Commit Graph

198 Commits

Author SHA1 Message Date
Brian Behlendorf
3da3488e63
Fix shellcheck v0.4.6 warnings
Resolve new warnings reported after upgrading to shellcheck
version 0.4.6.  This patch contains no functional changes.

* egrep is non-standard and deprecated. Use grep -E instead. [SC2196]
* Check exit code directly with e.g. 'if mycmd;', not indirectly
  with $?.  [SC2181]  Suppressed.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7040
2018-01-17 10:17:16 -08:00
Brian Behlendorf
e1a0850c35
Force ztest to always use /dev/urandom
For ztest, which is solely for testing, using a pseudo random
is entirely reasonable.  Using /dev/urandom ensures the system
entropy pool doesn't get depleted thus stalling the testing.
This is a particular problem when testing in VMs.

Reviewed-by: Tim Chase <tim@chase2k.com>
Reviewed by: Thomas Caputi <tcaputi@datto.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7017 
Closes #7036
2018-01-12 09:36:26 -08:00
Brian Behlendorf
fed90353d7
Support -fsanitize=address with --enable-asan
When --enable-asan is provided to configure then build all user
space components with fsanitize=address.  For kernel support
use the Linux KASAN feature instead.

https://github.com/google/sanitizers/wiki/AddressSanitizer

When using gcc version 4.8 any test case which intentionally
generates a core dump will fail when using --enable-asan.
The default behavior is to disable core dumps and only newer
versions allow this behavior to be controled at run time with
the ASAN_OPTIONS environment variable.

Additionally, this patch includes some build system cleanup.

* Rules.am updated to set the minimum AM_CFLAGS, AM_CPPFLAGS,
  and AM_LDFLAGS.  Any additional flags should be added on a
  per-Makefile basic.  The --enable-debug and --enable-asan
  options apply to all user space binaries and libraries.

* Compiler checks consolidated in always-compiler-options.m4
  and renamed for consistency.

* -fstack-check compiler flag was removed, this functionality
  is provided by asan when configured with --enable-asan.

* Split DEBUG_CFLAGS in to DEBUG_CFLAGS, DEBUG_CPPFLAGS, and
  DEBUG_LDFLAGS.

* Moved default kernel build flags in to module/Makefile.in and
  split in to ZFS_MODULE_CFLAGS and ZFS_MODULE_CPPFLAGS.  These
  flags are set with the standard ccflags-y kbuild mechanism.

* -Wframe-larger-than checks applied only to binaries or
  libraries which include source files which are built in
  both user space and kernel space.  This restriction is
  relaxed for user space only utilities.

* -Wno-unused-but-set-variable applied only to libzfs and
  libzpool.  The remaining warnings are the result of an
  ASSERT using a variable when is always declared.

* -D_POSIX_PTHREAD_SEMANTICS and -D__EXTENSIONS__ dropped
  because they are Solaris specific and thus not needed.

* Ensure $GDB is defined as gdb by default in zloop.sh.

Signed-off-by: DHE <git@dehacked.net>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7027
2018-01-10 10:49:27 -08:00
Dominik Hassler
2e7c1bb35a OpenZFS 8794 - cstyle generates warnings with recent perl
Authored by: Dominik Hassler <hadfl@omniosce.org>
Reviewed by: Andy Fiddaman <andy@omniosce.org>
Reviewed by: Igor Kozhukhov <igor@dilos.org>
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Dan McDonald <danmcd@joyent.com>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/8794
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/578f67364c
Closes #6973
2017-12-19 12:54:08 -08:00
David Qian
f6940bb9ea Enable QAT support in zfs-dkms RPM
Enable QAT accelerated gzip compression in zfs-dkms RPM package when
environment variant ICP_ROOT is set to QAT drive source code folder
and QAT hardware presence.  Otherwise, use default gzip compression.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: David Qian <david.qian@intel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6932
2017-12-14 12:44:27 -05:00
Prakash Surya
1ce23dcaff OpenZFS 8585 - improve batching done in zil_commit()
Authored by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Approved by: Dan McDonald <danmcd@joyent.com>
Ported-by: Prakash Surya <prakash.surya@delphix.com>

Problem
=======

The current implementation of zil_commit() can introduce significant
latency, beyond what is inherent due to the latency of the underlying
storage. The additional latency comes from two main problems:

 1. When there's outstanding ZIL blocks being written (i.e. there's
    already a "writer thread" in progress), then any new calls to
    zil_commit() will block waiting for the currently oustanding ZIL
    blocks to complete. The blocks written for each "writer thread" is
    coined a "batch", and there can only ever be a single "batch" being
    written at a time. When a batch is being written, any new ZIL
    transactions will have to wait for the next batch to be written,
    which won't occur until the current batch finishes.

