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| author | Igor Pylypiv <ipylypiv@google.com> | 2025-01-31 21:44:07 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-02-04 01:10:15 +0300 |
| commit | 9ff7c383b8ac0c482a1da7989f703406d78445c6 (patch) | |
| tree | 6e6948a9c114ce483dd5d83f0453c52ce05cce9e /tools/perf/scripts/python/task-analyzer.py | |
| parent | 5363ee9d110e139584c2d92a0b640bc210588506 (diff) | |
| download | linux-9ff7c383b8ac0c482a1da7989f703406d78445c6.tar.xz | |
scsi: core: Do not retry I/Os during depopulation
Fail I/Os instead of retry to prevent user space processes from being
blocked on the I/O completion for several minutes.
Retrying I/Os during "depopulation in progress" or "depopulation restore in
progress" results in a continuous retry loop until the depopulation
completes or until the I/O retry loop is aborted due to a timeout by the
scsi_cmd_runtime_exceeced().
Depopulation is slow and can take 24+ hours to complete on 20+ TB HDDs.
Most I/Os in the depopulation retry loop end up taking several minutes
before returning the failure to user space.
Cc: stable@vger.kernel.org # 4.18.x: 2bbeb8d scsi: core: Handle depopulation and restoration in progress
Cc: stable@vger.kernel.org # 4.18.x
Fixes: e37c7d9a0341 ("scsi: core: sanitize++ in progress")
Signed-off-by: Igor Pylypiv <ipylypiv@google.com>
Link: https://lore.kernel.org/r/20250131184408.859579-1-ipylypiv@google.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions