zfs/cmd/zpool
Allan Jude dc95911d21
zfs list: Allow more fields in ZFS_ITER_SIMPLE mode
If the fields to be listed and sorted by are constrained to those
populated by dsl_dataset_fast_stat(), then zfs list is much faster,
as it does not need to open each objset and reads its properties.

A previous optimization by Pawel Dawidek
(0cee24064a) took advantage
of this to make listing snapshot names sorted only by name much faster.

However, it was limited to `-o name -s name`, this work extends this
optimization to work with:
  - name
  - guid
  - createtxg
  - numclones
  - inconsistent
  - redacted
  - origin
and could be further extended to any other properties supported by
dsl_dataset_fast_stat() or similar, that do not require extra locking
or reading from disk.

This was committed before (9a9e2e343d),
but was reverted due to a regression when used with an older kernel.

If the kernel does not populate zc->zc_objset_stats, we now fallback
to getting the properties via the slower interface, to avoid problems
with newer userland and older kernels.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Closes #14110
2022-12-13 17:27:54 -08:00
..
compatibility.d Add compatibility file sets (ZoL 0.6.1, 0.6.4, OpenZFS 2.1) 2021-03-31 09:40:25 -07:00
os Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool.d Workaround broken VDEV_UPATH 2022-05-10 10:14:07 -07:00
Makefile.am Replace EXTRA_DIST with dist_noinst_DATA 2022-05-26 09:24:50 -07:00
zpool_iter.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_main.c zfs list: Allow more fields in ZFS_ITER_SIMPLE mode 2022-12-13 17:27:54 -08:00
zpool_util.c Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_util.h Replace dead opensolaris.org license link 2022-07-11 14:16:13 -07:00
zpool_vdev.c zpool: fix redundancy check after vdev removal 2022-08-04 17:02:57 -07:00