    As a result, the underlying storage may not be used as efficiently
    as possible. While "new" threads enter zil_commit() and are blocked
    waiting for the next batch, it's possible that the underlying
    storage isn't fully utilized by the current batch of ZIL blocks. In
    that case, it'd be better to allow these new threads to generate
    (and issue) a new ZIL block, such that it could be serviced by the
    underlying storage concurrently with the other ZIL blocks that are
    being serviced.

 2. Any call to zil_commit() must wait for all ZIL blocks in its "batch"
    to complete, prior to zil_commit() returning. The size of any given
    batch is proportional to the number of ZIL transaction in the queue
    at the time that the batch starts processing the queue; which
    doesn't occur until the previous batch completes. Thus, if there's a
    lot of transactions in the queue, the batch could be composed of
    many ZIL blocks, and each call to zil_commit() will have to wait for
    all of these writes to complete (even if the thread calling
    zil_commit() only cared about one of the transactions in the batch).

To further complicate the situation, these two issues result in the
following side effect:

 3. If a given batch takes longer to complete than normal, this results
    in larger batch sizes, which then take longer to complete and
    further drive up the latency of zil_commit(). This can occur for a
    number of reasons, including (but not limited to): transient changes
    in the workload, and storage latency irregularites.

Solution
========

The solution attempted by this change has the following goals:

 1. no on-disk changes; maintain current on-disk format.
 2. modify the "batch size" to be equal to the "ZIL block size".
 3. allow new batches to be generated and issued to disk, while there's
    already batches being serviced by the disk.
 4. allow zil_commit() to wait for as few ZIL blocks as possible.
 5. use as few ZIL blocks as possible, for the same amount of ZIL
    transactions, without introducing significant latency to any
    individual ZIL transaction. i.e. use fewer, but larger, ZIL blocks.

In theory, with these goals met, the new allgorithm will allow the
following improvements:

 1. new ZIL blocks can be generated and issued, while there's already
    oustanding ZIL blocks being serviced by the storage.
 2. the latency of zil_commit() should be proportional to the underlying
    storage latency, rather than the incoming synchronous workload.

Porting Notes
=============

Due to the changes made in commit 119a394ab0, the lifetime of an itx
structure differs than in OpenZFS. Specifically, the itx structure is
kept around until the data associated with the itx is considered to be
safe on disk; this is so that the itx's callback can be called after the
data is committed to stable storage. Since OpenZFS doesn't have this itx
callback mechanism, it's able to destroy the itx structure immediately
after the itx is committed to an lwb (before the lwb is written to
disk).

To support this difference, and to ensure the itx's callbacks can still
be called after the itx's data is on disk, a few changes had to be made:

  * A list of itxs was added to the lwb structure. This list contains
    all of the itxs that have been committed to the lwb, such that the
    callbacks for these itxs can be called from zil_lwb_flush_vdevs_done(),
    after the data for the itxs is committed to disk.

  * A list of itxs was added on the stack of the zil_process_commit_list()
    function; the "nolwb_itxs" list. In some circumstances, an itx may
    not be committed to an lwb (e.g. if allocating the "next" ZIL block
    on disk fails), so this list is used to keep track of which itxs
    fall into this state, such that their callbacks can be called after
    the ZIL's writer pipeline is "stalled".

  * The logic to actually call the itx's callback was moved into the
    zil_itx_destroy() function. Since all consumers of zil_itx_destroy()
    were effectively performing the same logic (i.e. if callback is
    non-null, call the callback), it seemed like useful code cleanup to
    consolidate this logic into a single function.

Additionally, the existing Linux tracepoint infrastructure dealing with
the ZIL's probes and structures had to be updated to reflect these code
changes. Specifically:

  * The "zil__cw1" and "zil__cw2" probes were removed, so they had to be
    removed from "trace_zil.h" as well.

  * Some of the zilog structure's fields were removed, which affected
    the tracepoint definitions of the structure.

  * New tracepoints had to be added for the following 3 new probes:
      * zil__process__commit__itx
      * zil__process__normal__itx
      * zil__commit__io__error

OpenZFS-issue: https://www.illumos.org/issues/8585
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/5d95a3a
Closes #6566
2017-12-05 09:39:16 -08:00
LOLi
271955da3e Fix zfs-tests.sh single test functionality
Without any tag specified into the runtime-generated runfile the
test-runner will not execute the test provided from the command line:
fix this by adding tag information to the custom runfile.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #6826
2017-11-07 14:55:31 -08:00
Giuseppe Di Natale
9a810efb02 Allow test-runner to filter test groups by tag
Enable test-runner to accept a list of tags to identify
which test groups the user wishes to run.

