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From: Hannes Reinecke <hare@suse.de>
To: James Bottomley <jbottomley@parallels.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	Bart vn Assche <bvanassche@acm.org>,
	Ewan Milne <emilne@redhat.com>,
	linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH 1/2] scsi_error: set DID_TIME_OUT correctly
Date: Fri, 13 Jun 2014 14:01:45 +0200	[thread overview]
Message-ID: <1402660906-74661-2-git-send-email-hare@suse.de> (raw)
In-Reply-To: <1402660906-74661-1-git-send-email-hare@suse.de>

Any callbacks in scsi_timeout_out() might return BLK_EH_RESET_TIMER,
in which case we should leave the result alone and not set
DID_TIME_OUT, as the command didn't actually timeout.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/scsi/scsi_error.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 47a1ffc..ff176a6 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -291,11 +291,11 @@ enum blk_eh_timer_return scsi_times_out(struct request *req)
 		if (scsi_abort_command(scmd) == SUCCESS)
 			return BLK_EH_NOT_HANDLED;
 
-	scmd->result |= DID_TIME_OUT << 16;
-
-	if (unlikely(rtn == BLK_EH_NOT_HANDLED &&
-		     !scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD)))
-		rtn = BLK_EH_HANDLED;
+	if (unlikely(rtn == BLK_EH_NOT_HANDLED)) {
+		scmd->result |= DID_TIME_OUT << 16;
+		if (!scsi_eh_scmd_add(scmd, SCSI_EH_CANCEL_CMD))
+			rtn = BLK_EH_HANDLED;
+	}
 
 	return rtn;
 }
-- 
1.7.12.4


  reply	other threads:[~2014-06-13 12:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-13 12:01 [PATCH 0/2] scsi command timeout fixes Hannes Reinecke
2014-06-13 12:01 ` Hannes Reinecke [this message]
2014-06-13 14:32   ` [PATCH 1/2] scsi_error: set DID_TIME_OUT correctly Ewan Milne
2014-06-13 16:25     ` Christoph Hellwig
2014-06-13 12:01 ` [PATCH 2/2] scsi: Do not complete timed-out command Hannes Reinecke
2014-06-13 16:29   ` Christoph Hellwig
2014-06-16 18:23   ` Ewan Milne
2014-06-17  5:53     ` Hannes Reinecke
2014-06-19 14:43       ` Ewan Milne
2014-06-13 16:52 ` [PATCH 0/2] scsi command timeout fixes James Bottomley
2014-06-13 17:16   ` hch

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