diff options
| -rw-r--r-- | block/ll_rw_blk.c | 15 | ||||
| -rw-r--r-- | drivers/scsi/scsi_lib.c | 2 | ||||
| -rw-r--r-- | include/linux/blkdev.h | 12 |
3 files changed, 12 insertions, 17 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 71a78a7e42fd..433797934bd5 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -1405,8 +1405,7 @@ static inline int ll_new_hw_segment(request_queue_t *q, return 1; } -static int ll_back_merge_fn(request_queue_t *q, struct request *req, - struct bio *bio) +int ll_back_merge_fn(request_queue_t *q, struct request *req, struct bio *bio) { unsigned short max_sectors; int len; @@ -1442,6 +1441,7 @@ static int ll_back_merge_fn(request_queue_t *q, struct request *req, return ll_new_hw_segment(q, req, bio); } +EXPORT_SYMBOL(ll_back_merge_fn); static int ll_front_merge_fn(request_queue_t *q, struct request *req, struct bio *bio) @@ -1912,9 +1912,6 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id) } q->request_fn = rfn; - q->back_merge_fn = ll_back_merge_fn; - q->front_merge_fn = ll_front_merge_fn; - q->merge_requests_fn = ll_merge_requests_fn; q->prep_rq_fn = NULL; q->unplug_fn = generic_unplug_device; q->queue_flags = (1 << QUEUE_FLAG_CLUSTER); @@ -2371,7 +2368,7 @@ static int __blk_rq_map_user(request_queue_t *q, struct request *rq, spin_lock_irq(q->queue_lock); if (!rq->bio) blk_rq_bio_prep(q, rq, bio); - else if (!q->back_merge_fn(q, rq, bio)) { + else if (!ll_back_merge_fn(q, rq, bio)) { ret = -EINVAL; spin_unlock_irq(q->queue_lock); goto unmap_bio; @@ -2820,7 +2817,7 @@ static int attempt_merge(request_queue_t *q, struct request *req, * will have updated segment counts, update sector * counts here. */ - if (!q->merge_requests_fn(q, req, next)) + if (!ll_merge_requests_fn(q, req, next)) return 0; /* @@ -2937,7 +2934,7 @@ static int __make_request(request_queue_t *q, struct bio *bio) case ELEVATOR_BACK_MERGE: BUG_ON(!rq_mergeable(req)); - if (!q->back_merge_fn(q, req, bio)) + if (!ll_back_merge_fn(q, req, bio)) break; blk_add_trace_bio(q, bio, BLK_TA_BACKMERGE); @@ -2954,7 +2951,7 @@ static int __make_request(request_queue_t *q, struct bio *bio) case ELEVATOR_FRONT_MERGE: BUG_ON(!rq_mergeable(req)); - if (!q->front_merge_fn(q, req, bio)) + if (!ll_front_merge_fn(q, req, bio)) break; blk_add_trace_bio(q, bio, BLK_TA_FRONTMERGE); diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 41a2ea32a300..f02f48a882a9 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -265,7 +265,7 @@ static int scsi_merge_bio(struct request *rq, struct bio *bio) if (!rq->bio) blk_rq_bio_prep(q, rq, bio); - else if (!q->back_merge_fn(q, rq, bio)) + else if (!ll_back_merge_fn(q, rq, bio)) return -EINVAL; else { rq->biotail->bi_next = bio; diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ea330d7b46c0..0fa33017ec02 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -331,10 +331,6 @@ struct request_pm_state #include <linux/elevator.h> -typedef int (merge_request_fn) (request_queue_t *, struct request *, - struct bio *); -typedef int (merge_requests_fn) (request_queue_t *, struct request *, - struct request *); typedef void (request_fn_proc) (request_queue_t *q); typedef int (make_request_fn) (request_queue_t *q, struct bio *bio); typedef int (prep_rq_fn) (request_queue_t *, struct request *); @@ -376,9 +372,6 @@ struct request_queue struct request_list rq; request_fn_proc *request_fn; - merge_request_fn *back_merge_fn; - merge_request_fn *front_merge_fn; - merge_requests_fn *merge_requests_fn; make_request_fn *make_request_fn; prep_rq_fn *prep_rq_fn; unplug_fn *unplug_fn; @@ -649,6 +642,11 @@ extern int sg_scsi_ioctl(struct file *, struct request_queue *, struct gendisk *, struct scsi_ioctl_command __user *); /* + * Temporary export, until SCSI gets fixed up. + */ +extern int ll_back_merge_fn(request_queue_t *, struct request *, struct bio *); + +/* * A queue has just exitted congestion. Note this in the global counter of * congested queues, and wake up anyone who was waiting for requests to be * put back. |