Also allow test-runner to perform multiple iterations
of a test run.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6788
2017-11-03 09:53:32 -07:00
Giuseppe Di Natale
69b229bd60 commitcheck: Multiple OpenZFS ports in commit
Allow commitcheck.sh to handle multiple OpenZFS ports in
a single commit. This is useful in the cases when a change
upstream has bug fixes and it makes sense to port them with
the original patch.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Chris Dunlop <chris@onthe.net.au>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6780
2017-10-26 10:23:58 -07:00
Giuseppe Di Natale
8dcaf243d7 Add Coverity defect fix commit checker support
Enable commitcheck.sh to test if a commit message is
in the expected format for a coverity defect fix.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6777
2017-10-26 10:17:00 -07:00
Brian Behlendorf
aea899a6fa Increase default zloop.sh vdev size
The default 128M vdev size used by zloop.sh isn't always large
enough and can result in ENOSPC failures which suspend the pool.
Increase the default size to 512M and provide a -s option which
can be used to specify an alternate size.

This does increase the free space requirements to run zloop.sh.
However, since the vdevs are sparse 4x the space is not required.

Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6758
2017-10-13 12:39:39 -07:00
Tom Caputi
4807c0badb Encryption patch follow-up
* PBKDF2 implementation changed to OpenSSL implementation.

* HKDF implementation moved to its own file and tests
  added to ensure correctness.

* Removed libzfs's now unnecessary dependency on libzpool
  and libicp.

* Ztest can now create and test encrypted datasets. This is
  currently disabled until issue #6526 is resolved, but
  otherwise functions as advertised.

* Several small bug fixes discovered after enabling ztest
  to run on encrypted datasets.

* Fixed coverity defects added by the encryption patch.

* Updated man pages for encrypted send / receive behavior.

* Fixed a bug where encrypted datasets could receive
  DRR_WRITE_EMBEDDED records.

* Minor code cleanups / consolidation.

Signed-off-by: Tom Caputi <tcaputi@datto.com>
2017-10-11 16:54:48 -04:00
LOLi
3fd3e56cfd Fix some ZFS Test Suite issues
* Add 'zfs bookmark' coverage (zfs_bookmark_cliargs)

 * Add OpenZFS 8166 coverage (zpool_scrub_offline_device)

 * Fix "busy" zfs_mount_remount failures

 * Fix bootfs_003_pos, bootfs_004_neg, zdb_005_pos local cleanup

 * Update usage of $KEEP variable, add get_all_pools() function

 * Enable history_008_pos and rsend_019_pos (non-32bit builders)

 * Enable zfs_copies_005_neg, update local cleanup

 * Fix zfs_send_007_pos (large_dnode + OpenZFS 8199)

 * Fix rollback_003_pos (use dataset name, not mountpoint, to unmount)

 * Update default_raidz_setup() to work properly with more than 3 disks

 * Use $TEST_BASE_DIR instead of hardcoded (/var)/tmp for file VDEVs

 * Update usage of /dev/random to /dev/urandom

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Issue #6086 
Closes #5658 
Closes #6143 
Closes #6421 
Closes #6627 
Closes #6632
2017-09-25 10:32:34 -07:00
Don Brady
5df5d06a8d Cleanup zloop working directory after each pass
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed by: John Kennedy <jwk404@gmail.com>
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Issue #6595 
Closes #6663
2017-09-21 10:17:56 -07:00
Giuseppe Di Natale
ea49beba66 Correct shellcheck errors
The ZFS buildbot moved to using Ubuntu 17.04 for the
STYLE builder which has a newer version of shellcheck.
Correct the new issues it discovers.

Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6647
2017-09-18 14:23:09 -07:00
Brian Behlendorf
5c214ae318 Fix volume WR_INDIRECT log replay
The portion of the zvol_replay_write() handler responsible for
replaying indirect log records for some reason never existed.
As a result indirect log records were not being correctly replayed.

This went largely unnoticed since the majority of zvol log records
were of the type WR_COPIED or WR_NEED_COPY prior to OpenZFS 7578.

This patch updates zvol_replay_write() to correctly handle these
log records and adds a new test case which verifies volume replay
to prevent any regression.  The existing test case which verified
replay on filesystem was renamed slog_replay_fs.ksh for clarity.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6603 
Closes #6615
2017-09-08 15:07:00 -07:00
Brian Behlendorf
133a5c6598 zimport.sh: Allow custom pool create options
Allow custom options to be passed to 'zpool create` when creating
a new pool.

Normally zimport.sh is intented to prevent accidentally introduced
incompatibilities so we want the default behavior.  However, when
introducing a known incompatibility with a feature flag we need a
way to disable the feature.  By adding a line like the following
to the commit message the feature can be disabled allowing the
pool to be compatibile with older versions.

TEST_ZIMPORT_CREATE_OPTIONS="-o feature@encryption=disabled"

* Additionally fix /dev/nul -> /dev/null typo and minor white space
  formating issues.

* Updated fail function to print a message and exit with 1 for use
  by the buildbot.

* Silence warnings when zlib_inflate / zlib_default modules don't
  exist.  This can happen when they're build in to the kernel.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6520
2017-08-21 10:00:12 -07:00
Brian Behlendorf
c8f9061fc7 Retire legacy test infrastructure
* Removed zpios kmod, utility, headers and man page.

