From: Christoph Hellwig <hch@lst.de>
Date: Tue, 26 Jan 2021 14:52:41 +0000 (+0100)
Subject: md: remove bio_alloc_mddev
X-Git-Tag: accepted/tizen/unified/20230118.172025~7683^2~47
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a78f18da669242ad57237070f298212e342bf602;p=platform%2Fkernel%2Flinux-rpi.git

md: remove bio_alloc_mddev

bio_alloc_mddev is never called with a NULL mddev, and ->bio_set is
initialized in md_run, so it always must be initialized as well.  Just
open code the remaining call to bio_alloc_bioset.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Song Liu <song@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 7d1bb24..e2b9dbb 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -340,16 +340,6 @@ static int start_readonly;
  */
 static bool create_on_open = true;
 
-struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
-			    struct mddev *mddev)
-{
-	if (!mddev || !bioset_initialized(&mddev->bio_set))
-		return bio_alloc(gfp_mask, nr_iovecs);
-
-	return bio_alloc_bioset(gfp_mask, nr_iovecs, &mddev->bio_set);
-}
-EXPORT_SYMBOL_GPL(bio_alloc_mddev);
-
 static struct bio *md_bio_alloc_sync(struct mddev *mddev)
 {
 	if (!mddev || !bioset_initialized(&mddev->sync_set))
@@ -613,7 +603,7 @@ static void submit_flushes(struct work_struct *ws)
 			atomic_inc(&rdev->nr_pending);
 			atomic_inc(&rdev->nr_pending);
 			rcu_read_unlock();
-			bi = bio_alloc_mddev(GFP_NOIO, 0, mddev);
+			bi = bio_alloc_bioset(GFP_NOIO, 0, &mddev->bio_set);
 			bi->bi_end_io = md_end_flush;
 			bi->bi_private = rdev;
 			bio_set_dev(bi, rdev->bdev);
diff --git a/drivers/md/md.h b/drivers/md/md.h
index f13290c..bcbba1b 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -742,8 +742,6 @@ extern void md_rdev_clear(struct md_rdev *rdev);
 extern void md_handle_request(struct mddev *mddev, struct bio *bio);
 extern void mddev_suspend(struct mddev *mddev);
 extern void mddev_resume(struct mddev *mddev);
-extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
-				   struct mddev *mddev);
 
 extern void md_reload_sb(struct mddev *mddev, int raid_disk);
 extern void md_update_sb(struct mddev *mddev, int force);
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3b19141..d237876 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1104,7 +1104,7 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
 	int i = 0;
 	struct bio *behind_bio = NULL;
 
-	behind_bio = bio_alloc_mddev(GFP_NOIO, vcnt, r1_bio->mddev);
+	behind_bio = bio_alloc_bioset(GFP_NOIO, vcnt, &r1_bio->mddev->bio_set);
 	if (!behind_bio)
 		return;
 
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index be8f14a..e1eefbe 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4531,7 +4531,7 @@ read_more:
 		return sectors_done;
 	}
 
-	read_bio = bio_alloc_mddev(GFP_KERNEL, RESYNC_PAGES, mddev);
+	read_bio = bio_alloc_bioset(GFP_KERNEL, RESYNC_PAGES, &mddev->bio_set);
 
 	bio_set_dev(read_bio, rdev->bdev);
 	read_bio->bi_iter.bi_sector = (r10_bio->devs[r10_bio->read_slot].addr