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authorNick Piggin <npiggin@suse.de>2008-04-29 14:48:33 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-04-29 14:48:33 +0200
commit75ad23bc0fcb4f992a5d06982bf0857ab1738e9e (patch)
tree8668ef63b1f420252ae41aed9e13737d49fd8054 /drivers/scsi/scsi_transport_sas.c
parentblock: add dma alignment and padding support to blk_rq_map_kern (diff)
downloadlinux-dev-75ad23bc0fcb4f992a5d06982bf0857ab1738e9e.tar.xz
linux-dev-75ad23bc0fcb4f992a5d06982bf0857ab1738e9e.zip
block: make queue flags non-atomic
We can save some atomic ops in the IO path, if we clearly define the rules of how to modify the queue flags. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to '')
-rw-r--r--drivers/scsi/scsi_transport_sas.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c
index 7899e3dda9bf..f4461d35ffb9 100644
--- a/drivers/scsi/scsi_transport_sas.c
+++ b/drivers/scsi/scsi_transport_sas.c
@@ -248,8 +248,7 @@ static int sas_bsg_initialize(struct Scsi_Host *shost, struct sas_rphy *rphy)
else
q->queuedata = shost;
- set_bit(QUEUE_FLAG_BIDI, &q->queue_flags);
-
+ queue_flag_set_unlocked(QUEUE_FLAG_BIDI, q);
return 0;
}