diff options
Diffstat (limited to 'block/ll_rw_blk.c')
| -rw-r--r-- | block/ll_rw_blk.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 8e136450abc2..8e27d0ab0d7c 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -26,7 +26,6 @@ #include <linux/slab.h> #include <linux/swap.h> #include <linux/writeback.h> -#include <linux/blkdev.h> #include <linux/interrupt.h> #include <linux/cpu.h> @@ -2748,30 +2747,6 @@ static inline int attempt_front_merge(request_queue_t *q, struct request *rq) return 0; } -/** - * blk_attempt_remerge - attempt to remerge active head with next request - * @q: The &request_queue_t belonging to the device - * @rq: The head request (usually) - * - * Description: - * For head-active devices, the queue can easily be unplugged so quickly - * that proper merging is not done on the front request. This may hurt - * performance greatly for some devices. The block layer cannot safely - * do merging on that first request for these queues, but the driver can - * call this function and make it happen any way. Only the driver knows - * when it is safe to do so. - **/ -void blk_attempt_remerge(request_queue_t *q, struct request *rq) -{ - unsigned long flags; - - spin_lock_irqsave(q->queue_lock, flags); - attempt_back_merge(q, rq); - spin_unlock_irqrestore(q->queue_lock, flags); -} - -EXPORT_SYMBOL(blk_attempt_remerge); - static void init_request_from_bio(struct request *req, struct bio *bio) { req->flags |= REQ_CMD; |