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authorChristoph Hellwig <hch@lst.de>2019-04-25 09:04:34 +0200
committerJens Axboe <axboe@kernel.dk>2019-04-30 09:26:42 -0600
commit6601e44efd20efddc183c85131216200e90c5728 (patch)
tree05c4c5605e8c9d7a12d77619e61e7a7b373f7955 /block
parent4713839dfe8269d27d83a33d1e39f9c2970eb31a (diff)
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block: remove bogus comments in __bio_add_pc_page
We are never called with file system pages by defintions for the passthrough interface, and we also never undo any addition later these days. 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.c9
1 files changed, 0 insertions, 9 deletions
diff --git a/block/bio.c b/block/bio.c
index e717b303e1fb..de26dc18bceb 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -724,11 +724,6 @@ static int __bio_add_pc_page(struct request_queue *q, struct bio *bio,
if (((bio->bi_iter.bi_size + len) >> 9) > queue_max_hw_sectors(q))
return 0;
- /*
- * For filesystems with a blocksize smaller than the pagesize
- * we will often be called with the same page as last time and
- * a consecutive offset. Optimize this special case.
- */
if (bio->bi_vcnt > 0) {
bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];
@@ -760,10 +755,6 @@ static int __bio_add_pc_page(struct request_queue *q, struct bio *bio,
if (bio->bi_phys_segments >= queue_max_segments(q))
return 0;
- /*
- * setup the new entry, we might clear it again later if we
- * cannot add the page
- */
bvec = &bio->bi_io_vec[bio->bi_vcnt];
bvec->bv_page = page;
bvec->bv_len = len;