mirror_zfs/lib
Paul Dagnelie 086105f4c4
Cause zpool scan resume commands to get logged in history
Currently, commands that resume a scrub/errorscrub from a paused state
don't get logged in the pool history. This is because resumes actually
return ECANCELED, instead of 0. This causes the tsd code in the common
ioctl logic to not think the ioctl succeeded, which causes the
log_history ioctl to fail with EPERM. However, for resuming a scrub from
a paused state, ECANCELED is success.

There are two options for how to deal with this. The first is the one
that I implemented here; I can't find a good reason for dmu_scan to
return ECANCELED on resume instead of 0, so let's just not. The only
place we check for the ECANCELED value is in zpool_scan, where we just
convert it back to zero.  However, I am aware that this is changing an
ioctl interface, which I believe is a breaking change. I don't think
it's an important change, but maybe there is someone who relies on it.

The other option that could be implemented is to either allow ECANCELED
specifically from dsl_scan in the common ioctl code, or add a generic
facility to the common ioctl code that allows each command to specify
whether or not success happened, regardless of the return values. I am
open to feedback on which option people think would be better.

Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes #17301
2025-05-16 13:19:04 -04:00
..
libavl cppcheck: explicitly exclude kernel code from userspace checks 2022-05-10 10:20:55 -07:00
libefi SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
libicp icp: remove skein module 2024-05-31 15:13:39 -07:00
libnvpair nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
libshare SPDX: license tags: BSD-2-Clause 2025-03-13 17:56:46 -07:00
libspl Support using llvm-libunwind 2025-04-24 13:58:48 -04:00
libtpool SPDX: license tags: CDDL-1.0 2025-03-13 17:56:27 -07:00
libunicode module: unicode: remove unused uconv.c 2024-11-01 12:12:13 -07:00
libuutil nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
libzdb Provide macros for setting and getting blkptr birth times 2024-03-25 15:01:54 -07:00
libzfs Cause zpool scan resume commands to get logged in history 2025-05-16 13:19:04 -04:00
libzfs_core nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
libzfsbootenv nvlist: Add nvlist_snprintf() and zfs_dbgmsg_nvlist() 2025-04-18 09:22:16 -04:00
libzpool Wire O_DIRECT also to Uncached I/O (#17218) 2025-05-13 14:26:55 -07:00
libzstd libzstd: also build with LIBZPOOL_CPPFLAGS 2024-09-09 14:13:27 -07:00
libzutil SPDX: license tags: BSD-3-Clause 2025-03-13 17:56:50 -07:00
Makefile.am libzdb: Initial breakout of libzdb 2024-02-05 10:00:41 -08:00