitable
 	 * proxy so we remap it here for the benefit of the diagnosis engine.
 	 * Starting in OpenZFS 2.0, we do get FM_RESOURCE_REMOVED from the spa
 	 * layer. Processing multiple FM_RESOURCE_REMOVED events is not harmful.
 	 */
 	if ((strcmp(class, EC_DEV_REMOVE) == 0) &&
 	    (strcmp(subclass, ESC_DISK) == 0) &&
@@ -192,8 +148,6 @@ zfs_agent_post_event(const char *class, const char *subclass, nvlist_t *nvl)
 		struct timeval tv;
 		int64_t tod[2];
 		uint64_t pool_guid = 0, vdev_guid = 0;
 		guid_search_t search = { 0 };
 		device_type_t devtype = DEVICE_TYPE_PRIMARY;
 		class = "resource.fs.zfs.removed";
 		subclass = "";
@@ -202,55 +156,30 @@ zfs_agent_post_event(const char *class, const char *subclass, nvlist_t *nvl)
 		(void) nvlist_lookup_uint64(nvl, ZFS_EV_POOL_GUID, &pool_guid);
 		(void) nvlist_lookup_uint64(nvl, ZFS_EV_VDEV_GUID, &vdev_guid);
 		(void) gettimeofday(&tv, NULL);
 		tod[0] = tv.tv_sec;
 		tod[1] = tv.tv_usec;
 		(void) nvlist_add_int64_array(payload, FM_EREPORT_TIME, tod, 2);
 		/*
-		 * For multipath, spare and l2arc devices ZFS_EV_VDEV_GUID or
+		 * For multipath, ZFS_EV_VDEV_GUID is missing so find it.
 		 * ZFS_EV_POOL_GUID may be missing so find them.
 		 */
-		(void) nvlist_lookup_string(nvl, DEV_IDENTIFIER,
+		if (vdev_guid == 0) {
-		    &search.gs_devid);
+			guid_search_t search = { 0 };
 		(void) zpool_iter(g_zfs_hdl, zfs_agent_iter_pool, &search);
 		pool_guid = search.gs_pool_guid;
 		vdev_guid = search.gs_vdev_guid;
 		devtype = search.gs_vdev_type;
-		/*
+			(void) nvlist_lookup_string(nvl, DEV_IDENTIFIER,
-		 * We want to avoid reporting "remove" events coming from
+			    &search.gs_devid);
-		 * libudev for VDEVs which were expanded recently (10s) and
+
-		 * avoid activating spares in response to partitions being
+			(void) zpool_iter(g_zfs_hdl, zfs_agent_iter_pool,
-		 * deleted and created in rapid succession.
+			    &search);
-		 */
+			pool_guid = search.gs_pool_guid;
-		if (search.gs_vdev_expandtime != 0 &&
+			vdev_guid = search.gs_vdev_guid;
 		    search.gs_vdev_expandtime + 10 > tv.tv_sec) {
 			zed_log_msg(LOG_INFO, "agent post event: ignoring '%s' "
 			    "for recently expanded device '%s'", EC_DEV_REMOVE,
 			    search.gs_devid);
 			goto out;
 		}
 		(void) nvlist_add_uint64(payload,
 		    FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, pool_guid);
 		(void) nvlist_add_uint64(payload,
 		    FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, vdev_guid);
-		switch (devtype) {
+
-		case DEVICE_TYPE_L2ARC:
+		(void) gettimeofday(&tv, NULL);
-			(void) nvlist_add_string(payload,
+		tod[0] = tv.tv_sec;
-			    FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE,
+		tod[1] = tv.tv_usec;
-			    VDEV_TYPE_L2CACHE);
+		(void) nvlist_add_int64_array(payload, FM_EREPORT_TIME, tod, 2);
 			break;
 		case DEVICE_TYPE_SPARE:
 			(void) nvlist_add_string(payload,
 			    FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE, VDEV_TYPE_SPARE);
 			break;
 		case DEVICE_TYPE_PRIMARY:
 			(void) nvlist_add_string(payload,
 			    FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE, VDEV_TYPE_DISK);
 			break;
 		}
 		zed_log_msg(LOG_INFO, "agent post event: mapping '%s' to '%s'",
 		    EC_DEV_REMOVE, class);
@@ -264,7 +193,6 @@ zfs_agent_post_event(const char *class, const char *subclass, nvlist_t *nvl)
 	list_insert_tail(&agent_events, event);
 	(void) pthread_mutex_unlock(&agent_lock);
 out:
 	(void) pthread_cond_signal(&agent_cond);
 }
@@ -422,3 +350,19 @@ zfs_agent_fini(void)
 	g_zfs_hdl = NULL;
 }
 /*
 * In ZED context, all the FMA agents run in the same thread
 * and do not require a unique libzfs instance. Modules should
 * use these stubs.
 */
 libzfs_handle_t *
 __libzfs_init(void)
 {
 	return (g_zfs_hdl);
 }
 void
 __libzfs_fini(libzfs_handle_t *hdl)
 {
 }
@@ -39,6 +39,13 @@ extern int zfs_slm_init(void);
 extern void zfs_slm_fini(void);
 extern void zfs_slm_event(const char *, const char *, nvlist_t *);
 /*
 * In ZED context, all the FMA agents run in the same thread
 * and do not require a unique libzfs instance.
 */
 extern libzfs_handle_t *__libzfs_init(void);
 extern void __libzfs_fini(libzfs_handle_t *);
 #ifdef	__cplusplus
 }
 #endif
@@ -26,7 +26,6 @@
 */
 #include <stddef.h>
 #include <string.h>
 #include <strings.h>
 #include <libuutil.h>
 #include <libzfs.h>
@@ -168,12 +167,14 @@ zfs_case_unserialize(fmd_hdl_t *hdl, fmd_case_t *cp)
 static void
 zfs_mark_vdev(uint64_t pool_guid, nvlist_t *vd, er_timeval_t *loaded)
 {
-	uint64_t vdev_guid = 0;
+	uint64_t vdev_guid;
 	uint_t c, children;
 	nvlist_t **child;
 	zfs_case_t *zcp;
 	int ret;
-	(void) nvlist_lookup_uint64(vd, ZPOOL_CONFIG_GUID, &vdev_guid);
+	ret = nvlist_lookup_uint64(vd, ZPOOL_CONFIG_GUID, &vdev_guid);
 	assert(ret == 0);
 	/*
 	 * Mark any cases associated with this (pool, vdev) pair.
@@ -252,10 +253,7 @@ zfs_mark_pool(zpool_handle_t *zhp, void *unused)
 	}
 	ret = nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, &vd);
-	if (ret) {
+	assert(ret == 0);
 		zpool_close(zhp);
 		return (-1);
 	}
 	zfs_mark_vdev(pool_guid, vd, &loaded);
@@ -379,6 +377,11 @@ zfs_case_solve(fmd_hdl_t *hdl, zfs_case_t *zcp, const char *faultname,
 	nvlist_t *detector, *fault;
 	boolean_t serialize;
 	nvlist_t *fru = NULL;
 #ifdef HAVE_LIBTOPO
 	nvlist_t *fmri;
 	topo_hdl_t *thp;
 	int err;
 #endif
 	fmd_hdl_debug(hdl, "solving fault '%s'", faultname);
 	/*
@@ -397,6 +400,64 @@ zfs_case_solve(fmd_hdl_t *hdl, zfs_case_t *zcp, const char *faultname,
 		    zcp->zc_data.zc_vdev_guid);
 	}
 #ifdef HAVE_LIBTOPO
 	/*
 	 * We also want to make sure that the detector (pool or vdev) properly
 	 * reflects the diagnosed state, when the fault corresponds to internal
 	 * ZFS state (i.e. not checksum or I/O error-induced).  Otherwise, a
 	 * device which was unavailable early in boot (because the driver/file
 	 * wasn't available) and is now healthy will be mis-diagnosed.
 	 */
 	if (!fmd_nvl_fmri_present(hdl, detector) ||
 	    (checkunusable && !fmd_nvl_fmri_unusable(hdl, detector))) {
 		fmd_case_close(hdl, zcp->zc_case);
 		nvlist_free(detector);
 		return;
 	}
 	fru = NULL;
 	if (zcp->zc_fru != NULL &&
 	    (thp = fmd_hdl_topo_hold(hdl, TOPO_VERSION)) != NULL) {
 		/*
 		 * If the vdev had an associated FRU, then get the FRU nvlist
 		 * from the topo handle and use that in the suspect list.  We
 		 * explicitly lookup the FRU because the fmri reported from the
 		 * kernel may not have up to date details about the disk itself
 		 * (serial, part, etc).
 		 */
 		if (topo_fmri_str2nvl(thp, zcp->zc_fru, &fmri, &err) == 0) {
 			libzfs_handle_t *zhdl = fmd_hdl_getspecific(hdl);
 			/*
 			 * If the disk is part of the system chassis, but the
 			 * FRU indicates a different chassis ID than our
 			 * current system, then ignore the error.  This
 			 * indicates that the device was part of another
 			 * cluster head, and for obvious reasons cannot be
 			 * imported on this system.
 			 */
 			if (libzfs_fru_notself(zhdl, zcp->zc_fru)) {
 				fmd_case_close(hdl, zcp->zc_case);
 				nvlist_free(fmri);
 				fmd_hdl_topo_rele(hdl, thp);
 				nvlist_free(detector);
 				return;
 			}
 			/*
 			 * If the device is no longer present on the system, or
 			 * topo_fmri_fru() fails for other reasons, then fall
 			 * back to the fmri specified in the vdev.
 			 */
 			if (topo_fmri_fru(thp, fmri, &fru, &err) != 0)
 				fru = fmd_nvl_dup(hdl, fmri, FMD_SLEEP);
 			nvlist_free(fmri);
 		}
 		fmd_hdl_topo_rele(hdl, thp);
 	}
 #endif
 	fault = fmd_nvl_create_fault(hdl, faultname, 100, detector,
 	    fru, detector);
 	fmd_case_add_suspect(hdl, zcp->zc_case, fault);
@@ -921,27 +982,27 @@ _zfs_diagnosis_init(fmd_hdl_t *hdl)
 {
 	libzfs_handle_t *zhdl;
-	if ((zhdl = libzfs_init()) == NULL)
+	if ((zhdl = __libzfs_init()) == NULL)
 		return;
 	if ((zfs_case_pool = uu_list_pool_create("zfs_case_pool",
 	    sizeof (zfs_case_t), offsetof(zfs_case_t, zc_node),
 	    NULL, UU_LIST_POOL_DEBUG)) == NULL) {
-		libzfs_fini(zhdl);
+		__libzfs_fini(zhdl);
 		return;
 	}
 	if ((zfs_cases = uu_list_create(zfs_case_pool, NULL,
 	    UU_LIST_DEBUG)) == NULL) {
 		uu_list_pool_destroy(zfs_case_pool);
-		libzfs_fini(zhdl);
+		__libzfs_fini(zhdl);
 		return;
 	}
 	if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0) {
 		uu_list_destroy(zfs_cases);
 		uu_list_pool_destroy(zfs_case_pool);
-		libzfs_fini(zhdl);
+		__libzfs_fini(zhdl);
 		return;
 	}
@@ -977,5 +1038,5 @@ _zfs_diagnosis_fini(fmd_hdl_t *hdl)
 	uu_list_pool_destroy(zfs_case_pool);
 	zhdl = fmd_hdl_getspecific(hdl);
-	libzfs_fini(zhdl);
+	__libzfs_fini(zhdl);
 }
@@ -23,7 +23,6 @@
 * Copyright (c) 2012 by Delphix. All rights reserved.
 * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
 * Copyright (c) 2016, 2017, Intel Corporation.
 * Copyright (c) 2017 Open-E, Inc. All Rights Reserved.
 */
 /*
@@ -63,14 +62,17 @@
 * If the device could not be replaced, then the second online attempt will
 * trigger the FMA fault that we skipped earlier.
 *
- * On Linux udev provides a disk insert for both the disk and the partition.
+ * ZFS on Linux porting notes:
 *	In lieu of a thread pool, just spawn a thread on demmand.
