diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 62 |
1 files changed, 30 insertions, 32 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 2c73ed1a8131..3d415ec10fb8 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -33,9 +33,7 @@ #include "blk.h" -static void drive_stat_acct(struct request *rq, int new_io); static int __make_request(struct request_queue *q, struct bio *bio); -static void blk_recalc_rq_segments(struct request *rq); /* * For the allocated request tables @@ -54,6 +52,21 @@ static struct workqueue_struct *kblockd_workqueue; static DEFINE_PER_CPU(struct list_head, blk_cpu_done); +static void drive_stat_acct(struct request *rq, int new_io) +{ + int rw = rq_data_dir(rq); + + if (!blk_fs_request(rq) || !rq->rq_disk) + return; + + if (!new_io) { + __disk_stat_inc(rq->rq_disk, merges[rw]); + } else { + disk_round_stats(rq->rq_disk); + rq->rq_disk->in_flight++; + } +} + void blk_queue_congestion_threshold(struct request_queue *q) { int nr; @@ -168,21 +181,6 @@ void blk_dump_rq_flags(struct request *rq, char *msg) EXPORT_SYMBOL(blk_dump_rq_flags); -void blk_recount_segments(struct request_queue *q, struct bio *bio) -{ - struct request rq; - struct bio *nxt = bio->bi_next; - rq.q = q; - rq.bio = rq.biotail = bio; - bio->bi_next = NULL; - blk_recalc_rq_segments(&rq); - bio->bi_next = nxt; - bio->bi_phys_segments = rq.nr_phys_segments; - bio->bi_hw_segments = rq.nr_hw_segments; - bio->bi_flags |= (1 << BIO_SEG_VALID); -} -EXPORT_SYMBOL(blk_recount_segments); - static void blk_recalc_rq_segments(struct request *rq) { int nr_phys_segs; @@ -255,6 +253,21 @@ new_hw_segment: rq->nr_hw_segments = nr_hw_segs; } +void blk_recount_segments(struct request_queue *q, struct bio *bio) +{ + struct request rq; + struct bio *nxt = bio->bi_next; + rq.q = q; + rq.bio = rq.biotail = bio; + bio->bi_next = NULL; + blk_recalc_rq_segments(&rq); + bio->bi_next = nxt; + bio->bi_phys_segments = rq.nr_phys_segments; + bio->bi_hw_segments = rq.nr_hw_segments; + bio->bi_flags |= (1 << BIO_SEG_VALID); +} +EXPORT_SYMBOL(blk_recount_segments); + static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio, struct bio *nxt) { @@ -1305,21 +1318,6 @@ void blk_insert_request(struct request_queue *q, struct request *rq, EXPORT_SYMBOL(blk_insert_request); -static void drive_stat_acct(struct request *rq, int new_io) -{ - int rw = rq_data_dir(rq); - - if (!blk_fs_request(rq) || !rq->rq_disk) - return; - - if (!new_io) { - __disk_stat_inc(rq->rq_disk, merges[rw]); - } else { - disk_round_stats(rq->rq_disk); - rq->rq_disk->in_flight++; - } -} - /* * add-request adds a request to the linked list. * queue lock is held and interrupts disabled, as we muck with the |