* Removed unused scripts zpios-profile/*, zpios-test/*,
  zpool-config/*, smb.sh, zpios-sanity.sh, zpios-survey.sh,
  zpios.sh, and zpool-create.sh.

* Removed zfs-script-config.sh.in.  When building 'make' generates
  a common.sh with in-tree path information from the common.sh.in
  template.  This file and sourced by the test scripts and used
  for in-tree testing, it is not included in the packages.  When
  building packages 'make install' uses the same template to
  create a new common.sh which is appropriate for the packaging.

* Removed unused functions/variables from scripts/common.sh.in.
  Only minimal path information and configuration environment
  variables remain.

* Removed unused scripts from scripts/ directory.

* Remaining shell scripts in the scripts directory updated to
  cleanly pass shellcheck and added to checked scripts.

* Renamed tests/test-runner/cmd/ to tests/test-runner/bin/ to
  match install location name.

* Removed last traces of the --enable-debug-dmu-tx configure
  options which was retired some time ago.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6509
2017-08-15 17:26:38 -07:00
Brian Behlendorf
46364cb2f3 Add libtpool (thread pools)
OpenZFS provides a library called tpool which implements thread
pools for user space applications.  Porting this library means
the zpool utility no longer needs to borrow the kernel mutex and
taskq interfaces from libzpool.  This code was updated to use
the tpool library which behaves in a very similar fashion.

Porting libtpool was relatively straight forward and minimal
modifications were needed.  The core changes were:

* Fully convert the library to use pthreads.
* Updated signal handling.
* lmalloc/lfree converted to calloc/free
* Implemented portable pthread_attr_clone() function.

Finally, update the build system such that libzpool.so is no
longer linked in to zfs(8), zpool(8), etc.  All that is required
is libzfs to which the zcommon soures were added (which is the way
it always should have been).  Removing the libzpool dependency
resulted in several build issues which needed to be resolved.

* Moved zfeature support to module/zcommon/zfeature_common.c
* Moved ratelimiting to to module/zfs/zfs_ratelimit.c
* Moved get_system_hostid() to lib/libspl/gethostid.c
* Removed use of cmn_err() in zcommon source
* Removed dprintf_setup() call from zpool_main.c and zfs_main.c
* Removed highbit() and lowbit()
* Removed unnecessary library dependencies from Makefiles
* Removed fletcher-4 kstat in user space
* Added sha2 support explicitly to libzfs
* Added highbit64() and lowbit64() to zpool_util.c

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6442
2017-08-09 15:31:08 -07:00
Olaf Faaland
379ca9cf2b Multi-modifier protection (MMP)
Add multihost=on|off pool property to control MMP.  When enabled
a new thread writes uberblocks to the last slot in each label, at a
set frequency, to indicate to other hosts the pool is actively imported.
These uberblocks are the last synced uberblock with an updated
timestamp.  Property defaults to off.

During tryimport, find the "best" uberblock (newest txg and timestamp)
repeatedly, checking for change in the found uberblock.  Include the
results of the activity test in the config returned by tryimport.
These results are reported to user in "zpool import".

Allow the user to control the period between MMP writes, and the
duration of the activity test on import, via a new module parameter
zfs_multihost_interval.  The period is specified in milliseconds.  The
activity test duration is calculated from this value, and from the
mmp_delay in the "best" uberblock found initially.

Add a kstat interface to export statistics about Multiple Modifier
Protection (MMP) updates. Include the last synced txg number, the
timestamp, the delay since the last MMP update, the VDEV GUID, the VDEV
label that received the last MMP update, and the VDEV path.  Abbreviated
output below.

$ cat /proc/spl/kstat/zfs/mypool/multihost
31 0 0x01 10 880 105092382393521 105144180101111
txg   timestamp  mmp_delay   vdev_guid   vdev_label vdev_path
20468    261337  250274925   68396651780       3    /dev/sda
20468    261339  252023374   6267402363293     1    /dev/sdc
20468    261340  252000858   6698080955233     1    /dev/sdx
20468    261341  251980635   783892869810      2    /dev/sdy
20468    261342  253385953   8923255792467     3    /dev/sdd
20468    261344  253336622   042125143176      0    /dev/sdab
20468    261345  253310522   1200778101278     2    /dev/sde
20468    261346  253286429   0950576198362     2    /dev/sdt
20468    261347  253261545   96209817917       3    /dev/sds
20468    261349  253238188   8555725937673     3    /dev/sdb

Add a new tunable zfs_multihost_history to specify the number of MMP
updates to store history for. By default it is set to zero meaning that
no MMP statistics are stored.

When using ztest to generate activity, for automated tests of the MMP
function, some test functions interfere with the test.  For example, the
pool is exported to run zdb and then imported again.  Add a new ztest
function, "-M", to alter ztest behavior to prevent this.