 *	Linux udev provides a disk insert for both the disk and the partition
 *
 */
 #include <ctype.h>
 #include <devid.h>
 #include <fcntl.h>
 #include <libnvpair.h>
 #include <libzfs.h>
 #include <libzutil.h>
 #include <limits.h>
 #include <stddef.h>
 #include <stdlib.h>
@@ -80,10 +82,8 @@
 #include <sys/sunddi.h>
 #include <sys/sysevent/eventdefs.h>
 #include <sys/sysevent/dev.h>
 #include <thread_pool.h>
 #include <pthread.h>
 #include <unistd.h>
 #include <errno.h>
 #include "zfs_agents.h"
 #include "../zed_log.h"
@@ -96,12 +96,12 @@ typedef void (*zfs_process_func_t)(zpool_handle_t *, nvlist_t *, boolean_t);
 libzfs_handle_t *g_zfshdl;
 list_t g_pool_list;	/* list of unavailable pools at initialization */
 list_t g_device_list;	/* list of disks with asynchronous label request */
 tpool_t *g_tpool;
 boolean_t g_enumeration_done;
-pthread_t g_zfs_tid;	/* zfs_enum_pools() thread */
+pthread_t g_zfs_tid;
 typedef struct unavailpool {
 	zpool_handle_t	*uap_zhp;
 	pthread_t	uap_enable_tid;	/* dataset enable thread if activated */
 	list_node_t	uap_node;
 } unavailpool_t;
@@ -134,6 +134,7 @@ zfs_unavail_pool(zpool_handle_t *zhp, void *data)
 		unavailpool_t *uap;
 		uap = malloc(sizeof (unavailpool_t));
 		uap->uap_zhp = zhp;
 		uap->uap_enable_tid = 0;
 		list_insert_tail((list_t *)data, uap);
 	} else {
 		zpool_close(zhp);
@@ -154,7 +155,7 @@ zfs_unavail_pool(zpool_handle_t *zhp, void *data)
 * 1. physical match with no fs, no partition
 *	tag it top, partition disk
 *
- * 2. physical match again, see partition and tag
+ * 2. physical match again, see partion and tag
 *
 */
@@ -189,8 +190,8 @@ zfs_process_add(zpool_handle_t *zhp, nvlist_t *vdev, boolean_t labeled)
 	char rawpath[PATH_MAX], fullpath[PATH_MAX];
 	char devpath[PATH_MAX];
 	int ret;
-	boolean_t is_dm = B_FALSE;
+	int is_dm = 0;
-	boolean_t is_sd = B_FALSE;
+	int is_sd = 0;
 	uint_t c;
 	vdev_stat_t *vs;
@@ -218,8 +219,8 @@ zfs_process_add(zpool_handle_t *zhp, nvlist_t *vdev, boolean_t labeled)
 	is_dm = zfs_dev_is_dm(path);
 	zed_log_msg(LOG_INFO, "zfs_process_add: pool '%s' vdev '%s', phys '%s'"
-	    " wholedisk %d, %s dm (guid %llu)", zpool_get_name(zhp), path,
+	    " wholedisk %d, dm %d (%llu)", zpool_get_name(zhp), path,
-	    physpath ? physpath : "NULL", wholedisk, is_dm ? "is" : "not",
+	    physpath ? physpath : "NULL", wholedisk, is_dm,
 	    (long long unsigned int)guid);
 	/*
@@ -264,7 +265,7 @@ zfs_process_add(zpool_handle_t *zhp, nvlist_t *vdev, boolean_t labeled)
 	 * testing)
 	 */
 	if (physpath != NULL && strcmp("scsidebug", physpath) == 0)
-		is_sd = B_TRUE;
+		is_sd = 1;
 	/*
 	 * If the pool doesn't have the autoreplace property set, then use
@@ -425,17 +426,9 @@ zfs_process_add(zpool_handle_t *zhp, nvlist_t *vdev, boolean_t labeled)
 	nvlist_free(newvd);
 	/*
-	 * Wait for udev to verify the links exist, then auto-replace
+	 * auto replace a leaf disk at same physical location
 	 * the leaf disk at same physical location.
 	 */
-	if (zpool_label_disk_wait(path, 3000) != 0) {
+	ret = zpool_vdev_attach(zhp, fullpath, path, nvroot, B_TRUE);
 		zed_log_msg(LOG_WARNING, "zfs_mod: expected replacement "
 		    "disk %s is missing", path);
 		nvlist_free(nvroot);
 		return;
 	}
 	ret = zpool_vdev_attach(zhp, fullpath, path, nvroot, B_TRUE, B_FALSE);
 	zed_log_msg(LOG_INFO, "  zpool_vdev_replace: %s with %s (%s)",
 	    fullpath, path, (ret == 0) ? "no errors" :
@@ -473,20 +466,7 @@ zfs_iter_vdev(zpool_handle_t *zhp, nvlist_t *nvl, void *data)
 	    &child, &children) == 0) {
 		for (c = 0; c < children; c++)
 			zfs_iter_vdev(zhp, child[c], data);
-	}
+		return;
 	/*
 	 * Iterate over any spares and cache devices
 	 */
 	if (nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_SPARES,
 	    &child, &children) == 0) {
 		for (c = 0; c < children; c++)
 			zfs_iter_vdev(zhp, child[c], data);
 	}
 	if (nvlist_lookup_nvlist_array(nvl, ZPOOL_CONFIG_L2CACHE,
 	    &child, &children) == 0) {
 		for (c = 0; c < children; c++)
 			zfs_iter_vdev(zhp, child[c], data);
 	}
 	/* once a vdev was matched and processed there is nothing left to do */
@@ -531,14 +511,19 @@ zfs_iter_vdev(zpool_handle_t *zhp, nvlist_t *nvl, void *data)
 	(dp->dd_func)(zhp, nvl, dp->dd_islabeled);
 }
-static void
+static void *
 zfs_enable_ds(void *arg)
 {
 	unavailpool_t *pool = (unavailpool_t *)arg;
 	assert(pool->uap_enable_tid = pthread_self());
 	(void) zpool_enable_datasets(pool->uap_zhp, NULL, 0);
 	zpool_close(pool->uap_zhp);
-	free(pool);
+	pool->uap_zhp = NULL;
 	/* Note: zfs_slm_fini() will cleanup this pool entry on exit */
 	return (NULL);
 }
 static int
@@ -573,13 +558,15 @@ zfs_iter_pool(zpool_handle_t *zhp, void *data)
 		for (pool = list_head(&g_pool_list); pool != NULL;
 		    pool = list_next(&g_pool_list, pool)) {
 			if (pool->uap_enable_tid != 0)
 				continue;	/* entry already processed */
 			if (strcmp(zpool_get_name(zhp),
 			    zpool_get_name(pool->uap_zhp)))
 				continue;
 			if (zfs_toplevel_state(zhp) >= VDEV_STATE_DEGRADED) {
-				list_remove(&g_pool_list, pool);
+				/* send to a background thread; keep on list */
-				(void) tpool_dispatch(g_tpool, zfs_enable_ds,
+				(void) pthread_create(&pool->uap_enable_tid,
-				    pool);
+				    NULL, zfs_enable_ds, pool);
 				break;
 			}
 		}
@@ -671,7 +658,7 @@ zfs_deliver_add(nvlist_t *nvl, boolean_t is_lofi)
 	    devid, devpath ? devpath : "NULL", is_slice);
 	/*
-	 * Iterate over all vdevs looking for a match in the following order:
+	 * Iterate over all vdevs looking for a match in the folllowing order:
 	 * 1. ZPOOL_CONFIG_DEVID (identifies the unique disk)
 	 * 2. ZPOOL_CONFIG_PHYS_PATH (identifies disk physical location).
 	 *
@@ -716,8 +703,8 @@ zfsdle_vdev_online(zpool_handle_t *zhp, void *data)
 {
 	char *devname = data;
 	boolean_t avail_spare, l2cache;
 	vdev_state_t newstate;
 	nvlist_t *tgt;
 	int error;
 	zed_log_msg(LOG_INFO, "zfsdle_vdev_online: searching for '%s' in '%s'",
 	    devname, zpool_get_name(zhp));
@@ -725,58 +712,40 @@ zfsdle_vdev_online(zpool_handle_t *zhp, void *data)
 	if ((tgt = zpool_find_vdev_by_physpath(zhp, devname,
 	    &avail_spare, &l2cache, NULL)) != NULL) {
 		char *path, fullpath[MAXPATHLEN];
-		uint64_t wholedisk;
+		uint64_t wholedisk = 0ULL;
-		error = nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH, &path);
+		verify(nvlist_lookup_string(tgt, ZPOOL_CONFIG_PATH,
-		if (error) {
+		    &path) == 0);
-			zpool_close(zhp);
+		verify(nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK,
-			return (0);
+		    &wholedisk) == 0);
 		}
 		error = nvlist_lookup_uint64(tgt, ZPOOL_CONFIG_WHOLE_DISK,
 		    &wholedisk);
 		if (error)
 			wholedisk = 0;
 		(void) strlcpy(fullpath, path, sizeof (fullpath));
 		if (wholedisk) {
-			path = strrchr(path, '/');
+			char *spath = zfs_strip_partition(fullpath);
-			if (path != NULL) {
+			if (!spath) {
-				path = zfs_strip_partition(path + 1);
+				zed_log_msg(LOG_INFO, "%s: Can't alloc",
-				if (path == NULL) {
+				    __func__);
 					zpool_close(zhp);
 					return (0);
 				}
 			} else {
 				zpool_close(zhp);
 				return (0);
 			}
-			(void) strlcpy(fullpath, path, sizeof (fullpath));
+			(void) strlcpy(fullpath, spath, sizeof (fullpath));
-			free(path);
+			free(spath);
 			/*
 			 * We need to reopen the pool associated with this
-			 * device so that the kernel can update the size of
+			 * device so that the kernel can update the size
-			 * the expanded device.  When expanding there is no
+			 * of the expanded device.
 			 * need to restart the scrub from the beginning.
 			 */
-			boolean_t scrub_restart = B_FALSE;
+			(void) zpool_reopen(zhp);
 			(void) zpool_reopen_one(zhp, &scrub_restart);
 		} else {
 			(void) strlcpy(fullpath, path, sizeof (fullpath));
 		}
 		if (zpool_get_prop_int(zhp, ZPOOL_PROP_AUTOEXPAND, NULL)) {
-			vdev_state_t newstate;
+			zed_log_msg(LOG_INFO, "zfsdle_vdev_online: setting "
-
+			    "device '%s' to ONLINE state in pool '%s'",
-			if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL) {
+			    fullpath, zpool_get_name(zhp));
-				error = zpool_vdev_online(zhp, fullpath, 0,
+			if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL)
 				(void) zpool_vdev_online(zhp, fullpath, 0,
 				    &newstate);
 				zed_log_msg(LOG_INFO, "zfsdle_vdev_online: "
 				    "setting device '%s' to ONLINE state "
 				    "in pool '%s': %d", fullpath,
 				    zpool_get_name(zhp), error);
 			}
 		}
 		zpool_close(zhp);
 		return (1);
@@ -786,32 +755,23 @@ zfsdle_vdev_online(zpool_handle_t *zhp, void *data)
 }
 /*
- * This function handles the ESC_DEV_DLE device change event.  Use the
+ * This function handles the ESC_DEV_DLE event.
 * provided vdev guid when looking up a disk or partition, when the guid
 * is not present assume the entire disk is owned by ZFS and append the
 * expected -part1 partition information then lookup by physical path.
 */
 static int
 zfs_deliver_dle(nvlist_t *nvl)
 {
-	char *devname, name[MAXPATHLEN];
+	char *devname;
 	uint64_t guid;
-	if (nvlist_lookup_uint64(nvl, ZFS_EV_VDEV_GUID, &guid) == 0) {
+	if (nvlist_lookup_string(nvl, DEV_PHYS_PATH, &devname) != 0) {
-		sprintf(name, "%llu", (u_longlong_t)guid);
+		zed_log_msg(LOG_INFO, "zfs_deliver_dle: no physpath");
-	} else if (nvlist_lookup_string(nvl, DEV_PHYS_PATH, &devname) == 0) {
+		return (-1);
 		strlcpy(name, devname, MAXPATHLEN);
 		zfs_append_partition(name, MAXPATHLEN);
 	} else {
 		zed_log_msg(LOG_INFO, "zfs_deliver_dle: no guid or physpath");
 	}
-	if (zpool_iter(g_zfshdl, zfsdle_vdev_online, name) != 1) {
+	if (zpool_iter(g_zfshdl, zfsdle_vdev_online, devname) != 1) {
 		zed_log_msg(LOG_INFO, "zfs_deliver_dle: device '%s' not "
-		    "found", name);
+		    "found", devname);
 		return (1);
 	}
 	return (0);
 }
@@ -889,12 +849,12 @@ zfs_enum_pools(void *arg)
 *
 * sent messages from zevents or udev monitor
 *
- * For now, each agent has its own libzfs instance
+ * For now, each agent has it's own libzfs instance
 */
 int
 zfs_slm_init()
 {
-	if ((g_zfshdl = libzfs_init()) == NULL)
+	if ((g_zfshdl = __libzfs_init()) == NULL)
 		return (-1);
 	/*
@@ -906,7 +866,7 @@ zfs_slm_init()
 	if (pthread_create(&g_zfs_tid, NULL, zfs_enum_pools, NULL) != 0) {
 		list_destroy(&g_pool_list);
-		libzfs_fini(g_zfshdl);
+		__libzfs_fini(g_zfshdl);
 		return (-1);
 	}
@@ -924,15 +884,19 @@ zfs_slm_fini()
 	/* wait for zfs_enum_pools thread to complete */
 	(void) pthread_join(g_zfs_tid, NULL);
 	/* destroy the thread pool */
 	if (g_tpool != NULL) {
 		tpool_wait(g_tpool);
 		tpool_destroy(g_tpool);
 	}
 	while ((pool = (list_head(&g_pool_list))) != NULL) {
 		/*
 		 * each pool entry has two possibilities
 		 * 1. was made available (so wait for zfs_enable_ds thread)
 		 * 2. still unavailable (just close the pool)
 		 */
 		if (pool->uap_enable_tid)
 			(void) pthread_join(pool->uap_enable_tid, NULL);
 		else if (pool->uap_zhp != NULL)
 			zpool_close(pool->uap_zhp);
 		list_remove(&g_pool_list, pool);
 		zpool_close(pool->uap_zhp);
 		free(pool);
 	}
 	list_destroy(&g_pool_list);
@@ -943,7 +907,7 @@ zfs_slm_fini()
 	}
 	list_destroy(&g_device_list);
-	libzfs_fini(g_zfshdl);
+	__libzfs_fini(g_zfshdl);
 }
 void
@@ -22,7 +22,6 @@
 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
 *
 * Copyright (c) 2016, Intel Corporation.
