Add a 'BLK_EH_SCHEDULED' return code for blk-timeout to indicate
that a delayed error recovery has been initiated.
Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/scsi/scsi_error.c | 3 +++
include/linux/blkdev.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index c1b05a8..bef6799e 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -145,6 +145,9 @@ enum blk_eh_timer_return scsi_times_out(struct request *req)
rtn = host->hostt->eh_timed_out(scmd);
scmd->result |= DID_TIME_OUT << 16;
+ /* Check for delayed EH scheduling */
+ if (rtn == BLK_EH_SCHEDULED)
+ return BLK_EH_NOT_HANDLED;
if (unlikely(rtn == BLK_EH_NOT_HANDLED &&
!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD)))
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 78feda9..0a38211 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -238,6 +238,7 @@ enum blk_eh_timer_return {
BLK_EH_NOT_HANDLED,
BLK_EH_HANDLED,
BLK_EH_RESET_TIMER,
+ BLK_EH_SCHEDULED,
};
typedef enum blk_eh_timer_return (rq_timed_out_fn)(struct request *);
--
1.7.12.4
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