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authorChristoph Hellwig <hch@lst.de>2019-04-25 09:04:35 +0200
committerJens Axboe <axboe@kernel.dk>2019-04-30 09:26:44 -0600
commitdcdca753c152efe8d86ec7a15423307807a516a7 (patch)
tree9a6ec4cac5f573083640537344a334b870ccd181 /block
parent6601e44efd20efddc183c85131216200e90c5728 (diff)
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block: clean up __bio_add_pc_page a bit
Share the bi_size update by moving the done label up, and duplicate the bv_len update in the two callers to get rid of the bvec_merge label. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
-rw-r--r--block/bio.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/block/bio.c b/block/bio.c
index de26dc18bceb..029afb121a48 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -731,9 +731,7 @@ static int __bio_add_pc_page(struct request_queue *q, struct bio *bio,
offset == bvec->bv_offset + bvec->bv_len) {
if (put_same_page)
put_page(page);
- bvec_merge:
bvec->bv_len += len;
- bio->bi_iter.bi_size += len;
goto done;
}
@@ -745,8 +743,10 @@ static int __bio_add_pc_page(struct request_queue *q, struct bio *bio,
return 0;
if (page_is_mergeable(bvec, page, len, offset, false) &&
- can_add_page_to_seg(q, bvec, page, len, offset))
- goto bvec_merge;
+ can_add_page_to_seg(q, bvec, page, len, offset)) {
+ bvec->bv_len += len;
+ goto done;
+ }
}
if (bio_full(bio))
@@ -760,9 +760,8 @@ static int __bio_add_pc_page(struct request_queue *q, struct bio *bio,
bvec->bv_len = len;
bvec->bv_offset = offset;
bio->bi_vcnt++;
- bio->bi_iter.bi_size += len;
-
done:
+ bio->bi_iter.bi_size += len;
bio->bi_phys_segments = bio->bi_vcnt;
bio_set_flag(bio, BIO_SEG_VALID);
return len;