From e86f2b005a51437d2887eec5ee659d0287d370ad Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@kernel.org>
Date: Wed, 30 Mar 2022 13:52:10 -0400
Subject: [PATCH] dm: simplify basic targets
Git-commit: e86f2b005a51437d2887eec5ee659d0287d370ad
Patch-mainline: v5.19-rc1
References: jsc#PED-2765

Remove needless factoring and remap bi_sector regardless of
bio_sectors() being non-zero.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Coly Li <colyli@suse.de>

---
 drivers/md/dm-delay.c  |  3 +--
 drivers/md/dm-flakey.c |  4 +---
 drivers/md/dm-linear.c | 11 ++---------
 3 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index 9a51bf51a859..869afef5654a 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -296,8 +296,7 @@ static int delay_map(struct dm_target *ti, struct bio *bio)
 	}
 	delayed->class = c;
 	bio_set_dev(bio, c->dev->bdev);
-	if (bio_sectors(bio))
-		bio->bi_iter.bi_sector = c->start + dm_target_offset(ti, bio->bi_iter.bi_sector);
+	bio->bi_iter.bi_sector = c->start + dm_target_offset(ti, bio->bi_iter.bi_sector);
 
 	return delay_bio(dc, c, bio);
 }
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 345229d7e59c..f2305eb758a2 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -280,9 +280,7 @@ static void flakey_map_bio(struct dm_target *ti, struct bio *bio)
 	struct flakey_c *fc = ti->private;
 
 	bio_set_dev(bio, fc->dev->bdev);
-	if (bio_sectors(bio) || op_is_zone_mgmt(bio_op(bio)))
-		bio->bi_iter.bi_sector =
-			flakey_map_sector(ti, bio->bi_iter.bi_sector);
+	bio->bi_iter.bi_sector = flakey_map_sector(ti, bio->bi_iter.bi_sector);
 }
 
 static void corrupt_bio_data(struct bio *bio, struct flakey_c *fc)
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 76b486e4d2be..0a6abbbe3745 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -84,19 +84,12 @@ static sector_t linear_map_sector(struct dm_target *ti, sector_t bi_sector)
 	return lc->start + dm_target_offset(ti, bi_sector);
 }
 
-static void linear_map_bio(struct dm_target *ti, struct bio *bio)
+static int linear_map(struct dm_target *ti, struct bio *bio)
 {
 	struct linear_c *lc = ti->private;
 
 	bio_set_dev(bio, lc->dev->bdev);
-	if (bio_sectors(bio) || op_is_zone_mgmt(bio_op(bio)))
-		bio->bi_iter.bi_sector =
-			linear_map_sector(ti, bio->bi_iter.bi_sector);
-}
-
-static int linear_map(struct dm_target *ti, struct bio *bio)
-{
-	linear_map_bio(ti, bio);
+	bio->bi_iter.bi_sector = linear_map_sector(ti, bio->bi_iter.bi_sector);
 
 	return DM_MAPIO_REMAPPED;
 }
-- 
2.35.3