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vdev probe to slow disk can stall mmp write checker

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Simplify vdev probes in the zio_vdev_io_done context to
avoid holding the spa config lock for a long duration.

Also allow zpool clear if no evidence of another host
is using the pool.

Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Closes #15839
This commit is contained in:
Don Brady
2024-04-29 15:35:53 -06:00
committed by GitHub
parent b28461b7c6
commit c3f2f1aa2d
16 changed files with 242 additions and 52 deletions
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module/zfs/zfs_ioctl.c
+6 -3
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@@ -5823,10 +5823,13 @@ zfs_ioc_clear(zfs_cmd_t *zc)
/*
* If multihost is enabled, resuming I/O is unsafe as another
* host may have imported the pool.
* host may have imported the pool. Check for remote activity.
*/
if (spa_multihost(spa) && spa_suspended(spa))
return (SET_ERROR(EINVAL));
if (spa_multihost(spa) && spa_suspended(spa) &&
spa_mmp_remote_host_activity(spa)) {
spa_close(spa, FTAG);
return (SET_ERROR(EREMOTEIO));
}
spa_vdev_state_enter(spa, SCL_NONE);