 * Copyright (c) 2018, loli10K <ezomori.nozomu@gmail.com>
 */
 /*
@@ -72,6 +71,7 @@ zfs_retire_clear_data(fmd_hdl_t *hdl, zfs_retire_data_t *zdp)
 */
 typedef struct find_cbdata {
 	uint64_t	cb_guid;
 	const char	*cb_fru;
 	zpool_handle_t	*cb_zhp;
 	nvlist_t	*cb_vdev;
 } find_cbdata_t;
@@ -95,18 +95,26 @@ find_pool(zpool_handle_t *zhp, void *data)
 * Find a vdev within a tree with a matching GUID.
 */
 static nvlist_t *
-find_vdev(libzfs_handle_t *zhdl, nvlist_t *nv, uint64_t search_guid)
+find_vdev(libzfs_handle_t *zhdl, nvlist_t *nv, const char *search_fru,
    uint64_t search_guid)
 {
 	uint64_t guid;
 	nvlist_t **child;
 	uint_t c, children;
 	nvlist_t *ret;
 	char *fru;
-	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
+	if (search_fru != NULL) {
-	    guid == search_guid) {
+		if (nvlist_lookup_string(nv, ZPOOL_CONFIG_FRU, &fru) == 0 &&
-		fmd_hdl_debug(fmd_module_hdl("zfs-retire"),
+		    libzfs_fru_compare(zhdl, fru, search_fru))
-		    "matched vdev %llu", guid);
+			return (nv);
-		return (nv);
+	} else {
 		if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) == 0 &&
 		    guid == search_guid) {
 			fmd_hdl_debug(fmd_module_hdl("zfs-retire"),
 			    "matched vdev %llu", guid);
 			return (nv);
 		}
 	}
 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
@@ -114,7 +122,8 @@ find_vdev(libzfs_handle_t *zhdl, nvlist_t *nv, uint64_t search_guid)
 		return (NULL);
 	for (c = 0; c < children; c++) {
-		if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
+		if ((ret = find_vdev(zhdl, child[c], search_fru,
 		    search_guid)) != NULL)
 			return (ret);
 	}
@@ -123,16 +132,8 @@ find_vdev(libzfs_handle_t *zhdl, nvlist_t *nv, uint64_t search_guid)
 		return (NULL);
 	for (c = 0; c < children; c++) {
-		if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
+		if ((ret = find_vdev(zhdl, child[c], search_fru,
-			return (ret);
+		    search_guid)) != NULL)
 	}
 	if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_SPARES,
 	    &child, &children) != 0)
 		return (NULL);
 	for (c = 0; c < children; c++) {
 		if ((ret = find_vdev(zhdl, child[c], search_guid)) != NULL)
 			return (ret);
 	}
@@ -166,7 +167,8 @@ find_by_guid(libzfs_handle_t *zhdl, uint64_t pool_guid, uint64_t vdev_guid,
 	}
 	if (vdev_guid != 0) {
-		if ((*vdevp = find_vdev(zhdl, nvroot, vdev_guid)) == NULL) {
+		if ((*vdevp = find_vdev(zhdl, nvroot, NULL,
 		    vdev_guid)) == NULL) {
 			zpool_close(zhp);
 			return (NULL);
 		}
@@ -175,37 +177,72 @@ find_by_guid(libzfs_handle_t *zhdl, uint64_t pool_guid, uint64_t vdev_guid,
 	return (zhp);
 }
 #ifdef HAVE_LIBTOPO
 static int
 search_pool(zpool_handle_t *zhp, void *data)
 {
 	find_cbdata_t *cbp = data;
 	nvlist_t *config;
 	nvlist_t *nvroot;
 	config = zpool_get_config(zhp, NULL);
 	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
 	    &nvroot) != 0) {
 		zpool_close(zhp);
 		return (0);
 	}
 	if ((cbp->cb_vdev = find_vdev(zpool_get_handle(zhp), nvroot,
 	    cbp->cb_fru, 0)) != NULL) {
 		cbp->cb_zhp = zhp;
 		return (1);
 	}
 	zpool_close(zhp);
 	return (0);
 }
 /*
 * Given a FRU FMRI, find the matching pool and vdev.
 */
 static zpool_handle_t *
 find_by_fru(libzfs_handle_t *zhdl, const char *fru, nvlist_t **vdevp)
 {
 	find_cbdata_t cb;
 	cb.cb_fru = fru;
 	cb.cb_zhp = NULL;
 	if (zpool_iter(zhdl, search_pool, &cb) != 1)
 		return (NULL);
 	*vdevp = cb.cb_vdev;
 	return (cb.cb_zhp);
 }
 #endif /* HAVE_LIBTOPO */
 /*
 * Given a vdev, attempt to replace it with every known spare until one
- * succeeds or we run out of devices to try.
+ * succeeds.
 * Return whether we were successful or not in replacing the device.
 */
-static boolean_t
+static void
 replace_with_spare(fmd_hdl_t *hdl, zpool_handle_t *zhp, nvlist_t *vdev)
 {
 	nvlist_t *config, *nvroot, *replacement;
 	nvlist_t **spares;
 	uint_t s, nspares;
 	char *dev_name;
 	zprop_source_t source;
 	int ashift;
 	config = zpool_get_config(zhp, NULL);
 	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
 	    &nvroot) != 0)
-		return (B_FALSE);
+		return;
 	/*
 	 * Find out if there are any hot spares available in the pool.
 	 */
 	if (nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_SPARES,
 	    &spares, &nspares) != 0)
-		return (B_FALSE);
+		return;
 	/*
 	 * lookup "ashift" pool property, we may need it for the replacement
 	 */
 	ashift = zpool_get_prop_int(zhp, ZPOOL_PROP_ASHIFT, &source);
 	replacement = fmd_nvl_alloc(hdl, FMD_SLEEP);
@@ -225,11 +262,6 @@ replace_with_spare(fmd_hdl_t *hdl, zpool_handle_t *zhp, nvlist_t *vdev)
 		    &spare_name) != 0)
 			continue;
 		/* if set, add the "ashift" pool property to the spare nvlist */
 		if (source != ZPROP_SRC_DEFAULT)
 			(void) nvlist_add_uint64(spares[s],
 			    ZPOOL_CONFIG_ASHIFT, ashift);
 		(void) nvlist_add_nvlist_array(replacement,
 		    ZPOOL_CONFIG_CHILDREN, &spares[s], 1);
@@ -237,17 +269,12 @@ replace_with_spare(fmd_hdl_t *hdl, zpool_handle_t *zhp, nvlist_t *vdev)
 		    dev_name, basename(spare_name));
 		if (zpool_vdev_attach(zhp, dev_name, spare_name,
-		    replacement, B_TRUE, B_FALSE) == 0) {
+		    replacement, B_TRUE) == 0)
-			free(dev_name);
+			break;
 			nvlist_free(replacement);
 			return (B_TRUE);
 		}
 	}
 	free(dev_name);
 	nvlist_free(replacement);
 	return (B_FALSE);
 }
 /*
@@ -262,6 +289,10 @@ zfs_vdev_repair(fmd_hdl_t *hdl, nvlist_t *nvl)
 	zfs_retire_data_t *zdp = fmd_hdl_getspecific(hdl);
 	zfs_retire_repaired_t *zrp;
 	uint64_t pool_guid, vdev_guid;
 #ifdef HAVE_LIBTOPO
 	nvlist_t *asru;
 #endif
 	if (nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_POOL_GUID,
 	    &pool_guid) != 0 || nvlist_lookup_uint64(nvl,
 	    FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, &vdev_guid) != 0)
@@ -284,6 +315,47 @@ zfs_vdev_repair(fmd_hdl_t *hdl, nvlist_t *nvl)
 			return;
 	}
 #ifdef HAVE_LIBTOPO
 	asru = fmd_nvl_alloc(hdl, FMD_SLEEP);
 	(void) nvlist_add_uint8(asru, FM_VERSION, ZFS_SCHEME_VERSION0);
 	(void) nvlist_add_string(asru, FM_FMRI_SCHEME, FM_FMRI_SCHEME_ZFS);
 	(void) nvlist_add_uint64(asru, FM_FMRI_ZFS_POOL, pool_guid);
 	(void) nvlist_add_uint64(asru, FM_FMRI_ZFS_VDEV, vdev_guid);
 	/*
 	 * We explicitly check for the unusable state here to make sure we
 	 * aren't responding to a transient state change.  As part of opening a
 	 * vdev, it's possible to see the 'statechange' event, only to be
 	 * followed by a vdev failure later.  If we don't check the current
 	 * state of the vdev (or pool) before marking it repaired, then we risk
 	 * generating spurious repair events followed immediately by the same
 	 * diagnosis.
 	 *
 	 * This assumes that the ZFS scheme code associated unusable (i.e.
 	 * isolated) with its own definition of faulty state.  In the case of a
 	 * DEGRADED leaf vdev (due to checksum errors), this is not the case.
 	 * This works, however, because the transient state change is not
 	 * posted in this case.  This could be made more explicit by not
 	 * relying on the scheme's unusable callback and instead directly
 	 * checking the vdev state, where we could correctly account for
 	 * DEGRADED state.
 	 */
 	if (!fmd_nvl_fmri_unusable(hdl, asru) && fmd_nvl_fmri_has_fault(hdl,
 	    asru, FMD_HAS_FAULT_ASRU, NULL)) {
 		topo_hdl_t *thp;
 		char *fmri = NULL;
 		int err;
 		thp = fmd_hdl_topo_hold(hdl, TOPO_VERSION);
 		if (topo_fmri_nvl2str(thp, asru, &fmri, &err) == 0)
 			(void) fmd_repair_asru(hdl, fmri);
 		fmd_hdl_topo_rele(hdl, thp);
 		topo_hdl_strfree(thp, fmri);
 	}
 	nvlist_free(asru);
 #endif
 	zrp = fmd_hdl_alloc(hdl, sizeof (zfs_retire_repaired_t), FMD_SLEEP);
 	zrp->zrr_next = zdp->zrd_repaired;
 	zrp->zrr_pool = pool_guid;
@@ -319,19 +391,11 @@ zfs_retire_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl,
 	fmd_hdl_debug(hdl, "zfs_retire_recv: '%s'", class);
 	nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE, &state);
 	/*
-	 * If this is a resource notifying us of device removal then simply
+	 * If this is a resource notifying us of device removal, then simply
-	 * check for an available spare and continue unless the device is a
+	 * check for an available spare and continue.
 	 * l2arc vdev, in which case we just offline it.
 	 */
-	if (strcmp(class, "resource.fs.zfs.removed") == 0 ||
+	if (strcmp(class, "resource.fs.zfs.removed") == 0) {
 	    (strcmp(class, "resource.fs.zfs.statechange") == 0 &&
 	    state == VDEV_STATE_REMOVED)) {
 		char *devtype;
 		char *devname;
 		if (nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_POOL_GUID,
 		    &pool_guid) != 0 ||
 		    nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID,
@@ -342,20 +406,8 @@ zfs_retire_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl,
 		    &vdev)) == NULL)
 			return;
-		devname = zpool_vdev_name(NULL, zhp, vdev, B_FALSE);
+		if (fmd_prop_get_int32(hdl, "spare_on_remove"))
-
+			replace_with_spare(hdl, zhp, vdev);
 		/* Can't replace l2arc with a spare: offline the device */
 		if (nvlist_lookup_string(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE,
 		    &devtype) == 0 && strcmp(devtype, VDEV_TYPE_L2CACHE) == 0) {
 			fmd_hdl_debug(hdl, "zpool_vdev_offline '%s'", devname);
 			zpool_vdev_offline(zhp, devname, B_TRUE);
 		} else if (!fmd_prop_get_int32(hdl, "spare_on_remove") ||
 		    replace_with_spare(hdl, zhp, vdev) == B_FALSE) {
 			/* Could not handle with spare */
 			fmd_hdl_debug(hdl, "no spare for '%s'", devname);
 		}
 		free(devname);
 		zpool_close(zhp);
 		return;
 	}
@@ -364,11 +416,12 @@ zfs_retire_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl,
 		return;
 	/*
-	 * Note: on Linux statechange events are more than just
+	 * Note: on zfsonlinux statechange events are more than just
 	 * healthy ones so we need to confirm the actual state value.
