The function scsi_remove_host() may get invoked concurrently with
scsi_request_fn(). Kill those I/O requests for which processing
starts after scsi_remove_host() has been invoked. This makes
device removal a little quicker by avoiding that such SCSI
commands time out.
Signed-off-by: Bart Van Assche <bvanass...@acm.org>
Cc: James Bottomley <jbottom...@parallels.com>
Cc: Mike Christie <micha...@cs.wisc.edu>
Cc: Hannes Reinecke <h...@suse.de>
Cc: Tejun Heo <t...@kernel.org>
---
drivers/scsi/scsi_lib.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index f3d6e0d..5fe25b3 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1549,7 +1549,8 @@ static void scsi_request_fn(struct request_queue *q)
if (!req || !scsi_dev_queue_ready(q, sdev))
break;
- if (unlikely(!scsi_device_online(sdev))) {
+ if (unlikely(!scsi_device_online(sdev) ||
+ !scsi_host_scan_allowed(shost))) {
sdev_printk(KERN_ERR, sdev,
"rejecting I/O to offline device\n");
scsi_kill_request(req, q);
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
