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OpenZFS on Linux and FreeBSD
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Matthew Ahrens 3a92552f75
Fix error handling of vdev_top_zap 
In `vdev_load()`, we look up several entries in the `vdev_top_zap`
object.  In most cases, if we encounter an i/o error, it will be
returned to the caller.  However, when handling
`VDEV_TOP_ZAP_ALLOCATION_BIAS`, if we get an i/o error, we may continue
on, which in theory could cause us to not realize that a vdev should be
used only for `special` allocations.

In practice, if we encountered an i/o error while looking for
`VDEV_TOP_ZAP_ALLOCATION_BIAS` in the `vdev_top_zap`, we'd also get an
i/o error while looking for other entries in the same object, and thus
the zpool open/import would fail.  Therefore the impact of this problem
is negligible.

This commit adds error handling for i/o errors while accessing the
`vdev_top_zap`, so that we aren't relying on unrelated code to fail for
us.

Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #10637
 		2020-07-29 17:04:34 -07:00
.github OpenZFSify CONTRIBUTING.md 2020-07-22 11:09:04 -07:00
cmd Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
config Prefix zfs internal endian checks with _ZFS 2020-07-28 13:02:49 -07:00
contrib Centralize variable substitution 2020-07-14 17:33:44 -07:00
etc Verify zfs module loaded before starting services 2020-07-29 16:52:18 -07:00
include Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
lib Rename refcount.h to zfs_refcount.h 2020-07-29 16:35:33 -07:00
man Limit dbuf cache sizes based only on ARC target size by default 2020-07-24 20:38:48 -07:00
module Fix error handling of vdev_top_zap 2020-07-29 17:04:34 -07:00
rpm Disable shebang mangling on input files 2020-07-19 10:19:08 -07:00
scripts Add zfs_gitrev.h to the distributed sources 2020-07-22 10:00:40 -07:00
tests Fix lua stack overflow on recursive call to gsub() 2020-07-27 16:11:47 -07:00
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
.travis.yml Add .travis.yml 2017-11-13 09:18:18 -08:00
AUTHORS Update build system and packaging 2018-05-29 16:00:33 -07:00
CODE_OF_CONDUCT.md Add CODE_OF_CONDUCT.md 2019-04-30 10:58:45 -07:00
COPYRIGHT Fix typos 2020-06-09 21:24:09 -07:00
LICENSE Update build system and packaging 2018-05-29 16:00:33 -07:00
META Linux 5.7 compat: blk_alloc_queue() 2020-04-09 09:16:46 -07:00
Makefile.am Add zfs_gitrev.h to the distributed sources 2020-07-22 10:00:40 -07:00
NEWS Add NEWS file 2018-09-18 12:03:47 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md Update wiki links with new address 2020-06-03 19:46:31 -07:00
TEST Remove CI builder customization from TEST 2020-03-16 10:46:03 -07:00
autogen.sh Cause autogen.sh to fail if autoreconf fails 2018-07-06 09:27:37 -07:00
configure.ac Clean up lib dependencies 2020-07-10 14:26:00 -07:00
copy-builtin Move zfs_gitrev.h to build directory 2020-06-24 18:19:28 -07:00
cppcheck-suppressions.txt Move cppcheck suppressions out of .github 2020-06-27 17:40:15 -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 Linux distribution can be found at the ZoL Site.

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.