 	 */
 	if (strcmp(class, "resource.fs.zfs.statechange") == 0 &&
-	    state == VDEV_STATE_HEALTHY) {
+	    nvlist_lookup_uint64(nvl, FM_EREPORT_PAYLOAD_ZFS_VDEV_STATE,
 	    &state) == 0 && state == VDEV_STATE_HEALTHY) {
 		zfs_vdev_repair(hdl, nvl);
 		return;
 	}
@@ -424,7 +477,39 @@ zfs_retire_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl,
 		}
 		if (is_disk) {
 #ifdef HAVE_LIBTOPO
 			/*
 			 * This is a disk fault.  Lookup the FRU, convert it to
 			 * an FMRI string, and attempt to find a matching vdev.
 			 */
 			if (nvlist_lookup_nvlist(fault, FM_FAULT_FRU,
 			    &fru) != 0 ||
 			    nvlist_lookup_string(fru, FM_FMRI_SCHEME,
 			    &scheme) != 0)
 				continue;
 			if (strcmp(scheme, FM_FMRI_SCHEME_HC) != 0)
 				continue;
 			thp = fmd_hdl_topo_hold(hdl, TOPO_VERSION);
 			if (topo_fmri_nvl2str(thp, fru, &fmri, &err) != 0) {
 				fmd_hdl_topo_rele(hdl, thp);
 				continue;
 			}
 			zhp = find_by_fru(zhdl, fmri, &vdev);
 			topo_hdl_strfree(thp, fmri);
 			fmd_hdl_topo_rele(hdl, thp);
 			if (zhp == NULL)
 				continue;
 			(void) nvlist_lookup_uint64(vdev,
 			    ZPOOL_CONFIG_GUID, &vdev_guid);
 			aux = VDEV_AUX_EXTERNAL;
 #else
 			continue;
 #endif
 		} else {
 			/*
 			 * This is a ZFS fault.  Lookup the resource, and
@@ -498,7 +583,7 @@ zfs_retire_recv(fmd_hdl_t *hdl, fmd_event_t *ep, nvlist_t *nvl,
 		/*
 		 * Attempt to substitute a hot spare.
 		 */
-		(void) replace_with_spare(hdl, zhp, vdev);
+		replace_with_spare(hdl, zhp, vdev);
 		zpool_close(zhp);
 	}
@@ -530,7 +615,7 @@ _zfs_retire_init(fmd_hdl_t *hdl)
 	zfs_retire_data_t *zdp;
 	libzfs_handle_t *zhdl;
-	if ((zhdl = libzfs_init()) == NULL)
+	if ((zhdl = __libzfs_init()) == NULL)
 		return;
 	if (fmd_hdl_register(hdl, FMD_API_VERSION, &fmd_info) != 0) {
@@ -551,7 +636,7 @@ _zfs_retire_fini(fmd_hdl_t *hdl)
 	if (zdp != NULL) {
 		zfs_retire_clear_data(hdl, zdp);
-		libzfs_fini(zdp->zrd_hdl);
+		__libzfs_fini(zdp->zrd_hdl);
 		fmd_hdl_free(hdl, zdp, sizeof (zfs_retire_data_t));
 	}
 }
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -263,43 +263,18 @@ main(int argc, char *argv[])
 	if (zed_conf_read_state(zcp, &saved_eid, saved_etime) < 0)
 		exit(EXIT_FAILURE);
-idle:
+	zed_event_init(zcp);
 	/*
 	 * If -I is specified, attempt to open /dev/zfs repeatedly until
 	 * successful.
 	 */
 	do {
 		if (!zed_event_init(zcp))
 			break;
 		/* Wait for some time and try again. tunable? */
 		sleep(30);
 	} while (!_got_exit && zcp->do_idle);
 	if (_got_exit)
 		goto out;
 	zed_event_seek(zcp, saved_eid, saved_etime);
 	while (!_got_exit) {
 		int rv;
 		if (_got_hup) {
 			_got_hup = 0;
 			(void) zed_conf_scan_dir(zcp);
 		}
-		rv = zed_event_service(zcp);
+		zed_event_service(zcp);
 		/* ENODEV: When kernel module is unloaded (osx) */
 		if (rv == ENODEV)
 			break;
 	}
 	zed_log_msg(LOG_NOTICE, "Exiting");
 	zed_event_fini(zcp);
 	if (zcp->do_idle && !_got_exit)
 		goto idle;
 out:
 	zed_conf_destroy(zcp);
 	zed_log_fini();
 	exit(EXIT_SUCCESS);
@@ -1 +0,0 @@
 history_event-zfs-list-cacher.sh
@@ -1,53 +0,0 @@
 include $(top_srcdir)/config/Rules.am
 include $(top_srcdir)/config/Substfiles.am
 EXTRA_DIST += README
 zedconfdir = $(sysconfdir)/zfs/zed.d
 dist_zedconf_DATA = \
 	zed-functions.sh \
 	zed.rc
 zedexecdir = $(zfsexecdir)/zed.d
 dist_zedexec_SCRIPTS = \
 	all-debug.sh \
 	all-syslog.sh \
 	data-notify.sh \
 	generic-notify.sh \
 	resilver_finish-notify.sh \
 	scrub_finish-notify.sh \
 	statechange-led.sh \
 	statechange-notify.sh \
 	vdev_clear-led.sh \
 	vdev_attach-led.sh \
 	pool_import-led.sh \
 	resilver_finish-start-scrub.sh \
 	trim_finish-notify.sh
 nodist_zedexec_SCRIPTS = history_event-zfs-list-cacher.sh
 SUBSTFILES += $(nodist_zedexec_SCRIPTS)
 zedconfdefaults = \
 	all-syslog.sh \
 	data-notify.sh \
 	history_event-zfs-list-cacher.sh \
 	resilver_finish-notify.sh \
 	scrub_finish-notify.sh \
 	statechange-led.sh \
 	statechange-notify.sh \
 	vdev_clear-led.sh \
 	vdev_attach-led.sh \
 	pool_import-led.sh \
 	resilver_finish-start-scrub.sh
 install-data-hook:
 	$(MKDIR_P) "$(DESTDIR)$(zedconfdir)"
 	for f in $(zedconfdefaults); do \
 	  test -f "$(DESTDIR)$(zedconfdir)/$${f}" -o \
 	       -L "$(DESTDIR)$(zedconfdir)/$${f}" || \
 	    ln -s "$(zedexecdir)/$${f}" "$(DESTDIR)$(zedconfdir)"; \
 	done
 	chmod 0600 "$(DESTDIR)$(zedconfdir)/zed.rc"
@@ -1,50 +1,14 @@
 #!/bin/sh
 #
 # Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 # Copyright (c) 2020 by Delphix. All rights reserved.
 #
 #
 # Log the zevent via syslog.
 #
 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
 . "${ZED_ZEDLET_DIR}/zed-functions.sh"
 zed_exit_if_ignoring_this_event
-# build a string of name=value pairs for this event
+zed_log_msg "eid=${ZEVENT_EID}" "class=${ZEVENT_SUBCLASS}" \
-msg="eid=${ZEVENT_EID} class=${ZEVENT_SUBCLASS}"
+    "${ZEVENT_POOL_GUID:+"pool_guid=${ZEVENT_POOL_GUID}"}" \
-
+    "${ZEVENT_VDEV_PATH:+"vdev_path=${ZEVENT_VDEV_PATH}"}" \
-if [ "${ZED_SYSLOG_DISPLAY_GUIDS}" = "1" ]; then
+    "${ZEVENT_VDEV_STATE_STR:+"vdev_state=${ZEVENT_VDEV_STATE_STR}"}"
    [ -n "${ZEVENT_POOL_GUID}" ] && msg="${msg} pool_guid=${ZEVENT_POOL_GUID}"
    [ -n "${ZEVENT_VDEV_GUID}" ] && msg="${msg} vdev_guid=${ZEVENT_VDEV_GUID}"
 else
    [ -n "${ZEVENT_POOL}" ] && msg="${msg} pool='${ZEVENT_POOL}'"
    [ -n "${ZEVENT_VDEV_PATH}" ] && msg="${msg} vdev=$(basename "${ZEVENT_VDEV_PATH}")"
 fi
 # log pool state if state is anything other than 'ACTIVE'
 [ -n "${ZEVENT_POOL_STATE_STR}" ] && [ "$ZEVENT_POOL_STATE" -ne 0 ] && \
    msg="${msg} pool_state=${ZEVENT_POOL_STATE_STR}"
 # Log the following payload nvpairs if they are present
 [ -n "${ZEVENT_VDEV_STATE_STR}" ]  && msg="${msg} vdev_state=${ZEVENT_VDEV_STATE_STR}"
 [ -n "${ZEVENT_CKSUM_ALGORITHM}" ] && msg="${msg} algorithm=${ZEVENT_CKSUM_ALGORITHM}"
 [ -n "${ZEVENT_ZIO_SIZE}" ]        && msg="${msg} size=${ZEVENT_ZIO_SIZE}"
 [ -n "${ZEVENT_ZIO_OFFSET}" ]      && msg="${msg} offset=${ZEVENT_ZIO_OFFSET}"
 [ -n "${ZEVENT_ZIO_PRIORITY}" ]    && msg="${msg} priority=${ZEVENT_ZIO_PRIORITY}"
 [ -n "${ZEVENT_ZIO_ERR}" ]         && msg="${msg} err=${ZEVENT_ZIO_ERR}"
 [ -n "${ZEVENT_ZIO_FLAGS}" ]       && msg="${msg} flags=$(printf '0x%x' "${ZEVENT_ZIO_FLAGS}")"
 # log delays that are >= 10 milisec
 [ -n "${ZEVENT_ZIO_DELAY}" ] && [ "$ZEVENT_ZIO_DELAY" -gt 10000000 ] && \
    msg="${msg} delay=$((ZEVENT_ZIO_DELAY / 1000000))ms"
 # list the bookmark data together
 [ -n "${ZEVENT_ZIO_OBJSET}" ] && \
    msg="${msg} bookmark=${ZEVENT_ZIO_OBJSET}:${ZEVENT_ZIO_OBJECT}:${ZEVENT_ZIO_LEVEL}:${ZEVENT_ZIO_BLKID}"
 zed_log_msg "${msg}"
 exit 0
@@ -1,85 +0,0 @@
 #!/bin/sh
 #
 # Track changes to enumerated pools for use in early-boot
 set -ef
 FSLIST_DIR="@sysconfdir@/zfs/zfs-list.cache"
 FSLIST_TMP="@runstatedir@/zfs-list.cache.new"
 FSLIST="${FSLIST_DIR}/${ZEVENT_POOL}"
 # If the pool specific cache file is not writeable, abort
 [ -w "${FSLIST}" ] || exit 0
 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
 . "${ZED_ZEDLET_DIR}/zed-functions.sh"
 [ "$ZEVENT_SUBCLASS" != "history_event" ] && exit 0
 zed_check_cmd "${ZFS}" sort diff grep
 # If we are acting on a snapshot, we have nothing to do
 printf '%s' "${ZEVENT_HISTORY_DSNAME}" | grep '@' && exit 0
 # We obtain a lock on zfs-list to avoid any simultaneous writes.
 # If we run into trouble, log and drop the lock
 abort_alter() {
  zed_log_msg "Error updating zfs-list.cache!"
  zed_unlock zfs-list
 }
 finished() {
  zed_unlock zfs-list
  trap - EXIT
  exit 0
 }
 case "${ZEVENT_HISTORY_INTERNAL_NAME}" in
    create|"finish receiving"|import|destroy|rename)
      ;;
    export)
        zed_lock zfs-list
        trap abort_alter EXIT
        echo > "${FSLIST}"
        finished
      ;;
    set|inherit)
        # Only act if one of the tracked properties is altered.
        case "${ZEVENT_HISTORY_INTERNAL_STR%%=*}" in
            canmount|mountpoint|atime|relatime|devices|exec|readonly| \
              setuid|nbmand|encroot|keylocation|org.openzfs.systemd:requires| \
              org.openzfs.systemd:requires-mounts-for| \
              org.openzfs.systemd:before|org.openzfs.systemd:after| \
              org.openzfs.systemd:wanted-by|org.openzfs.systemd:required-by| \
              org.openzfs.systemd:nofail|org.openzfs.systemd:ignore \
            ) ;;
            *) exit 0 ;;
        esac
      ;;
    *)