Add new tests to verify the new functionality.  Tests provided by
Giuseppe Di Natale.

Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Ned Bass <bass6@llnl.gov>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Olaf Faaland <faaland1@llnl.gov>
Closes #745
Closes #6279
2017-07-13 13:54:00 -04:00
George Melikov
27ef66ef19 ZTS: minor typo and old default values
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #6298
2017-07-03 14:21:12 -07:00
Giuseppe Di Natale
099700d9df zpool iostat/status -c improvements
Users can now provide their own scripts to be run
with 'zpool iostat/status -c'. User scripts should be
placed in ~/.zpool.d to be included in zpool's
default search path.

Provide a script which can be used with
'zpool iostat|status -c' that will return the type of
device (hdd, sdd, file).

Provide a script to get various values from smartctl
when using 'zpool iostat/status -c'.

Allow users to define the ZPOOL_SCRIPTS_PATH
environment variable which can be used to override
the default 'zpool iostat/status -c' search path.

Allow the ZPOOL_SCRIPTS_ENABLED environment
variable to enable or disable 'zpool status/iostat -c'
functionality.

Use the new smart script to provide the serial command.

Install /etc/sudoers.d/zfs file which contains the sudoer
rule for smartctl as a sample.

Allow 'zpool iostat/status -c' tests to run in tree.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #6121 
Closes #6153
2017-06-05 10:52:15 -07:00
Brian Behlendorf
4358afa0f2 Retire zconfig.sh
All of the test coverage provided by this script is now handled
as part of the ZFS Test Suite.  Remove it.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6128
2017-05-22 12:34:42 -04:00
Brian Behlendorf
3f03fc8df3 Add zpool events tests
* events_001_pos - Verify the expected events are generated when
  invoking the various zpool sub-commands.  These events must
  appear in `zpool event` and be consumed by the ZED.

* events_002_pos - Verify the ZED consumes events which were
  generated while it wasn't running when it is started.
  Additionally, verify that events are only processed once.

As part of this change the default.cfg used by the test suite
was changed to a default.cfg.in file.  This was needed so the
install location of all zed scripts, not only the enabled ones,
could be reliably determined.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6128
2017-05-22 12:34:42 -04:00
Brian Behlendorf
8c54ddd33a Enable additional test cases
Enable additional test cases, in most cases this required a few
minor modifications to the test scripts.  In a few cases a real
bug was uncovered and fixed.  And in a handful of cases where pools
are layered on pools the test case will be skipped until this is
supported.  Details below for each test case.

* zpool_add_004_pos - Skip test on Linux until adding zvols to pools
  is fully supported and deadlock free.

* zpool_add_005_pos.ksh - Skip dumpadm portion of the test which isn't
  relevant for Linux.  The find_vfstab_dev, find_mnttab_dev, and
  save_dump_dev functions were updated accordingly for Linux.  Add
  O_EXCL to the in-use check to prevent the -f (force) option from
  working for mounted filesystems and improve the resulting error.

* zpool_add_006_pos - Update test case such that it doesn't depend
  on nested pools.  Switch to truncate from mkfile to reduce space
  requirements and speed up the test case.

* zpool_clear_001_pos - Speed up test case by filling filesystem to
  25% capacity.

* zpool_create_002_pos, zpool_create_004_pos - Use sparse files for
  file vdevs in order to avoid increasing the partition size.

* zpool_create_006_pos - 6ba1ce9 allows raidz+mirror configs with
  similar redundancy.  Updating the valid_args and forced_args cases.

* zpool_create_008_pos - Disable overlapping partition portion.

* zpool_create_011_neg - Fix to correctly create the extra partition.
  Modified zpool_vdev.c to use fstat64_blk() wrapper which includes
  the st_size even for block devices.

* zpool_create_012_neg - Updated to properly find swap devices.

* zpool_create_014_neg, zpool_create_015_neg - Updated to use
  swap_setup() and swap_cleanup() wrappers which do the right thing
  on Linux and Illumos.  Removed '-n' option which succeeds under
  Linux due to differences in the in-use checks.

* zpool_create_016_pos.ksh - Skipped test case isn't useful.

* zpool_create_020_pos - Added missing / to cleanup() function.
  Remove cache file prior to test to ensure a clean environment
  and avoid false positives.

* zpool_destroy_001_pos - Removed test case which creates a pool on
  a zvol.  This is more likely to deadlock under Linux and has never
  been completely supported on any platform.

* zpool_destroy_002_pos - 'zpool destroy -f' is unsupported on Linux.
  Mount point must not be busy in order to unmount them.

* zfs_destroy_001_pos - Handle EBUSY error which can occur with
  volumes when racing with udev.

* zpool_expand_001_pos, zpool_expand_003_neg - Skip test on Linux
  until adding zvols to pools is fully supported and deadlock free.
  The test could be modified to use loop-back devices but it would
  be preferable to use the test case as is for improved coverage.

