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authorHannes Reinecke <hare@suse.de>2016-02-19 09:17:12 +0100
committerMartin K. Petersen <martin.petersen@oracle.com>2016-02-24 03:27:02 +0100
commit851cde9909dd8b6fb90fab7f4e815c8f86c85a0d (patch)
tree9cf6e3e2a264143c04ca1a3ba9553383e7290402 /drivers/scsi/device_handler
parentscsi_dh_alua: Allow workqueue to run synchronously (diff)
downloadlinux-851cde9909dd8b6fb90fab7f4e815c8f86c85a0d.tar.xz
linux-851cde9909dd8b6fb90fab7f4e815c8f86c85a0d.zip
scsi_dh_alua: Add new blacklist flag 'BLIST_SYNC_ALUA'
Add a new blacklist flag BLIST_SYNC_ALUA to instruct the alua device handler to use synchronous command submission for ALUA commands. Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index a3cb06955adc..fbbe85e750a8 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -366,6 +366,8 @@ static int alua_check_vpd(struct scsi_device *sdev, struct alua_dh_data *h,
/* port group has changed. Update to new port group */
rcu_assign_pointer(h->pg, pg);
}
+ if (sdev->synchronous_alua)
+ pg->flags |= ALUA_SYNC_STPG;
alua_rtpg_queue(h->pg, sdev, NULL);
spin_unlock(&h->pg_lock);