From: Roel Kluin <12o3l@tiscali.nl> In my likely profile it appears this one is inverted. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Andrew Morton --- block/blk-merge.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff -puN block/blk-merge.c~block-blk-mergec-inverted-likeliness-in-ll_back_merge_fn block/blk-merge.c --- a/block/blk-merge.c~block-blk-mergec-inverted-likeliness-in-ll_back_merge_fn +++ a/block/blk-merge.c @@ -305,7 +305,7 @@ int ll_back_merge_fn(struct request_queu } if (unlikely(!bio_flagged(req->biotail, BIO_SEG_VALID))) blk_recount_segments(q, req->biotail); - if (unlikely(!bio_flagged(bio, BIO_SEG_VALID))) + if (likely(!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)) _