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scsi: core: Do not retry I/Os during depopulation

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[ Upstream commit 9ff7c383b8ac0c482a1da7989f703406d78445c6 ]

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: e37c7d9a03 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Igor Pylypiv
2025-01-31 10:44:07 -08:00
committed by Greg Kroah-Hartman
parent 79a43ee6ec
commit 4cc8b0110c
1 changed files with 7 additions and 2 deletions
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9
drivers/scsi/scsi_lib.c
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@@ -782,13 +782,18 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result)
case 0x1a: /* start stop unit in progress */
case 0x1b: /* sanitize in progress */
case 0x1d: /* configuration in progress */
case 0x24: /* depopulation in progress */
case 0x25: /* depopulation restore in progress */
action = ACTION_DELAYED_RETRY;
break;
case 0x0a: /* ALUA state transition */
action = ACTION_DELAYED_REPREP;
break;
/*
* Depopulation might take many hours,
* thus it is not worthwhile to retry.
*/
case 0x24: /* depopulation in progress */
case 0x25: /* depopulation restore in progress */
fallthrough;
default:
action = ACTION_FAIL;
break;