        # Ignore all other events.
        exit 0
      ;;
 esac
 zed_lock zfs-list
 trap abort_alter EXIT
 PROPS="name,mountpoint,canmount,atime,relatime,devices,exec\
 ,readonly,setuid,nbmand,encroot,keylocation\
 ,org.openzfs.systemd:requires,org.openzfs.systemd:requires-mounts-for\
 ,org.openzfs.systemd:before,org.openzfs.systemd:after\
 ,org.openzfs.systemd:wanted-by,org.openzfs.systemd:required-by\
 ,org.openzfs.systemd:nofail,org.openzfs.systemd:ignore"
 "${ZFS}" list -H -t filesystem -o $PROPS -r "${ZEVENT_POOL}" > "${FSLIST_TMP}"
 # Sort the output so that it is stable
 sort "${FSLIST_TMP}" -o "${FSLIST_TMP}"
 # Don't modify the file if it hasn't changed
 diff -q "${FSLIST_TMP}" "${FSLIST}" || mv "${FSLIST_TMP}" "${FSLIST}"
 rm -f "${FSLIST_TMP}"
 finished
@@ -5,12 +5,10 @@
 # Exit codes:
 # 1: Internal error
 # 2: Script wasn't enabled in zed.rc
 # 3: Scrubs are automatically started for sequential resilvers
 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
 . "${ZED_ZEDLET_DIR}/zed-functions.sh"
 [ "${ZED_SCRUB_AFTER_RESILVER}" = "1" ] || exit 2
 [ "${ZEVENT_RESILVER_TYPE}" != "sequential" ] || exit 3
 [ -n "${ZEVENT_POOL}" ] || exit 1
 [ -n "${ZEVENT_SUBCLASS}" ] || exit 1
 zed_check_cmd "${ZPOOL}" || exit 1
@@ -20,7 +20,7 @@
 #
 # Exit codes:
 #   0: enclosure led successfully set
-#   1: enclosure leds not available
+#   1: enclosure leds not not available
 #   2: enclosure leds administratively disabled
 #   3: The led sysfs path passed from ZFS does not exist
 #   4: $ZPOOL not set
@@ -68,7 +68,7 @@ check_and_set_led()
 	# timeout.
 	for _ in $(seq 1 5); do
 		# We want to check the current state first, since writing to the
-		# 'fault' entry always causes a SES command, even if the
+		# 'fault' entry always always causes a SES command, even if the
 		# current state is already what you want.
 		current=$(cat "${file}")
@@ -165,7 +165,7 @@ process_pool()
 	fi
 }
-if [ -n "$ZEVENT_VDEV_ENC_SYSFS_PATH" ] && [ -n "$ZEVENT_VDEV_STATE_STR" ] ; then
+if [ ! -z "$ZEVENT_VDEV_ENC_SYSFS_PATH" ] && [ ! -z "$ZEVENT_VDEV_STATE_STR" ] ; then
 	# Got a statechange for an individual VDEV
 	val=$(state_to_val "$ZEVENT_VDEV_STATE_STR")
 	vdev=$(basename "$ZEVENT_VDEV_PATH")
@@ -1,37 +0,0 @@
 #!/bin/sh
 #
 # Send notification in response to a TRIM_FINISH. The event
 # will be received for each vdev in the pool which was trimmed.
 #
 # Exit codes:
 #   0: notification sent
 #   1: notification failed
 #   2: notification not configured
 #   9: internal error
 [ -f "${ZED_ZEDLET_DIR}/zed.rc" ] && . "${ZED_ZEDLET_DIR}/zed.rc"
 . "${ZED_ZEDLET_DIR}/zed-functions.sh"
 [ -n "${ZEVENT_POOL}" ] || exit 9
 [ -n "${ZEVENT_SUBCLASS}" ] || exit 9
 zed_check_cmd "${ZPOOL}" || exit 9
 umask 077
 note_subject="ZFS ${ZEVENT_SUBCLASS} event for ${ZEVENT_POOL} on $(hostname)"
 note_pathname="${TMPDIR:="/tmp"}/$(basename -- "$0").${ZEVENT_EID}.$$"
 {
    echo "ZFS has finished a trim:"
    echo
    echo "   eid: ${ZEVENT_EID}"
    echo " class: ${ZEVENT_SUBCLASS}"
    echo "  host: $(hostname)"
    echo "  time: ${ZEVENT_TIME_STRING}"
    "${ZPOOL}" status -t "${ZEVENT_POOL}"
 } > "${note_pathname}"
 zed_notify "${note_subject}" "${note_pathname}"; rv=$?
 rm -f "${note_pathname}"
 exit "${rv}"
@@ -202,10 +202,6 @@ zed_notify()
    [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
    [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
    zed_notify_slack_webhook "${subject}" "${pathname}"; rv=$?
    [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
    [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
    [ "${num_success}" -gt 0 ] && return 0
    [ "${num_failure}" -gt 0 ] && return 1
    return 2
@@ -363,80 +359,6 @@ zed_notify_pushbullet()
 }
 # zed_notify_slack_webhook (subject, pathname)
 #
 # Notification via Slack Webhook <https://api.slack.com/incoming-webhooks>.
 # The Webhook URL (ZED_SLACK_WEBHOOK_URL) identifies this client to the
 # Slack channel. 
 #
 # Requires awk, curl, and sed executables to be installed in the standard PATH.
 #
 # References
 #   https://api.slack.com/incoming-webhooks
 #
 # Arguments
 #   subject: notification subject
 #   pathname: pathname containing the notification message (OPTIONAL)
 #
 # Globals
 #   ZED_SLACK_WEBHOOK_URL
 #
 # Return
 #   0: notification sent
 #   1: notification failed
 #   2: not configured
 #
 zed_notify_slack_webhook()
 {
    [ -n "${ZED_SLACK_WEBHOOK_URL}" ] || return 2
    local subject="$1"
    local pathname="${2:-"/dev/null"}"
    local msg_body
    local msg_tag
    local msg_json
    local msg_out
    local msg_err
    local url="${ZED_SLACK_WEBHOOK_URL}"
    [ -n "${subject}" ] || return 1
    if [ ! -r "${pathname}" ]; then
        zed_log_err "slack webhook cannot read \"${pathname}\""
        return 1
    fi
    zed_check_cmd "awk" "curl" "sed" || return 1
    # Escape the following characters in the message body for JSON:
    # newline, backslash, double quote, horizontal tab, vertical tab,
    # and carriage return.
    #
    msg_body="$(awk '{ ORS="\\n" } { gsub(/\\/, "\\\\"); gsub(/"/, "\\\"");
        gsub(/\t/, "\\t"); gsub(/\f/, "\\f"); gsub(/\r/, "\\r"); print }' \
        "${pathname}")"
    # Construct the JSON message for posting.
    #
    msg_json="$(printf '{"text": "*%s*\n%s"}' "${subject}" "${msg_body}" )"
    # Send the POST request and check for errors.
    #
    msg_out="$(curl -X POST "${url}" \
        --header "Content-Type: application/json" --data-binary "${msg_json}" \
        2>/dev/null)"; rv=$?
    if [ "${rv}" -ne 0 ]; then
        zed_log_err "curl exit=${rv}"
        return 1
    fi
    msg_err="$(echo "${msg_out}" \
        | sed -n -e 's/.*"error" *:.*"message" *: *"\([^"]*\)".*/\1/p')"
    if [ -n "${msg_err}" ]; then
        zed_log_err "slack webhook \"${msg_err}"\"
        return 1
    fi
    return 0
 }
 # zed_rate_limit (tag, [interval])
 #
 # Check whether an event of a given type [tag] has already occurred within the
@@ -512,7 +434,7 @@ zed_guid_to_pool()
 	fi
 	guid=$(printf "%llu" "$1")
-	if [ -n "$guid" ] ; then
+	if [ ! -z "$guid" ] ; then
 		$ZPOOL get -H -ovalue,name guid | awk '$1=='"$guid"' {print $2}'
 	fi
 }
@@ -52,9 +52,9 @@
 ##
 # Send notifications for 'ereport.fs.zfs.data' events.
-# Disabled by default, any non-empty value will enable the feature.
+# Disabled by default
 #
-#ZED_NOTIFY_DATA=
+#ZED_NOTIFY_DATA=1
 ##
 # Pushbullet access token.
@@ -74,14 +74,6 @@
 #
 #ZED_PUSHBULLET_CHANNEL_TAG=""
 ##
 # Slack Webhook URL.
 # This allows posting to the given channel and includes an access token.
 #   <https://api.slack.com/incoming-webhooks>
 # Disabled by default; uncomment to enable.
 #
 #ZED_SLACK_WEBHOOK_URL=""
 ##
 # Default directory for zed state files.
 #
@@ -96,8 +88,7 @@ ZED_USE_ENCLOSURE_LEDS=1
 ##
 # Run a scrub after every resilver
-# Disabled by default, 1 to enable and 0 to disable.
+#ZED_SCRUB_AFTER_RESILVER=1
 #ZED_SCRUB_AFTER_RESILVER=0
 ##
 # The syslog priority (e.g., specified as a "facility.level" pair).
@@ -118,10 +109,5 @@ ZED_USE_ENCLOSURE_LEDS=1
 # Otherwise, if ZED_SYSLOG_SUBCLASS_EXCLUDE is set, the
 # matching subclasses are excluded from logging.
 #ZED_SYSLOG_SUBCLASS_INCLUDE="checksum|scrub_*|vdev.*"
-ZED_SYSLOG_SUBCLASS_EXCLUDE="history_event"
+#ZED_SYSLOG_SUBCLASS_EXCLUDE="statechange|config_*|history_event"
 ##
 # Use GUIDs instead of names when logging pool and vdevs
 # Disabled by default, 1 to enable and 0 to disable.
 #ZED_SYSLOG_DISPLAY_GUIDS=1
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -153,8 +153,6 @@ _zed_conf_display_help(const char *prog, int got_err)
 	    "Force daemon to run.");
 	fprintf(fp, "%*c%*s %s\n", w1, 0x20, -w2, "-F",
 	    "Run daemon in the foreground.");
 	fprintf(fp, "%*c%*s %s\n", w1, 0x20, -w2, "-I",
 	    "Idle daemon until kernel module is (re)loaded.");
 	fprintf(fp, "%*c%*s %s\n", w1, 0x20, -w2, "-M",
 	    "Lock all pages in memory.");
 	fprintf(fp, "%*c%*s %s\n", w1, 0x20, -w2, "-P",
@@ -251,7 +249,7 @@ _zed_conf_parse_path(char **resultp, const char *path)
 void
 zed_conf_parse_opts(struct zed_conf *zcp, int argc, char **argv)
 {
-	const char * const opts = ":hLVc:d:p:P:s:vfFMZI";
+	const char * const opts = ":hLVc:d:p:P:s:vfFMZ";
 	int opt;
 	if (!zcp || !argv || !argv[0])
@@ -276,9 +274,6 @@ zed_conf_parse_opts(struct zed_conf *zcp, int argc, char **argv)
 		case 'd':
 			_zed_conf_parse_path(&zcp->zedlet_dir, optarg);
 			break;
 		case 'I':
 			zcp->do_idle = 1;
 			break;
 		case 'p':
 			_zed_conf_parse_path(&zcp->pid_file, optarg);
 			break;
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -25,7 +25,6 @@ struct zed_conf {
 	unsigned	do_memlock:1;		/* true if locking memory */
 	unsigned	do_verbose:1;		/* true if verbosity enabled */
 	unsigned	do_zero:1;		/* true if zeroing state */
 	unsigned	do_idle:1;		/* true if idle enabled */
 	int		syslog_facility;	/* syslog facility value */
 	int		min_events;		/* RESERVED FOR FUTURE USE */
 	int		max_events;		/* RESERVED FOR FUTURE USE */
@@ -21,7 +21,6 @@
 #include <libnvpair.h>
 #include <libudev.h>
 #include <libzfs.h>
 #include <libzutil.h>
 #include <pthread.h>
 #include <stdlib.h>
 #include <string.h>
@@ -38,7 +37,7 @@
 * A libudev monitor is established to monitor block device actions and pass
 * them on to internal ZED logic modules.  Initially, zfs_mod.c is the only
 * consumer and is the Linux equivalent for the illumos syseventd ZFS SLM
- * module responsible for handling disk events for ZFS.
+ * module responsible for handeling disk events for ZFS.
 */
 pthread_t g_mon_tid;
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -28,7 +28,6 @@
 #include "zed.h"
 #include "zed_conf.h"
 #include "zed_disk_event.h"
 #include "zed_event.h"
 #include "zed_exec.h"
 #include "zed_file.h"
 #include "zed_log.h"
@@ -41,36 +40,25 @@
 /*
 * Open the libzfs interface.
 */
-int
+void
 zed_event_init(struct zed_conf *zcp)
 {
 	if (!zcp)
 		zed_log_die("Failed zed_event_init: %s", strerror(EINVAL));
 	zcp->zfs_hdl = libzfs_init();
-	if (!zcp->zfs_hdl) {
+	if (!zcp->zfs_hdl)
 		if (zcp->do_idle)
 			return (-1);
 		zed_log_die("Failed to initialize libzfs");
 	}
 	zcp->zevent_fd = open(ZFS_DEV, O_RDWR);
-	if (zcp->zevent_fd < 0) {
+	if (zcp->zevent_fd < 0)
 		if (zcp->do_idle)
 			return (-1);
 		zed_log_die("Failed to open \"%s\": %s",
 		    ZFS_DEV, strerror(errno));
 	}
 	zfs_agent_init(zcp->zfs_hdl);
-	if (zed_disk_event_init() != 0) {
+	if (zed_disk_event_init() != 0)
 		if (zcp->do_idle)
 			return (-1);
 		zed_log_die("Failed to initialize disk events");
 	}
 	return (0);
 }
 /*
@@ -884,7 +872,7 @@ _zed_event_add_time_strings(uint64_t eid, zed_strings_t *zsp, int64_t etime[])
 /*
 * Service the next zevent, blocking until one is available.
