commit b0f01ecf293c49d841abbf8b55c4b717936ab11e
author Guoqing Jiang <jgq516@gmail.com> Tue Sep 03 11:41:03 2019 +0200
committer Song Liu <songliubraving@fb.com> Tue Sep 03 14:52:38 2019 -0700
tree 65b19f0c9add1c4abad4cca08e8cc26d890ec967
parent 07f1a6850c5d5a65c917c3165692b5179ac4cb6b

md/raid5: use bio_end_sector to calculate last_sector

Use the common way to get last_sector.

Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Song Liu <songliubraving@fb.com>

drivers/md/raid5.c

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 88e56ee..da6a86e 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5499,7 +5499,7 @@ static void make_discard_request(struct mddev *mddev, struct bio *bi)
 		return;
 
 	logical_sector = bi->bi_iter.bi_sector & ~((sector_t)STRIPE_SECTORS-1);
-	last_sector = bi->bi_iter.bi_sector + (bi->bi_iter.bi_size>>9);
+	last_sector = bio_end_sector(bi);
 
 	bi->bi_next = NULL;