ANDROID: dm-user: Remove bio recount in I/O path

When I/O is submitted to dm-user target, bio already has a referance. Additional referance is not needed in the I/O path. Bug: 229696117 Test: OTA on Pixel Change-Id: I8db6802e751336d7a10c6de0bc7a247a6d7f6b37 Signed-off-by: Akilesh Kailash <[email protected]>
celtare21 · Nov 10, 2022 · 6cbaa88 · 6cbaa88
1 parent 69e2e92
commit 6cbaa88
Showing 1 changed file with 0 additions and 3 deletions.
diff --git a/drivers/md/dm-user.c b/drivers/md/dm-user.c
@@ -188,7 +188,6 @@ static void message_kill(struct message *m, mempool_t *pool)
 {
 	m->bio->bi_status = BLK_STS_IOERR;
 	bio_endio(m->bio);
-	bio_put(m->bio);
 	mempool_free(m, pool);
 }
 
@@ -989,7 +988,6 @@ static ssize_t dev_write(struct kiocb *iocb, struct iov_iter *from)
 	 */
 	WARN_ON(bio_size(c->cur_from_user->bio) != 0);
 	bio_endio(c->cur_from_user->bio);
-	bio_put(c->cur_from_user->bio);
 
 	/*
 	 * We don't actually need to take the target lock here, as all
@@ -1227,7 +1225,6 @@ static int user_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_REQUEUE;
 	}
 
-	bio_get(bio);
 	entry->msg.type = bio_type_to_user_type(bio);
 	entry->msg.flags = bio_flags_to_user_flags(bio);
 	entry->msg.sector = bio->bi_iter.bi_sector;