It's common to get a UA when doing PR commands. It could be due to a target restarting, transport level relogin or other PR commands like a release causing it. The upper layers don't get the sense and in some cases have no idea if it's a SCSI device, so this has the sd layer retry. Signed-off-by: Mike Christie <michael.christie@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- drivers/scsi/sd.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 48b727b2bf1d..87450e14c419 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1754,8 +1754,19 @@ static int sd_pr_in_command(struct block_device *bdev, u8 sa, struct scsi_device *sdev = sdkp->device; struct scsi_sense_hdr sshdr; u8 cmd[10] = { PERSISTENT_RESERVE_IN, sa }; + struct scsi_failure failures[] = { + { + .sense = UNIT_ATTENTION, + .asc = SCMD_FAILURE_ASC_ANY, + .ascq = SCMD_FAILURE_ASCQ_ANY, + .allowed = 5, + .result = SAM_STAT_CHECK_CONDITION, + }, + {}, + }; const struct scsi_exec_args exec_args = { .sshdr = &sshdr, + .failures = failures, }; int result; @@ -1842,8 +1853,19 @@ static int sd_pr_out_command(struct block_device *bdev, u8 sa, u64 key, struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk); struct scsi_device *sdev = sdkp->device; struct scsi_sense_hdr sshdr; + struct scsi_failure failures[] = { + { + .sense = UNIT_ATTENTION, + .asc = SCMD_FAILURE_ASC_ANY, + .ascq = SCMD_FAILURE_ASCQ_ANY, + .allowed = 5, + .result = SAM_STAT_CHECK_CONDITION, + }, + {}, + }; const struct scsi_exec_args exec_args = { .sshdr = &sshdr, + .failures = failures, }; int result; u8 cmd[16] = { 0, }; -- 2.34.1