* zpool_export_004_pos - Updated test case to such that it doesn't
  depend on nested pools.  Normal file vdev under /var/tmp are fine.

* zpool_import_all_001_pos - Updated to skip partition 1, which is
  known as slice 2, on Illumos.  This prevents overwriting the
  default TESTPOOL which was causing the failure.

* zpool_import_002_pos, zpool_import_012_pos - No changes needed.

* zpool_remove_003_pos - No changes needed

* zpool_upgrade_002_pos, zpool_upgrade_004_pos - Root cause addressed
  by upstream OpenZFS commit 3b7f360.

* zpool_upgrade_007_pos - Disabled in test case due to known failure.
  Opened issue https://github.com/zfsonlinux/zfs/issues/6112

* zvol_misc_002_pos - Updated to to use ext2.

* zvol_misc_001_neg, zvol_misc_003_neg, zvol_misc_004_pos,
  zvol_misc_005_neg, zvol_misc_006_pos - Moved to skip list, these
  test case could be updated to use Linux's crash dump facility.

* zvol_swap_* - Updated to use swap_setup/swap_cleanup helpers.
  File creation switched from /tmp to /var/tmp.  Enabled minimal
  useful tests for Linux, skip test cases which aren't applicable.

Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: loli10K <ezomori.nozomu@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #3484
Issue #5634
Issue #2437
Issue #5202
Issue #4034
Closes #6095
2017-05-11 14:27:57 -07:00
Brian Behlendorf
00481e7dad OpenZFS 7503 - zfs-test should tail ::zfs_dbgmsg on test failure
Authored by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Approved by: Gordon Ross <gordon.w.ross@gmail.com>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>

Porting Notes:
- Enable internal log for DEBUG builds and in zfs-tests.sh.
- callbacks/zfs_dbgmsg.ksh - Dump interal log via kstat.
- callbacks/zfs_dmesg.ksh - Dump dmesg log.
- default.cfg - 'Test Suite Specific Commands' dropped.

OpenZFS-issue: https://www.illumos.org/issues/7503
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/55a1300
Closes #6002
2017-04-12 13:36:48 -07:00
Giuseppe Di Natale
7469863167 Correct shellcheck make recipe
Consolidated the shellcheck call in the
make recipe down to a single call of
shellcheck. Corrected script errors that
have been skipped. Corrected script errors
that have been introduced because make
wasn't reporting any errors from shellcheck.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5976
2017-04-06 17:16:41 -07:00
John Wren Kennedy
c1d9abf905 OpenZFS 7290 - ZFS test suite needs to control what utilities it can run
Authored by: John Wren Kennedy <john.kennedy@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Gordon Ross <gordon.w.ross@gmail.com>
Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

Porting Notes:
- Utilities which aren't available under Linux have been removed.
- Because of sudo's default secure path behavior PATH must be
  explicitly reset at the top of libtest.shlib.  This avoids the
  need for all users to customize secure path on their system.
- Updated ZoL infrastructure to manage constrained path
- Updated all test cases
- Check permissions for usergroup tests
- When testing in-tree create links under bin/
- Update fault cleanup such that missing files during
  cleanup aren't fatal.
- Configure su environment with constrained path

OpenZFS-issue: https://www.illumos.org/issues/7290
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/1d32ba6
Closes #5903
2017-04-06 09:25:36 -07:00
Giuseppe Di Natale
3f2da6cb73 Prevent commitcheck.sh from running twice
A stray semicolon was causing commitcheck.sh
to run twice when running make checkstyle.
Updated regexes for matching tagged lines.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5952
2017-04-03 14:20:01 -07:00
Giuseppe Di Natale
cb524aa23a Commit message format in contributing guidelines
Add the need to have a commit message with a specific
format to the contributing guidelines. Provide a script
to help enforce commit message style.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5943
2017-03-31 09:33:38 -07:00
Giuseppe Di Natale
c552fbc5f0 Enable shellcheck to run for select scripts
Enable shellcheck to run on zed scripts,
paxcheck.sh, zfs-tests.sh, zfs.sh, and zloop.sh.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5812
2017-03-09 10:20:15 -08:00
Giuseppe Di Natale
d25534f875 Bug fixes for single test runs in zfs-tests
Correctly remove the temporary runfile after the
single test is run.

Cleanup and setup scripts are relative to the
test suite's location, correct how we look for
those scripts.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5844
2017-02-28 18:02:48 -08:00
Giuseppe Di Natale
d8fa599fab Allow zfs-tests to run a single test
Add a -t flag to zfs-tests to allow a user
to run a single test by providing the path
to the test relative to STF_SUITE.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Closes #5775
2017-02-24 10:59:24 -08:00
Matthew Ahrens
d7958b4cda OpenZFS 7104 - increase indirect block size
Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7104
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4b5c8e9
Closes #5679
2017-02-09 10:27:02 -08:00
Brian Behlendorf
b0eac56a4d Move ziltest.sh to the ZTS framework
The ziltest.sh script is a test case designed to verify the correct
functioning of the ZIL.  For historical reasons it was never added
to the test suite and was always run independantly.