 */
-int
+void
 zed_event_service(struct zed_conf *zcp)
 {
 	nvlist_t *nvl;
@@ -902,13 +890,13 @@ zed_event_service(struct zed_conf *zcp)
 		errno = EINVAL;
 		zed_log_msg(LOG_ERR, "Failed to service zevent: %s",
 		    strerror(errno));
-		return (EINVAL);
+		return;
 	}
 	rv = zpool_events_next(zcp->zfs_hdl, &nvl, &n_dropped, ZEVENT_NONE,
 	    zcp->zevent_fd);
 	if ((rv != 0) || !nvl)
-		return (errno);
+		return;
 	if (n_dropped > 0) {
 		zed_log_msg(LOG_WARNING, "Missed %d events", n_dropped);
@@ -961,5 +949,4 @@ zed_event_service(struct zed_conf *zcp)
 		zed_strings_destroy(zsp);
 	}
 	nvlist_free(nvl);
 	return (0);
 }
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -17,13 +17,13 @@
 #include <stdint.h>
-int zed_event_init(struct zed_conf *zcp);
+void zed_event_init(struct zed_conf *zcp);
 void zed_event_fini(struct zed_conf *zcp);
 int zed_event_seek(struct zed_conf *zcp, uint64_t saved_eid,
    int64_t saved_etime[]);
-int zed_event_service(struct zed_conf *zcp);
+void zed_event_service(struct zed_conf *zcp);
 #endif	/* !ZED_EVENT_H */
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -22,7 +22,6 @@
 #include <sys/wait.h>
 #include <time.h>
 #include <unistd.h>
 #include "zed_exec.h"
 #include "zed_file.h"
 #include "zed_log.h"
 #include "zed_strings.h"
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -16,7 +16,6 @@
 #define	ZED_EXEC_H
 #include <stdint.h>
 #include "zed_strings.h"
 int zed_exec_process(uint64_t eid, const char *class, const char *subclass,
    const char *dir, zed_strings_t *zedlets, zed_strings_t *envs,
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -20,7 +20,6 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include "zed_file.h"
 #include "zed_log.h"
 /*
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -108,7 +108,7 @@ _zed_strings_node_destroy(zed_strings_node_t *np)
 * If [key] is specified, it will be used to index the node; otherwise,
 * the string [val] will be used.
 */
-static zed_strings_node_t *
+zed_strings_node_t *
 _zed_strings_node_create(const char *key, const char *val)
 {
 	zed_strings_node_t *np;
@@ -1,6 +1,6 @@
 /*
- * This file is part of the ZFS Event Daemon (ZED).
+ * This file is part of the ZFS Event Daemon (ZED)
- *
+ * for ZFS on Linux (ZoL) <http://zfsonlinux.org/>.
 * Developed at Lawrence Livermore National Laboratory (LLNL-CODE-403049).
 * Copyright (C) 2013-2014 Lawrence Livermore National Security, LLC.
 * Refer to the ZoL git commit log for authoritative copyright attribution.
@@ -1,23 +1,22 @@
 include $(top_srcdir)/config/Rules.am
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 sbin_PROGRAMS = zfs
 zfs_SOURCES = \
 	zfs_iter.c \
 	zfs_iter.h \
 	zfs_main.c \
-	zfs_util.h \
+	zfs_util.h
 	zfs_project.c \
 	zfs_projectutil.h
 zfs_LDADD = \
-	$(abs_top_builddir)/lib/libzfs/libzfs.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libuutil/libuutil.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la \
+	$(top_builddir)/lib/libzpool/libzpool.la \
-	$(abs_top_builddir)/lib/libuutil/libuutil.la
+	$(top_builddir)/lib/libzfs/libzfs.la \
 	$(top_builddir)/lib/libzfs_core/libzfs_core.la
-zfs_LDADD += $(LTLIBINTL)
+zfs_LDFLAGS = -pthread
 if BUILD_FREEBSD
 zfs_LDADD += -lgeom -ljail
 endif
@@ -31,7 +31,6 @@
 #include <stddef.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <strings.h>
 #include <libzfs.h>
@@ -134,31 +133,16 @@ zfs_callback(zfs_handle_t *zhp, void *data)
 	    ((cb->cb_flags & ZFS_ITER_DEPTH_LIMIT) == 0 ||
 	    cb->cb_depth < cb->cb_depth_limit)) {
 		cb->cb_depth++;
-
+		if (zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM)
 		/*
 		 * If we are not looking for filesystems, we don't need to
 		 * recurse into filesystems when we are at our depth limit.
 		 */
 		if ((cb->cb_depth < cb->cb_depth_limit ||
 		    (cb->cb_flags & ZFS_ITER_DEPTH_LIMIT) == 0 ||
 		    (cb->cb_types &
 		    (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME))) &&
 		    zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) {
 			(void) zfs_iter_filesystems(zhp, zfs_callback, data);
 		}
 		if (((zfs_get_type(zhp) & (ZFS_TYPE_SNAPSHOT |
-		    ZFS_TYPE_BOOKMARK)) == 0) && include_snaps) {
+		    ZFS_TYPE_BOOKMARK)) == 0) && include_snaps)
 			(void) zfs_iter_snapshots(zhp,
-			    (cb->cb_flags & ZFS_ITER_SIMPLE) != 0,
+			    (cb->cb_flags & ZFS_ITER_SIMPLE) != 0, zfs_callback,
-			    zfs_callback, data, 0, 0);
+			    data);
 		}
 		if (((zfs_get_type(zhp) & (ZFS_TYPE_SNAPSHOT |
-		    ZFS_TYPE_BOOKMARK)) == 0) && include_bmarks) {
+		    ZFS_TYPE_BOOKMARK)) == 0) && include_bmarks)
 			(void) zfs_iter_bookmarks(zhp, zfs_callback, data);
 		}
 		cb->cb_depth--;
 	}
@@ -240,7 +224,7 @@ zfs_compare(const void *larg, const void *rarg, void *unused)
 		*rat = '\0';
 	ret = strcmp(lname, rname);
-	if (ret == 0 && (lat != NULL || rat != NULL)) {
+	if (ret == 0) {
 		/*
 		 * If we're comparing a dataset to one of its snapshots, we
 		 * always make the full dataset first.
@@ -1,295 +0,0 @@
 /*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
 /*
 * Copyright (c) 2017, Intle Corporation. All rights reserved.
 */
 #include <errno.h>
 #include <getopt.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <strings.h>
 #include <unistd.h>
 #include <fcntl.h>
 #include <dirent.h>
 #include <stddef.h>
 #include <libintl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/list.h>
 #include <sys/zfs_project.h>
 #include "zfs_util.h"
 #include "zfs_projectutil.h"
 typedef struct zfs_project_item {
 	list_node_t	zpi_list;
 	char		zpi_name[0];
 } zfs_project_item_t;
 static void
 zfs_project_item_alloc(list_t *head, const char *name)
 {
 	zfs_project_item_t *zpi;
 	zpi = safe_malloc(sizeof (zfs_project_item_t) + strlen(name) + 1);
 	strcpy(zpi->zpi_name, name);
 	list_insert_tail(head, zpi);
 }
 static int
 zfs_project_sanity_check(const char *name, zfs_project_control_t *zpc,
    struct stat *st)
 {
 	int ret;
 	ret = stat(name, st);
 	if (ret) {
 		(void) fprintf(stderr, gettext("failed to stat %s: %s\n"),
 		    name, strerror(errno));
 		return (ret);
 	}
 	if (!S_ISREG(st->st_mode) && !S_ISDIR(st->st_mode)) {
 		(void) fprintf(stderr, gettext("only support project quota on "
 		    "regular file or directory\n"));
 		return (-1);
 	}
 	if (!S_ISDIR(st->st_mode)) {
 		if (zpc->zpc_dironly) {
 			(void) fprintf(stderr, gettext(
 			    "'-d' option on non-dir target %s\n"), name);
 			return (-1);
 		}
 		if (zpc->zpc_recursive) {
 			(void) fprintf(stderr, gettext(
 			    "'-r' option on non-dir target %s\n"), name);
 			return (-1);
 		}
 	}
 	return (0);
 }
 static int
 zfs_project_load_projid(const char *name, zfs_project_control_t *zpc)
 {
 	zfsxattr_t fsx;
 	int ret, fd;
 	fd = open(name, O_RDONLY | O_NOCTTY);
 	if (fd < 0) {
 		(void) fprintf(stderr, gettext("failed to open %s: %s\n"),
 		    name, strerror(errno));
 		return (fd);
 	}
 	ret = ioctl(fd, ZFS_IOC_FSGETXATTR, &fsx);
 	if (ret)
 		(void) fprintf(stderr,
 		    gettext("failed to get xattr for %s: %s\n"),
 		    name, strerror(errno));
 	else
 		zpc->zpc_expected_projid = fsx.fsx_projid;
 	close(fd);
 	return (ret);
 }
 static int
 zfs_project_handle_one(const char *name, zfs_project_control_t *zpc)
 {
 	zfsxattr_t fsx;
 	int ret, fd;
 	fd = open(name, O_RDONLY | O_NOCTTY);
 	if (fd < 0) {
 		if (errno == ENOENT && zpc->zpc_ignore_noent)
 			return (0);
 		(void) fprintf(stderr, gettext("failed to open %s: %s\n"),
 		    name, strerror(errno));
 		return (fd);
 	}
 	ret = ioctl(fd, ZFS_IOC_FSGETXATTR, &fsx);
 	if (ret) {
 		(void) fprintf(stderr,
 		    gettext("failed to get xattr for %s: %s\n"),
 		    name, strerror(errno));
 		goto out;
 	}
 	switch (zpc->zpc_op) {
 	case ZFS_PROJECT_OP_LIST:
 		(void) printf("%5u %c %s\n", fsx.fsx_projid,
 		    (fsx.fsx_xflags & ZFS_PROJINHERIT_FL) ? 'P' : '-', name);
 		goto out;
 	case ZFS_PROJECT_OP_CHECK:
 		if (fsx.fsx_projid == zpc->zpc_expected_projid &&
 		    fsx.fsx_xflags & ZFS_PROJINHERIT_FL)
 			goto out;
 		if (!zpc->zpc_newline) {
 			char c = '\0';
 			(void) printf("%s%c", name, c);
 			goto out;
 		}
 		if (fsx.fsx_projid != zpc->zpc_expected_projid)
 			(void) printf("%s - project ID is not set properly "
 			    "(%u/%u)\n", name, fsx.fsx_projid,
 			    (uint32_t)zpc->zpc_expected_projid);
 		if (!(fsx.fsx_xflags & ZFS_PROJINHERIT_FL))
 			(void) printf("%s - project inherit flag is not set\n",
 			    name);
 		goto out;
 	case ZFS_PROJECT_OP_CLEAR:
 		if (!(fsx.fsx_xflags & ZFS_PROJINHERIT_FL) &&
 		    (zpc->zpc_keep_projid ||
 		    fsx.fsx_projid == ZFS_DEFAULT_PROJID))
 			goto out;
 		fsx.fsx_xflags &= ~ZFS_PROJINHERIT_FL;
 		if (!zpc->zpc_keep_projid)
 			fsx.fsx_projid = ZFS_DEFAULT_PROJID;
 		break;
 	case ZFS_PROJECT_OP_SET:
 		if (fsx.fsx_projid == zpc->zpc_expected_projid &&
 		    (!zpc->zpc_set_flag || fsx.fsx_xflags & ZFS_PROJINHERIT_FL))
 			goto out;
 		fsx.fsx_projid = zpc->zpc_expected_projid;
 		if (zpc->zpc_set_flag)
 			fsx.fsx_xflags |= ZFS_PROJINHERIT_FL;
 		break;
 	default:
 		ASSERT(0);
 		break;
 	}
 	ret = ioctl(fd, ZFS_IOC_FSSETXATTR, &fsx);
 	if (ret)
 		(void) fprintf(stderr,
 		    gettext("failed to set xattr for %s: %s\n"),
 		    name, strerror(errno));
 out:
 	close(fd);
 	return (ret);
 }
 static int
 zfs_project_handle_dir(const char *name, zfs_project_control_t *zpc,
    list_t *head)
 {
 	char fullname[PATH_MAX];
 	struct dirent *ent;
 	DIR *dir;
 	int ret = 0;
 	dir = opendir(name);
 	if (dir == NULL) {
 		if (errno == ENOENT && zpc->zpc_ignore_noent)
 			return (0);
 		ret = -errno;
 		(void) fprintf(stderr, gettext("failed to opendir %s: %s\n"),
 		    name, strerror(errno));
 		return (ret);
 	}
 	/* Non-top item, ignore the case of being removed or renamed by race. */
 	zpc->zpc_ignore_noent = B_TRUE;
 	errno = 0;
 	while (!ret && (ent = readdir(dir)) != NULL) {
 		/* skip "." and ".." */
 		if (strcmp(ent->d_name, ".") == 0 ||
 		    strcmp(ent->d_name, "..") == 0)
 			continue;
 		if (strlen(ent->d_name) + strlen(name) >=
 		    sizeof (fullname) + 1) {
 			errno = ENAMETOOLONG;
 			break;
 		}
 		sprintf(fullname, "%s/%s", name, ent->d_name);
 		ret = zfs_project_handle_one(fullname, zpc);
 		if (!ret && zpc->zpc_recursive && ent->d_type == DT_DIR)
 			zfs_project_item_alloc(head, fullname);
 	}
 	if (errno && !ret) {
 		ret = -errno;
 		(void) fprintf(stderr, gettext("failed to readdir %s: %s\n"),
 		    name, strerror(errno));
 	}
 	closedir(dir);
 	return (ret);
 }
 int
 zfs_project_handle(const char *name, zfs_project_control_t *zpc)
 {
 	zfs_project_item_t *zpi;
 	struct stat st;
 	list_t head;
 	int ret;
 	ret = zfs_project_sanity_check(name, zpc, &st);
 	if (ret)
 		return (ret);
 	if ((zpc->zpc_op == ZFS_PROJECT_OP_SET ||
 	    zpc->zpc_op == ZFS_PROJECT_OP_CHECK) &&
 	    zpc->zpc_expected_projid == ZFS_INVALID_PROJID) {
 		ret = zfs_project_load_projid(name, zpc);
 		if (ret)
 			return (ret);
 	}
 	zpc->zpc_ignore_noent = B_FALSE;
 	ret = zfs_project_handle_one(name, zpc);
 	if (ret || !S_ISDIR(st.st_mode) || zpc->zpc_dironly ||
 	    (!zpc->zpc_recursive &&
 	    zpc->zpc_op != ZFS_PROJECT_OP_LIST &&
 	    zpc->zpc_op != ZFS_PROJECT_OP_CHECK))
 		return (ret);
 	list_create(&head, sizeof (zfs_project_item_t),
 	    offsetof(zfs_project_item_t, zpi_list));
 	zfs_project_item_alloc(&head, name);
 	while ((zpi = list_remove_head(&head)) != NULL) {
 		if (!ret)
 			ret = zfs_project_handle_dir(zpi->zpi_name, zpc, &head);
 		free(zpi);
 	}
 	return (ret);
 }
@@ -1,49 +0,0 @@
 /*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
 /*
 * Copyright (c) 2017, Intel Corporation. All rights reserved.
