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Brian Behlendorf 145af480d3 Fix ENOSPC when unlinking multiple files from full pool 
When unlinking multiple files from a pool at 100% capacity, it was
possible for ENOSPC to be returned after the first unlink.  e.g.

    rm -f /mnt/fs/test1.0.0 /mnt/fs/test1.1.0 /mnt/fs/test1.2.0
    rm: cannot remove '/mnt/fs/test1.1.0': No space left on device
    rm: cannot remove '/mnt/fs/test1.2.0': No space left on device

After waiting for the pending deferred frees from the first unlink to
be processed the remaining files can then be unlinked.  This is caused
by the quota limit in dsl_dir_tempreserve_impl() being temporarily
decreased to the allocatable pool capacity less any deferred free
space.

This is resolved using the existing mechanism of returning ERESTART
when over quota as long as we know enough space will shortly be
available after processing the pending deferred frees.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ryan Moeller <freqlabs@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13172
2022-03-08 11:46:03 -08:00
.github libzfs: add keylocation=https://, backed by fetch(3) or libcurl 2022-02-16 17:58:37 -08:00
cmd Fix erroneous zstreamdump warning 2022-03-01 09:45:48 -08:00
config Linux 5.11 compat: x86 SIMD: fix kernel_fpu_{begin,end}() detection 2022-02-24 11:33:02 -08:00
contrib libfetch: unquote @LIBFETCH_SONAME@ subst 2022-02-16 17:58:55 -08:00
etc Remove basename(1). Clean up/shorten some coreutils pipelines 2022-02-16 17:58:55 -08:00
include Fix ENOSPC when unlinking multiple files from full pool 2022-03-08 11:46:03 -08:00
lib libzfs: add keylocation=https://, backed by fetch(3) or libcurl 2022-02-16 17:58:37 -08:00
man zfs-receive.8: properly unlight = in option setting 2022-02-16 17:58:56 -08:00
module Fix ENOSPC when unlinking multiple files from full pool 2022-03-08 11:46:03 -08:00
rpm Propagate KERNEL_* to *.spec 2022-02-16 17:58:55 -08:00
scripts Fix FreeBSD reporting on reruns 2022-02-15 21:52:49 -08:00
tests Fix ENOSPC when unlinking multiple files from full pool 2022-03-08 11:46:03 -08:00
udev Udev rules: use match (==) rather than assign (=) for PROGRAM 2021-09-14 12:23:10 -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 .gitmodules: link to openzfs github repository 2021-04-14 13:23:08 -07:00
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 2020-10-08 20:10:13 -07:00
configure.ac Linux 5.16 compat: don't use XSTATE_XSAVE to save FPU state 2022-02-16 17:58:55 -08:00
copy-builtin copy-builtin: posix conformance 2021-05-10 12:18:54 -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
Makefile.am Upgrade to libabigail 2.0.0 2021-11-05 07:59:40 -07:00
META Tag zfs-2.1.2 2021-12-13 15:00:39 -08:00
NEWS Fix NEWS file 2020-08-26 21:44:41 -07:00
NOTICE Update build system and packaging 2018-05-29 16:00:33 -07:00
README.md README: Update OpenZFS website url 2022-02-16 17:58:55 -08:00
RELEASES.md Add RELEASES.md file 2021-04-07 13:26:58 -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 any supported branches and releases starting from 12.2-RELEASE.