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>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index f7f163557aa0..d3a25b027ff9 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -546,7 +546,7 @@ static void loop_unplug(struct request_queue *q)
 {
         struct loop_device *lo = q->queuedata;
 
-        clear_bit(QUEUE_FLAG_PLUGGED, &q->queue_flags);
+        queue_flag_clear_unlocked(QUEUE_FLAG_PLUGGED, q);
         blk_run_address_space(lo->lo_backing_file->f_mapping);
 }
 
diff --git a/drivers/block/ub.c b/drivers/block/ub.c
index 27bfe72aab59..e322cce8c12d 100644
--- a/drivers/block/ub.c
+++ b/drivers/block/ub.c
@@ -2399,7 +2399,7 @@ static void ub_disconnect(struct usb_interface *intf)
                 del_gendisk(lun->disk);
                 /*
                  * I wish I could do:
-                 *    set_bit(QUEUE_FLAG_DEAD, &q->queue_flags);
+                 *    queue_flag_set(QUEUE_FLAG_DEAD, q);
                  * As it is, we rely on our internal poisoning and let
                  * the upper levels to spin furiously failing all the I/O.
                  */