 */
 #ifndef	_ZFS_PROJECTUTIL_H
 #define	_ZFS_PROJECTUTIL_H
 typedef enum {
 	ZFS_PROJECT_OP_DEFAULT	= 0,
 	ZFS_PROJECT_OP_LIST	= 1,
 	ZFS_PROJECT_OP_CHECK	= 2,
 	ZFS_PROJECT_OP_CLEAR	= 3,
 	ZFS_PROJECT_OP_SET	= 4,
 } zfs_project_ops_t;
 typedef struct zfs_project_control {
 	uint64_t		zpc_expected_projid;
 	zfs_project_ops_t	zpc_op;
 	boolean_t		zpc_dironly;
 	boolean_t		zpc_ignore_noent;
 	boolean_t		zpc_keep_projid;
 	boolean_t		zpc_newline;
 	boolean_t		zpc_recursive;
 	boolean_t		zpc_set_flag;
 } zfs_project_control_t;
 int zfs_project_handle(const char *name, zfs_project_control_t *zpc);
 #endif	/* _ZFS_PROJECTUTIL_H */
@@ -33,7 +33,7 @@ extern "C" {
 void * safe_malloc(size_t size);
 void nomem(void);
-extern libzfs_handle_t *g_zfs;
+libzfs_handle_t *g_zfs;
 #ifdef	__cplusplus
 }
@@ -1 +0,0 @@
 zfs_ids_to_path
@@ -1,9 +0,0 @@
 include $(top_srcdir)/config/Rules.am
 sbin_PROGRAMS = zfs_ids_to_path
 zfs_ids_to_path_SOURCES = \
 	zfs_ids_to_path.c
 zfs_ids_to_path_LDADD = \
        $(abs_top_builddir)/lib/libzfs/libzfs.la
@@ -1,96 +0,0 @@
 /*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
 /*
 * Copyright (c) 2019 by Delphix. All rights reserved.
 */
 #include <libintl.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include <stdint.h>
 #include <libzfs.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <errno.h>
 libzfs_handle_t *g_zfs;
 static void
 usage(int err)
 {
 	fprintf(stderr, "Usage: [-v] zfs_ids_to_path <pool> <objset id> "
 	    "<object id>\n");
 	exit(err);
 }
 int
 main(int argc, char **argv)
 {
 	boolean_t verbose = B_FALSE;
 	int c;
 	while ((c = getopt(argc, argv, "v")) != -1) {
 		switch (c) {
 		case 'v':
 			verbose = B_TRUE;
 			break;
 		}
 	}
 	argc -= optind;
 	argv += optind;
 	if (argc != 3) {
 		(void) fprintf(stderr, "Incorrect number of arguments: %d\n",
 		    argc);
 		usage(1);
 	}
 	uint64_t objset, object;
 	if (sscanf(argv[1], "%llu", (u_longlong_t *)&objset) != 1) {
 		(void) fprintf(stderr, "Invalid objset id: %s\n", argv[2]);
 		usage(2);
 	}
 	if (sscanf(argv[2], "%llu", (u_longlong_t *)&object) != 1) {
 		(void) fprintf(stderr, "Invalid object id: %s\n", argv[3]);
 		usage(3);
 	}
 	if ((g_zfs = libzfs_init()) == NULL) {
 		(void) fprintf(stderr, "%s\n", libzfs_error_init(errno));
 		return (4);
 	}
 	zpool_handle_t *pool = zpool_open(g_zfs, argv[0]);
 	if (pool == NULL) {
 		fprintf(stderr, "Could not open pool %s\n", argv[1]);
 		libzfs_fini(g_zfs);
 		return (5);
 	}
 	char pathname[PATH_MAX * 2];
 	if (verbose) {
 		zpool_obj_to_path_ds(pool, objset, object, pathname,
 		    sizeof (pathname));
 	} else {
 		zpool_obj_to_path(pool, objset, object, pathname,
 		    sizeof (pathname));
 	}
 	printf("%s\n", pathname);
 	zpool_close(pool);
 	libzfs_fini(g_zfs);
 	return (0);
 }
@@ -1 +0,0 @@
 /zgenhostid
@@ -1,5 +1 @@
-include $(top_srcdir)/config/Rules.am
+dist_bin_SCRIPTS = zgenhostid
 sbin_PROGRAMS = zgenhostid
 zgenhostid_SOURCES = zgenhostid.c
@@ -0,0 +1,61 @@
 #!/bin/bash
 # Emulate genhostid(1) available on RHEL/CENTOS, for use on distros
 # which do not provide that utility.
 #
 # Usage:
 #    zgenhostid
 #    zgenhostid <value>
 #
 # If /etc/hostid already exists and is size > 0, the script exits immediately
 # and changes nothing.  Unlike genhostid, this generates an error message.
 #
 # The first form generates a random hostid and stores it in /etc/hostid.
 # The second form checks that the provided value is between 0x1 and 0xFFFFFFFF
 # and if so, stores it in /etc/hostid.  This form is not supported by
 # genhostid(1).
 hostid_file=/etc/hostid
 function usage {
 	echo "$0 [value]"
 	echo "If $hostid_file is not present, store a hostid in it." >&2
 	echo "The optional value must be an 8-digit hex number between" >&2
 	echo "1 and 2^32-1.  If no value is provided, a random one will" >&2
 	echo "be generated.  The value must be unique among your systems." >&2
 }
 # hostid(1) ignores contents of /etc/hostid if size < 4 bytes.  It would
 # be better if this checked size >= 4 bytes but it the method must be
 # widely portable.
 if [ -s $hostid_file ]; then
 	echo "$hostid_file already exists.  No change made." >&2
 	exit 1
 fi
 if [ -n "$1" ]; then
 	host_id=$1
 else
 	# $RANDOM goes from 0..32k-1
 	number=$((((RANDOM % 4) * 32768 + RANDOM) * 32768 + RANDOM))
 	host_id=$(printf "%08x" $number)
 fi
 if egrep -o '^0{8}$' <<< $host_id >/dev/null 2>&1; then
 	usage
 	exit 2
 fi
 if ! egrep -o '^[a-fA-F0-9]{8}$' <<< $host_id >/dev/null 2>&1; then
 	usage
 	exit 3
 fi
 a=${host_id:6:2}
 b=${host_id:4:2}
 c=${host_id:2:2}
 d=${host_id:0:2}
 echo -ne \\x$a\\x$b\\x$c\\x$d > $hostid_file
 exit 0
@@ -1,152 +0,0 @@
 /*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
 /*
 * Copyright (c) 2020, Georgy Yakovlev.  All rights reserved.
 */
 #include <errno.h>
 #include <fcntl.h>
 #include <getopt.h>
 #include <inttypes.h>
 #include <limits.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
 #include <time.h>
 #include <unistd.h>
 static void usage(void);
 static void
 usage(void)
 {
 	(void) fprintf(stderr,
 	    "usage: zgenhostid [-fh] [-o path] [value]\n\n"
 	    "  -f\t\t force hostid file write\n"
 	    "  -h\t\t print this usage and exit\n"
 	    "  -o <filename>\t write hostid to this file\n\n"
 	    "If hostid file is not present, store a hostid in it.\n"
 	    "The optional value should be an 8-digit hex number between"
 	    " 1 and 2^32-1.\n"
 	    "If the value is 0 or no value is provided, a random one"
 	    " will be generated.\n"
 	    "The value must be unique among your systems.\n");
 	exit(EXIT_FAILURE);
 	/* NOTREACHED */
 }
 int
 main(int argc, char **argv)
 {
 	/* default file path, can be optionally set by user */
 	char path[PATH_MAX] = "/etc/hostid";
 	/* holds converted user input or lrand48() generated value */
 	unsigned long input_i = 0;
 	int opt;
 	int pathlen;
 	int force_fwrite = 0;
 	while ((opt = getopt_long(argc, argv, "fo:h?", 0, 0)) != -1) {
 		switch (opt) {
 		case 'f':
 			force_fwrite = 1;
 			break;
 		case 'o':
 			pathlen = snprintf(path, sizeof (path), "%s", optarg);
 			if (pathlen >= sizeof (path)) {
 				fprintf(stderr, "%s\n", strerror(EOVERFLOW));
 				exit(EXIT_FAILURE);
 			} else if (pathlen < 1) {
 				fprintf(stderr, "%s\n", strerror(EINVAL));
 				exit(EXIT_FAILURE);
 			}
 			break;
 		case 'h':
 		case '?':
 			usage();
 		}
 	}
 	char *in_s = argv[optind];
 	if (in_s != NULL) {
 		/* increment pointer by 2 if string is 0x prefixed */
 		if (strncasecmp("0x", in_s, 2) == 0) {
 			in_s += 2;
 		}
 		/* need to be exactly 8 characters */
 		const char *hex = "0123456789abcdefABCDEF";
 		if (strlen(in_s) != 8 || strspn(in_s, hex) != 8) {
 			fprintf(stderr, "%s\n", strerror(ERANGE));
 			usage();
 		}
 		input_i = strtoul(in_s, NULL, 16);
 		if (errno != 0) {
 			perror("strtoul");
 			exit(EXIT_FAILURE);
 		}
 		if (input_i > UINT32_MAX) {
 			fprintf(stderr, "%s\n", strerror(ERANGE));
 			usage();
 		}
 	}
 	struct stat fstat;
 	if (force_fwrite == 0 && stat(path, &fstat) == 0 &&
 	    S_ISREG(fstat.st_mode)) {
 		fprintf(stderr, "%s: %s\n", path, strerror(EEXIST));
 			exit(EXIT_FAILURE);
 	}
 	/*
 	 * generate if not provided by user
 	 * also handle unlikely zero return from lrand48()
 	 */
 	while (input_i == 0) {
 		srand48(getpid() ^ time(NULL));
 		input_i = lrand48();
 	}
 	FILE *fp = fopen(path, "wb");
 	if (!fp) {
 		perror("fopen");
 		exit(EXIT_FAILURE);
 	}
 	/*
 	 * we need just 4 bytes in native endianess
 	 * not using sethostid() because it may be missing or just a stub
 	 */
 	uint32_t hostid = input_i;
 	int written = fwrite(&hostid, 1, 4, fp);
 	if (written != 4) {
 		perror("fwrite");
 		exit(EXIT_FAILURE);
 	}
 	fclose(fp);
 	exit(EXIT_SUCCESS);
 }
@@ -1,7 +1,8 @@
 include $(top_srcdir)/config/Rules.am
-# Unconditionally enable debugging for zhack
+DEFAULT_INCLUDES += \
-AM_CPPFLAGS += -DDEBUG -UNDEBUG -DZFS_DEBUG
+	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 sbin_PROGRAMS = zhack
@@ -9,6 +10,8 @@ zhack_SOURCES = \
 	zhack.c
 zhack_LDADD = \
-	$(abs_top_builddir)/lib/libzpool/libzpool.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libuutil/libuutil.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la
+	$(top_builddir)/lib/libzpool/libzpool.la \
 	$(top_builddir)/lib/libzfs/libzfs.la \
 	$(top_builddir)/lib/libzfs_core/libzfs_core.la
@@ -48,11 +48,12 @@
 #include <sys/zio_compress.h>
 #include <sys/zfeature.h>
 #include <sys/dmu_tx.h>
-#include <libzutil.h>
+#include <libzfs.h>
 extern boolean_t zfeature_checks_disable;
 const char cmdname[] = "zhack";
 libzfs_handle_t *g_zfs;
 static importargs_t g_importargs;
 static char *g_pool;
 static boolean_t g_readonly;
@@ -103,8 +104,8 @@ fatal(spa_t *spa, void *tag, const char *fmt, ...)