This change rectifies that.  The existing ziltest.sh has been
translated in to `slog_015_pos.ksh` and added to the existing
slog test cases.

Reviewed-by: Don Brady <don.brady@intel.com>
Reviewed-by: Chunwei Chen <david.chen@osnexus.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5758
2017-02-08 17:28:22 -08:00
Giuseppe Di Natale
d21d5b8248 OpenZFS 4521 - zfstest is trying to execute evil "zfs unmount -a"
Authored by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Andriy Gapon <avg@FreeBSD.org>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

Porting Notes:
- Correctly set __ZFS_POOL_RESTRICT in inherit_001_pos

OpenZFS-issue: https://www.illumos.org/issues/4521
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/8808ac5
Closes #5674
2017-02-03 13:24:44 -08:00
Giuseppe Di Natale
d96e543954 OpenZFS 7348 - cstyle can't handle ellipsis on continuation line
Authored by: Hans Rosenfeld <hans.rosenfeld@nexenta.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Jason King <jason.brian.king@gmail.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/7348
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/c667d21
Closes #5655
2017-01-26 12:40:22 -08:00
Giuseppe Di Natale
d4e0040781 OpenZFS 6999 - fix 'Use of uninitialized value $picky in numeric eq (==)' in cstyle
Authored by: Richard PALO <richard@NetBSD.org>
Reviewed by: Garrett D'Amore <garrett@damore.org>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: Giuseppe Di Natale <dinatale2@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/6999
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/002ec3e
Closes #5653
2017-01-26 12:36:56 -08:00
Paul Dagnelie
ec441a9c53 OpenZFS 6459 - cstyle doesn't detect opening braces on the same line as function header
Authored by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Alex Reece <alex@delphix.com>
Reviewed by: Albert Lee <trisk@omniti.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Ported-by: George Melikov mail@gmelikov.ru

OpenZFS-issue: https://www.illumos.org/issues/6459
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/c4567a6

Porting notes:
These changes are adopted for ZoL codebase because of
many false positive warnings.
2017-01-22 13:25:40 -08:00
clefru
2dbf1bf829 Don't hardcode perl path but use env instead
Also replace the deprecated "-w" argument with "use warnings;", as
otherwise env would invoke a command called "perl -w".

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Clemens Fruhwirth <clemens@endorphin.org>
Closes #5552
2017-01-13 15:57:34 -08:00
ka7
4e33ba4c38 Fix spelling
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Haakan T Johansson <f96hajo@chalmers.se>
Closes #5547 
Closes #5543
2017-01-03 11:31:18 -06:00
Jason Zaman
f26eb42862 Add paxcheck make lint target
This uses scanelf (from pax-utils) to check for any issues with the
binaries. It currently checks for executable stacks and textrels.
The checks are in a script so can be extended easily in the future for
more checks.

Executable stacks and textrels are frequently caused by issues in asm
files and lead to security and perf problems.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jason Zaman <jason@perfinion.com>
Closes #5338
2016-10-28 16:10:00 -07:00
Marcel Huber
af322debaa Add icp kernel module to dkms build
Added new section to build icp module.

Reviewed by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Tom Caputi <tcaputi@datto.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #5232 
Closes #5234
2016-10-06 10:31:42 -07:00
Brian Behlendorf
5cc78dc812 Merge OpenZFS 4185
OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R

Reviewed-by: Chunwei Chen <david.chen@osnexus.com>
Reviewed-by: Tom Caputi <tcaputi@datto.com>
Reviewed-by: David Quigley <david.quigley@intel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #4760
2016-10-04 11:20:38 -07:00
Gvozden Neskovic
0c313d2f74 zloop: check if core file is generated by zdb
Run `gdb` core file inspection with correct program.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Closes #5215
2016-10-03 15:42:13 -07:00
Tony Hutter
3c67d83a8a OpenZFS 4185 - add new cryptographic checksums to ZFS: SHA-512, Skein, Edon-R
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Saso Kiselkov <saso.kiselkov@nexenta.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Garrett D'Amore <garrett@damore.org>
Ported by: Tony Hutter <hutter2@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/4185
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/45818ee

Porting Notes:
This code is ported on top of the Illumos Crypto Framework code:

    b5e030c8db

The list of porting changes includes:

- Copied module/icp/include/sha2/sha2.h directly from illumos

- Removed from module/icp/algs/sha2/sha2.c:
	#pragma inline(SHA256Init, SHA384Init, SHA512Init)

- Added 'ctx' to lib/libzfs/libzfs_sendrecv.c:zio_checksum_SHA256() since
  it now takes in an extra parameter.

