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authorJens Axboe <jens.axboe@oracle.com>2008-05-07 09:33:55 +0200
committerJens Axboe <jens.axboe@oracle.com>2008-05-07 09:33:55 +0200
commit2cdf79cafbd11580f5b63cd4993b45c1c4952415 (patch)
treec0f4b7eea00127675785174a79ff0ac4c6d2669a /block/blk-merge.c
parent7f3d4ee108c184ab215036051087aaaaa8de7661 (diff)
downloadlinux-stericsson-2cdf79cafbd11580f5b63cd4993b45c1c4952415.tar.gz
block: get rid of likely/unlikely predictions in merge logic
They tend to depend a lot on the workload, so not a clear-cut likely or unlikely fit. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/blk-merge.c')
-rw-r--r--block/blk-merge.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/block/blk-merge.c b/block/blk-merge.c
index 73b23562af20..651136aae76e 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -149,9 +149,9 @@ static int blk_phys_contig_segment(struct request_queue *q, struct bio *bio,
static int blk_hw_contig_segment(struct request_queue *q, struct bio *bio,
struct bio *nxt)
{
- if (unlikely(!bio_flagged(bio, BIO_SEG_VALID)))
+ if (!bio_flagged(bio, BIO_SEG_VALID))
blk_recount_segments(q, bio);
- if (unlikely(!bio_flagged(nxt, BIO_SEG_VALID)))
+ if (!bio_flagged(nxt, BIO_SEG_VALID))
blk_recount_segments(q, nxt);
if (!BIOVEC_VIRT_MERGEABLE(__BVEC_END(bio), __BVEC_START(nxt)) ||
BIOVEC_VIRT_OVERSIZE(bio->bi_hw_back_size + nxt->bi_hw_front_size))
@@ -312,9 +312,9 @@ int ll_back_merge_fn(struct request_queue *q, struct request *req,
q->last_merge = NULL;
return 0;
}
- if (unlikely(!bio_flagged(req->biotail, BIO_SEG_VALID)))
+ if (!bio_flagged(req->biotail, BIO_SEG_VALID))
blk_recount_segments(q, req->biotail);
- if (unlikely(!bio_flagged(bio, BIO_SEG_VALID)))
+ if (!bio_flagged(bio, BIO_SEG_VALID))
blk_recount_segments(q, bio);
len = req->biotail->bi_hw_back_size + bio->bi_hw_front_size;
if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(req->biotail), __BVEC_START(bio))
@@ -352,9 +352,9 @@ int ll_front_merge_fn(struct request_queue *q, struct request *req,
return 0;
}
len = bio->bi_hw_back_size + req->bio->bi_hw_front_size;
- if (unlikely(!bio_flagged(bio, BIO_SEG_VALID)))
+ if (!bio_flagged(bio, BIO_SEG_VALID))
blk_recount_segments(q, bio);
- if (unlikely(!bio_flagged(req->bio, BIO_SEG_VALID)))
+ if (!bio_flagged(req->bio, BIO_SEG_VALID))
blk_recount_segments(q, req->bio);
if (BIOVEC_VIRT_MERGEABLE(__BVEC_END(bio), __BVEC_START(req->bio)) &&
!BIOVEC_VIRT_OVERSIZE(len)) {