mirror_zfs/module
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
..
avl Fix various typos 2021-04-07 13:27:11 -07:00
icp Use fallthrough macro 2021-11-02 09:50:30 -07:00
lua Use fallthrough macro 2021-11-02 09:50:30 -07:00
nvpair Update checkstyle workflow env to ubuntu-20.04 2021-12-08 13:27:56 -08:00
os zfs: Fix a deadlock between page busy and the teardown lock 2022-03-04 15:37:41 -08:00
spl Cleanup linux module kbuild files 2020-06-10 09:24:15 -07:00
unicode Update checkstyle workflow env to ubuntu-20.04 2021-12-08 13:27:56 -08:00
zcommon Linux 5.16 compat: don't use XSTATE_XSAVE to save FPU state 2022-02-16 17:58:55 -08:00
zfs Fix ENOSPC when unlinking multiple files from full pool 2022-03-08 11:46:03 -08:00
zstd Linux 5.16: Resolve ZSTD_isError symbol collision in Linux kernel 2021-12-07 13:14:24 -08:00
.gitignore Cleanup linux module kbuild files 2020-06-10 09:24:15 -07:00
Kbuild.in Add zstd support to zfs 2020-08-20 10:30:06 -07:00
Makefile.bsd Restore FreeBSD resource usage accounting 2021-02-19 22:34:33 -08:00
Makefile.in Add support for $KERNEL_{CC,LD,LLVM} variables 2022-02-16 17:58:55 -08:00