- Added CTASSERT() to assert.h from for module/zfs/edonr_zfs.c

- Added skein & edonr to libicp/Makefile.am

- Added sha512.S.  It was generated from sha512-x86_64.pl in Illumos.

- Updated ztest.c with new fletcher_4_*() args; used NULL for new CTX argument.

- In icp/algs/edonr/edonr_byteorder.h, Removed the #if defined(__linux) section
  to not #include the non-existant endian.h.

- In skein_test.c, renane NULL to 0 in "no test vector" array entries to get
  around a compiler warning.

- Fixup test files:
	- Rename <sys/varargs.h> -> <varargs.h>, <strings.h> -> <string.h>,
	- Remove <note.h> and define NOTE() as NOP.
	- Define u_longlong_t
	- Rename "#!/usr/bin/ksh" -> "#!/bin/ksh -p"
	- Rename NULL to 0 in "no test vector" array entries to get around a
	  compiler warning.
	- Remove "for isa in $($ISAINFO); do" stuff
	- Add/update Makefiles
	- Add some userspace headers like stdio.h/stdlib.h in places of
	  sys/types.h.

- EXPORT_SYMBOL *_Init/*_Update/*_Final... routines in ICP modules.

- Update scripts/zfs2zol-patch.sed

- include <sys/sha2.h> in sha2_impl.h

- Add sha2.h to include/sys/Makefile.am

- Add skein and edonr dirs to icp Makefile

- Add new checksums to zpool_get.cfg

- Move checksum switch block from zfs_secpolicy_setprop() to
  zfs_check_settable()

- Fix -Wuninitialized error in edonr_byteorder.h on PPC

- Fix stack frame size errors on ARM32
  	- Don't unroll loops in Skein on 32-bit to save stack space
  	- Add memory barriers in sha2.c on 32-bit to save stack space

- Add filetest_001_pos.ksh checksum sanity test

- Add option to write psudorandom data in file_write utility
2016-10-03 14:51:15 -07:00
Matthew Ahrens
ec009855c4 Add a script to change file names when upstreaming to OpenZFS/illumos
Add a script to change file names when upstreaming to OpenZFS/illumos.

Reviewed-by: Reviewed by: Prashanth Sreenivasa <prashksp@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Ahrens <mahrens@delphix.com>
Closes #5178
2016-09-29 21:01:50 -07:00
slashdd
792517389f Change /etc/mtab to /proc/self/mounts
Fix misleading error message:

 "The /dev/zfs device is missing and must be created.", if /etc/mtab is missing.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Eric Desrochers <eric.desrochers@canonical.com>
Closes #4680 
Closes #5029
2016-09-20 10:07:58 -07:00
John Wren Kennedy
679d73e98b OpenZFS - Performance regression suite for zfstest
Author: John Wren Kennedy <john.kennedy@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Don Brady <don.brady@intel.com>
Reviewed by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: David Quigley <david.quigley@intel.com>
Approved by: Richard Lowe <richlowe@richlowe.net>
Ported-by: Don Brady <don.brady@intel.com>

OpenZFS-issue: https://www.illumos.org/issues/6950
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dcbf3bd6
Delphix-commit: https://github.com/delphix/delphix-os/commit/978ed49
Closes #4929

ZFS Test Suite Performance Regression Tests

This was pulled into OpenZFS via the compressed arc featureand was
separated out in zfsonlinux as a separate pull request from PR-4768.
It originally came in as QA-4903 in Delphix-OS from John Kennedy.

Expected Usage:

$ DISKS="sdb sdc sdd" zfs-tests.sh -r perf-regression.run

Porting Notes:
1. Added assertions in the setup script to make sure required tools
   (fio, mpstat, ...) are present.
2. For the config.json generation in perf.shlib used arcstats and
    other binaries instead of dtrace to query the values.
3. For the perf data collection:
   - use "zpool iostat -lpvyL" instead of the io.d dtrace script
    (currently not collecting zfs_read/write latency stats)
   - mpstat and iostat take different arguments
   - prefetch_io.sh is a placeholder that uses arcstats instead of
     dtrace
4. Build machines require fio, mdadm and sysstat pakage (YMMV).

Future Work:
   - Need a way to measure zfs_read and zfs_write latencies per pool.
   - Need tools to takes two sets of output and display/graph the
     differences
   - Bring over additional regression tests from Delphix
2016-09-08 16:18:28 -07:00
Don Brady
d02ca37979 Bring over illumos ZFS FMA logic -- phase 1
This first phase brings over the ZFS SLM module, zfs_mod.c, to handle
auto operations in response to disk events. Disk event monitoring is
provided from libudev and generates the expected payload schema for
zfs_mod. This work leverages the recently added devid and phys_path
strings in the vdev label.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@intel.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #4673
2016-09-01 11:39:45 -07:00