mirror_zfs/include
Brian Behlendorf 6df43169b3
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 09:16:35 -08:00
..
os Handle aarch64 defines seperate from arm 2022-03-07 17:49:34 -08:00
sys Fix ENOSPC when unlinking multiple files from full pool 2022-03-08 09:16:35 -08:00
.gitignore OpenZFS restructuring - move platform specific sources 2019-09-06 11:26:26 -07:00
cityhash.h libzfs: convert to -fvisibility=hidden 2021-06-03 13:17:55 -07:00
libnvpair.h lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden 2021-06-09 17:04:32 -07:00
libuutil_common.h Support custom build directories and move includes 2010-09-08 12:38:56 -07:00
libuutil_impl.h Replace /*PRINTFLIKEn*/ with attribute(printf) 2021-07-26 12:07:15 -07:00
libuutil.h Use _Noreturn (C11; GNU89) properly 2022-03-04 16:25:22 -08:00
libzfs_core.h Vdev Properties Feature 2021-11-30 07:46:25 -07:00
libzfs.h libzfs: const correctness 2022-02-01 16:56:18 -08:00
libzfsbootenv.h lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden 2021-06-09 17:04:32 -07:00
libzutil.h Simplify and document OpenZFS library dependencies 2021-10-07 11:31:26 -06:00
Makefile.am libzfs: don't distribute libzfs_impl.h 2021-06-03 13:17:35 -07:00
thread_pool.h lib{efi,avl,share,tpool,zfs_core,zfsbootenv,zutil}: -fvisibility=hidden 2021-06-09 17:04:32 -07:00
zfeature_common.h log xattr=sa create/remove/update to ZIL 2022-02-22 13:06:43 -08:00
zfs_comutil.h module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
zfs_deleg.h module/*.ko: prune .data, global .rodata 2022-01-14 15:37:55 -08:00
zfs_fletcher.h Add --enable-asan and --enable-ubsan switches 2022-02-03 14:35:38 -08:00
zfs_namecheck.h libzfs: convert to -fvisibility=hidden 2021-06-03 13:17:55 -07:00
zfs_prop.h Flex non-pretty-printed properties and raw-/pretty-print remaining ones 2022-03-04 12:08:33 -08:00