block: Introduce blk_queue_flag_{set,clear,test_and_{set,clear}}()
Introduce functions that modify the queue flags and that protect
these modifications with the request queue lock. Except for moving
one wake_up_all() call from inside to outside a critical section,
this patch does not change any functionality.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index a05e367..34a5525 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -57,12 +57,10 @@
char *p = (char *) buf;
val = simple_strtoul(p, &p, 10);
- spin_lock_irq(q->queue_lock);
if (val)
- queue_flag_set(QUEUE_FLAG_FAIL_IO, q);
+ blk_queue_flag_set(QUEUE_FLAG_FAIL_IO, q);
else
- queue_flag_clear(QUEUE_FLAG_FAIL_IO, q);
- spin_unlock_irq(q->queue_lock);
+ blk_queue_flag_clear(QUEUE_FLAG_FAIL_IO, q);
}
return count;