 /* ARGSUSED */
 static int
-space_delta_cb(dmu_object_type_t bonustype, const void *data,
+space_delta_cb(dmu_object_type_t bonustype, void *data,
-    zfs_file_info_t *zoi)
+    uint64_t *userp, uint64_t *groupp)
 {
 	/*
 	 * Is it a valid type of object to track?
@@ -126,19 +127,21 @@ zhack_import(char *target, boolean_t readonly)
 	nvlist_t *props;
 	int error;
-	kernel_init(readonly ? SPA_MODE_READ :
+	kernel_init(readonly ? FREAD : (FREAD | FWRITE));
-	    (SPA_MODE_READ | SPA_MODE_WRITE));
+	g_zfs = libzfs_init();
 	ASSERT(g_zfs != NULL);
 	dmu_objset_register_type(DMU_OST_ZFS, space_delta_cb);
 	g_readonly = readonly;
 	g_importargs.unique = B_TRUE;
 	g_importargs.can_be_active = readonly;
 	g_pool = strdup(target);
-	error = zpool_find_config(NULL, target, &config, &g_importargs,
+	error = zpool_tryimport(g_zfs, target, &config, &g_importargs);
 	    &libzpool_config_ops);
 	if (error)
-		fatal(NULL, FTAG, "cannot import '%s'", target);
+		fatal(NULL, FTAG, "cannot import '%s': %s", target,
 		    libzfs_error_description(g_zfs));
 	props = NULL;
 	if (readonly) {
@@ -150,7 +153,6 @@ zhack_import(char *target, boolean_t readonly)
 	zfeature_checks_disable = B_TRUE;
 	error = spa_import(target, config, props,
 	    (readonly ?  ZFS_IMPORT_SKIP_MMP : ZFS_IMPORT_NORMAL));
 	fnvlist_free(config);
 	zfeature_checks_disable = B_FALSE;
 	if (error == EEXIST)
 		error = 0;
@@ -527,6 +529,7 @@ main(int argc, char **argv)
 		    "changes may not be committed to disk\n");
 	}
 	libzfs_fini(g_zfs);
 	kernel_fini();
 	return (rv);
@@ -1,5 +1,9 @@
 include $(top_srcdir)/config/Rules.am
 DEFAULT_INCLUDES += \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/lib/libspl/include
 sbin_PROGRAMS = zinject
 zinject_SOURCES = \
@@ -8,6 +12,8 @@ zinject_SOURCES = \
 	zinject.h
 zinject_LDADD = \
-	$(abs_top_builddir)/lib/libzfs/libzfs.la \
+	$(top_builddir)/lib/libnvpair/libnvpair.la \
-	$(abs_top_builddir)/lib/libzfs_core/libzfs_core.la \
+	$(top_builddir)/lib/libuutil/libuutil.la \
-	$(abs_top_builddir)/lib/libnvpair/libnvpair.la
+	$(top_builddir)/lib/libzpool/libzpool.la \
 	$(top_builddir)/lib/libzfs/libzfs.la \
 	$(top_builddir)/lib/libzfs_core/libzfs_core.la
@@ -20,11 +20,13 @@
 */
 /*
 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2012, 2020 by Delphix. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
 */
 #include <libzfs.h>
 #include <sys/zfs_context.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdarg.h>
@@ -47,6 +49,9 @@
 #include "zinject.h"
 extern void kernel_init(int);
 extern void kernel_fini(void);
 static int debug;
 static void
@@ -85,6 +90,8 @@ parse_pathname(const char *inpath, char *dataset, char *relpath,
    struct stat64 *statbuf)
 {
 	struct extmnttab mp;
 	FILE *fp;
 	int match;
 	const char *rel;
 	char fullpath[MAXPATHLEN];
@@ -97,7 +104,35 @@ parse_pathname(const char *inpath, char *dataset, char *relpath,
 		return (-1);
 	}
-	if (getextmntent(fullpath, &mp, statbuf) != 0) {
+	if (strlen(fullpath) >= MAXPATHLEN) {
 		(void) fprintf(stderr, "invalid object; pathname too long\n");
 		return (-1);
 	}
 	if (stat64(fullpath, statbuf) != 0) {
 		(void) fprintf(stderr, "cannot open '%s': %s\n",
 		    fullpath, strerror(errno));
 		return (-1);
 	}
 #ifdef HAVE_SETMNTENT
 	if ((fp = setmntent(MNTTAB, "r")) == NULL) {
 #else
 	if ((fp = fopen(MNTTAB, "r")) == NULL) {
 #endif
 		(void) fprintf(stderr, "cannot open %s\n", MNTTAB);
 		return (-1);
 	}
 	match = 0;
 	while (getextmntent(fp, &mp, sizeof (mp)) == 0) {
 		if (makedev(mp.mnt_major, mp.mnt_minor) == statbuf->st_dev) {
 			match = 1;
 			break;
 		}
 	}
 	if (!match) {
 		(void) fprintf(stderr, "cannot find mountpoint for '%s'\n",
 		    fullpath);
 		return (-1);
@@ -126,32 +161,51 @@ parse_pathname(const char *inpath, char *dataset, char *relpath,
 }
 /*
- * Convert from a dataset to a objset id. Note that
+ * Convert from a (dataset, path) pair into a (objset, object) pair.  Note that
- * we grab the object number from the inode number.
+ * we grab the object number from the inode number, since looking this up via
 * libzpool is a real pain.
 */
 /* ARGSUSED */
 static int
-object_from_path(const char *dataset, uint64_t object, zinject_record_t *record)
+object_from_path(const char *dataset, const char *path, struct stat64 *statbuf,
    zinject_record_t *record)
 {
-	zfs_handle_t *zhp;
+	objset_t *os;
 	int err;
-	if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_DATASET)) == NULL)
+	/*
 	 * Before doing any libzpool operations, call sync() to ensure that the
 	 * on-disk state is consistent with the in-core state.
 	 */
 	sync();
 	err = dmu_objset_own(dataset, DMU_OST_ZFS, B_TRUE, FTAG, &os);
 	if (err != 0) {
 		(void) fprintf(stderr, "cannot open dataset '%s': %s\n",
 		    dataset, strerror(err));
 		return (-1);
 	}
-	record->zi_objset = zfs_prop_get_int(zhp, ZFS_PROP_OBJSETID);
+	record->zi_objset = dmu_objset_id(os);
-	record->zi_object = object;
+	record->zi_object = statbuf->st_ino;
-	zfs_close(zhp);
+	dmu_objset_disown(os, FTAG);
 	return (0);
 }
 /*
- * Initialize the range based on the type, level, and range given.
+ * Calculate the real range based on the type, level, and range given.
 */
 static int
-initialize_range(err_type_t type, int level, char *range,
+calculate_range(const char *dataset, err_type_t type, int level, char *range,
    zinject_record_t *record)
 {
 	objset_t *os = NULL;
 	dnode_t *dn = NULL;
 	int err;
 	int ret = -1;
 	/*
 	 * Determine the numeric range from the string.
 	 */
@@ -179,7 +233,7 @@ initialize_range(err_type_t type, int level, char *range,
 			(void) fprintf(stderr, "invalid range '%s': must be "
 			    "a numeric range of the form 'start[,end]'\n",
 			    range);
-			return (-1);
+			goto out;
 		}
 	}
@@ -199,7 +253,7 @@ initialize_range(err_type_t type, int level, char *range,
 		if (range != NULL) {
 			(void) fprintf(stderr, "range cannot be specified when "
 			    "type is 'dnode'\n");
-			return (-1);
+			goto out;
 		}
 		record->zi_start = record->zi_object * sizeof (dnode_phys_t);
@@ -208,9 +262,76 @@ initialize_range(err_type_t type, int level, char *range,
 		break;
 	}
-	record->zi_level = level;
+	/*
 	 * Get the dnode associated with object, so we can calculate the block
 	 * size.
 	 */
 	if ((err = dmu_objset_own(dataset, DMU_OST_ANY,
 	    B_TRUE, FTAG, &os)) != 0) {
 		(void) fprintf(stderr, "cannot open dataset '%s': %s\n",
 		    dataset, strerror(err));
 		goto out;
 	}
-	return (0);
+	if (record->zi_object == 0) {
 		dn = DMU_META_DNODE(os);
 	} else {
 		err = dnode_hold(os, record->zi_object, FTAG, &dn);
 		if (err != 0) {
 			(void) fprintf(stderr, "failed to hold dnode "
 			    "for object %llu\n",
 			    (u_longlong_t)record->zi_object);
 			goto out;
 		}
 	}
 	ziprintf("data shift: %d\n", (int)dn->dn_datablkshift);
 	ziprintf(" ind shift: %d\n", (int)dn->dn_indblkshift);
 	/*
 	 * Translate range into block IDs.
 	 */
 	if (record->zi_start != 0 || record->zi_end != -1ULL) {
 		record->zi_start >>= dn->dn_datablkshift;
 		record->zi_end >>= dn->dn_datablkshift;
 	}
 	/*
 	 * Check level, and then translate level 0 blkids into ranges
 	 * appropriate for level of indirection.
 	 */
 	record->zi_level = level;
 	if (level > 0) {
 		ziprintf("level 0 blkid range: [%llu, %llu]\n",
 		    record->zi_start, record->zi_end);
 		if (level >= dn->dn_nlevels) {
 			(void) fprintf(stderr, "level %d exceeds max level "
 			    "of object (%d)\n", level, dn->dn_nlevels - 1);
 			goto out;
 		}
 		if (record->zi_start != 0 || record->zi_end != 0) {
 			int shift = dn->dn_indblkshift - SPA_BLKPTRSHIFT;
 			for (; level > 0; level--) {
 				record->zi_start >>= shift;
 				record->zi_end >>= shift;
 			}
 		}
 	}
 	ret = 0;
 out:
 	if (dn) {
 		if (dn != DMU_META_DNODE(os))
 			dnode_rele(dn, FTAG);
 	}
 	if (os)
 		dmu_objset_disown(os, FTAG);
 	return (ret);
 }
 int
@@ -222,6 +343,8 @@ translate_record(err_type_t type, const char *object, const char *range,
 	struct stat64 statbuf;
 	int ret = -1;
 	kernel_init(FREAD);
 	debug = (getenv("ZINJECT_DEBUG") != NULL);
 	ziprintf("translating: %s\n", object);
@@ -273,16 +396,16 @@ translate_record(err_type_t type, const char *object, const char *range,
 	/*
 	 * Convert (dataset, file) into (objset, object)
 	 */
-	if (object_from_path(dataset, statbuf.st_ino, record) != 0)
+	if (object_from_path(dataset, path, &statbuf, record) != 0)
 		goto err;
 	ziprintf("raw objset: %llu\n", record->zi_objset);
 	ziprintf("raw object: %llu\n", record->zi_object);
 	/*
-	 * For the given object, initialize the range in bytes
+	 * For the given object, calculate the real (type, level, range)
 	 */
-	if (initialize_range(type, level, (char *)range, record) != 0)
+	if (calculate_range(dataset, type, level, (char *)range, record) != 0)
 		goto err;
 	ziprintf("    objset: %llu\n", record->zi_objset);
@@ -304,6 +427,7 @@ translate_record(err_type_t type, const char *object, const char *range,
 	ret = 0;
 err:
 	kernel_fini();
 	return (ret);
 }
@@ -388,7 +512,7 @@ translate_device(const char *pool, const char *device, err_type_t label_type,
 		record->zi_end = record->zi_start + VDEV_PAD_SIZE - 1;
 		break;
 	case TYPE_LABEL_PAD2:
-		record->zi_start = offsetof(vdev_label_t, vl_be);
+		record->zi_start = offsetof(vdev_label_t, vl_pad2);
 		record->zi_end = record->zi_start + VDEV_PAD_SIZE - 1;
 		break;
 	}
--- a/Show More
+++ b/Show More
		`@@ -0,0 +1,3 @@`
							`preprocessorErrorDirective:./module/zfs/vdev_raidz_math_avx512f.c:243`
							`preprocessorErrorDirective:./module/zfs/vdev_raidz_math_sse2.c:266`
		`@@ -1,2 +0,0 @@`
			`The [OpenZFS Code of Conduct](http://www.open-zfs.org/wiki/Code_of_Conduct)`
			`applies to spaces associated with the OpenZFS project, including GitHub.`
		`@@ -1,3 +0,0 @@`
			`Descriptions of all releases can be found on github:`

			`https://github.com/openzfs/zfs/releases`