[dm-devel] [PATCH 1/9] brd: remove the end of device check in brd_do_bvec

Christoph Hellwig hch at lst.de
Tue Dec 1 16:54:16 UTC 2020


The block layer already checks for this conditions in bio_check_eod
before calling the driver.

Signed-off-by: Christoph Hellwig <hch at lst.de>
---
 drivers/block/brd.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index c43a6ab4b1f39f..c7c8214190795c 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -285,14 +285,10 @@ static int brd_do_bvec(struct brd_device *brd, struct page *page,
 static blk_qc_t brd_submit_bio(struct bio *bio)
 {
 	struct brd_device *brd = bio->bi_disk->private_data;
+	sector_t sector = bio->bi_iter.bi_sector;
 	struct bio_vec bvec;
-	sector_t sector;
 	struct bvec_iter iter;
 
-	sector = bio->bi_iter.bi_sector;
-	if (bio_end_sector(bio) > get_capacity(bio->bi_disk))
-		goto io_error;
-
 	bio_for_each_segment(bvec, bio, iter) {
 		unsigned int len = bvec.bv_len;
 		int err;
-- 
2.29.2




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