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Ryan Moeller cda6fdd500 Intentionally allow ZFS_READONLY in zfs_write 
ZFS_READONLY represents the "DOS R/O" attribute.
When that flag is set, we should behave as if write access
were not granted by anything in the ACL.  In particular:
We _must_ allow writes after opening the file r/w, then
setting the DOS R/O attribute, and writing some more.
(Similar to how you can write after fchmod(fd, 0444).)

Restore these semantics which were lost on FreeBSD when refactoring
zfs_write.  To my knowledge Linux does not actually expose this flag,
but we'll need it to eventually so I've added the supporting checks.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11693
2021-03-08 09:07:29 -08:00
.github CI: add ubuntu-* functional tests runner 2021-02-05 11:31:38 -08:00
cmd Suppress cppcheck invalidSyntax warninigs 2021-03-08 09:07:25 -08:00
config Linux 5.12 compat: replace bio_*_io_acct with disk_*_io_acct 2021-03-05 12:57:54 -08:00
contrib dracut: Fix race condition between load-key and import 2021-02-05 11:40:33 -08:00
etc zfs-import-{cache,scan}: change condition to FileNotEmpty 2021-02-05 11:42:40 -08:00
include Suppress cppcheck invalidSyntax warninigs 2021-03-08 09:07:25 -08:00
lib Don't bomb out when using keylocation=file:// 2021-03-05 12:59:07 -08:00
man Linux: increase max nvlist_src size 2021-03-05 12:54:57 -08:00
module Intentionally allow ZFS_READONLY in zfs_write 2021-03-08 09:07:29 -08:00
rpm Install zgenhostid to sbindir 2021-01-23 15:47:06 -08:00
scripts DKMS: Disable weak modules 2020-12-23 14:34:59 -08:00
tests send_iterate_snap : doall send without fromsnap 2021-03-05 12:54:39 -08:00
udev Centralize variable substitution 2020-07-14 17:33:44 -07:00
.editorconfig Add an .editorconfig; document git whitespace settings 2020-01-27 13:32:52 -08:00
.gitignore Add FreeBSD support to OpenZFS 2020-04-14 11:36:28 -07:00
.gitmodules Add zimport.sh compatibility test script 2014-02-21 12:10:31 -08:00
AUTHORS Add zstd support to zfs 2020-08-20 10:30:06 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
CODE_OF_CONDUCT.md Replace ZFS on Linux references with OpenZFS 2020-10-16 13:01:24 -07:00
configure.ac send_iterate_snap : doall send without fromsnap 2021-03-05 12:54:39 -08:00
copy-builtin Replace ZFS on Linux references with OpenZFS 2020-10-16 13:01:24 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
cppcheck-suppressions.txt Import ZStandard v1.4.5 2020-08-20 10:30:06 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
Makefile.am dracut: use /bin/sh instead of bash as the intepreter 2020-11-30 09:44:02 -08:00
META Linux 5.11 compat: META 2021-03-05 12:48:08 -08:00
NEWS Fix NEWS file 2020-08-27 16:07:01 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md docs: update README's installation link 2020-10-16 13:00:13 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
zfs.release.in Move zfs.release generation to configure step 2012-07-12 12:22:51 -07:00

README.md

img

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.

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Official Resources

Installation

Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.

Contribute & Develop

We have a separate document with contribution guidelines.

We have a Code of Conduct.

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.