md: convert to bioset_init()/mempool_init()

Convert md to embedded bio sets.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

1 files changed, 29 insertions, 31 deletions

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 3c60774c8430..37d4b236b81b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -291,14 +291,14 @@ static void free_r10bio(struct r10bio *r10_bio)
 	struct r10conf *conf = r10_bio->mddev->private;
 
 	put_all_bios(conf, r10_bio);
-	mempool_free(r10_bio, conf->r10bio_pool);
+	mempool_free(r10_bio, &conf->r10bio_pool);
 }
 
 static void put_buf(struct r10bio *r10_bio)
 {
 	struct r10conf *conf = r10_bio->mddev->private;
 
-	mempool_free(r10_bio, conf->r10buf_pool);
+	mempool_free(r10_bio, &conf->r10buf_pool);
 
 	lower_barrier(conf);
 }
@@ -1204,7 +1204,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio,
 				   (unsigned long long)r10_bio->sector);
 	if (max_sectors < bio_sectors(bio)) {
 		struct bio *split = bio_split(bio, max_sectors,
-					      gfp, conf->bio_split);
+					      gfp, &conf->bio_split);
 		bio_chain(split, bio);
 		generic_make_request(bio);
 		bio = split;
@@ -1213,7 +1213,7 @@ static void raid10_read_request(struct mddev *mddev, struct bio *bio,
 	}
 	slot = r10_bio->read_slot;
 
-	read_bio = bio_clone_fast(bio, gfp, mddev->bio_set);
+	read_bio = bio_clone_fast(bio, gfp, &mddev->bio_set);
 
 	r10_bio->devs[slot].bio = read_bio;
 	r10_bio->devs[slot].rdev = rdev;
@@ -1261,7 +1261,7 @@ static void raid10_write_one_disk(struct mddev *mddev, struct r10bio *r10_bio,
 	} else
 		rdev = conf->mirrors[devnum].rdev;
 
-	mbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set);
+	mbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
 	if (replacement)
 		r10_bio->devs[n_copy].repl_bio = mbio;
 	else
@@ -1509,7 +1509,7 @@ retry_write:
 
 	if (r10_bio->sectors < bio_sectors(bio)) {
 		struct bio *split = bio_split(bio, r10_bio->sectors,
-					      GFP_NOIO, conf->bio_split);
+					      GFP_NOIO, &conf->bio_split);
 		bio_chain(split, bio);
 		generic_make_request(bio);
 		bio = split;
@@ -1533,7 +1533,7 @@ static void __make_request(struct mddev *mddev, struct bio *bio, int sectors)
 	struct r10conf *conf = mddev->private;
 	struct r10bio *r10_bio;
 
-	r10_bio = mempool_alloc(conf->r10bio_pool, GFP_NOIO);
+	r10_bio = mempool_alloc(&conf->r10bio_pool, GFP_NOIO);
 
 	r10_bio->master_bio = bio;
 	r10_bio->sectors = sectors;
@@ -1732,8 +1732,7 @@ static void close_sync(struct r10conf *conf)
 	wait_barrier(conf);
 	allow_barrier(conf);
 
-	mempool_destroy(conf->r10buf_pool);
-	conf->r10buf_pool = NULL;
+	mempool_exit(&conf->r10buf_pool);
 }
 
 static int raid10_spare_active(struct mddev *mddev)
@@ -2583,7 +2582,7 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
 		if (sectors > sect_to_write)
 			sectors = sect_to_write;
 		/* Write at 'sector' for 'sectors' */
-		wbio = bio_clone_fast(bio, GFP_NOIO, mddev->bio_set);
+		wbio = bio_clone_fast(bio, GFP_NOIO, &mddev->bio_set);
 		bio_trim(wbio, sector - bio->bi_iter.bi_sector, sectors);
 		wsector = r10_bio->devs[i].addr + (sector - r10_bio->sector);
 		wbio->bi_iter.bi_sector = wsector +
@@ -2816,25 +2815,25 @@ static void raid10d(struct md_thread *thread)
 
 static int init_resync(struct r10conf *conf)
 {
-	int buffs;
-	int i;
+	int ret, buffs, i;
 
 	buffs = RESYNC_WINDOW / RESYNC_BLOCK_SIZE;
-	BUG_ON(conf->r10buf_pool);
+	BUG_ON(mempool_initialized(&conf->r10buf_pool));
 	conf->have_replacement = 0;
 	for (i = 0; i < conf->geo.raid_disks; i++)
 		if (conf->mirrors[i].replacement)
 			conf->have_replacement = 1;
-	conf->r10buf_pool = mempool_create(buffs, r10buf_pool_alloc, r10buf_pool_free, conf);
-	if (!conf->r10buf_pool)
-		return -ENOMEM;
+	ret = mempool_init(&conf->r10buf_pool, buffs,
+			   r10buf_pool_alloc, r10buf_pool_free, conf);
+	if (ret)
+		return ret;
 	conf->next_resync = 0;
 	return 0;
 }
 
 static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf)
 {
-	struct r10bio *r10bio = mempool_alloc(conf->r10buf_pool, GFP_NOIO);
+	struct r10bio *r10bio = mempool_alloc(&conf->r10buf_pool, GFP_NOIO);
 	struct rsync_pages *rp;
 	struct bio *bio;
 	int nalloc;
@@ -2945,7 +2944,7 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 	sector_t chunk_mask = conf->geo.chunk_mask;
 	int page_idx = 0;
 
-	if (!conf->r10buf_pool)
+	if (!mempool_initialized(&conf->r10buf_pool))
 		if (init_resync(conf))
 			return 0;
 
@@ -3699,13 +3698,13 @@ static struct r10conf *setup_conf(struct mddev *mddev)
 
 	conf->geo = geo;
 	conf->copies = copies;
-	conf->r10bio_pool = mempool_create(NR_RAID10_BIOS, r10bio_pool_alloc,
-					   r10bio_pool_free, conf);
-	if (!conf->r10bio_pool)
+	err = mempool_init(&conf->r10bio_pool, NR_RAID10_BIOS, r10bio_pool_alloc,
+			   r10bio_pool_free, conf);
+	if (err)
 		goto out;
 
-	conf->bio_split = bioset_create(BIO_POOL_SIZE, 0, 0);
-	if (!conf->bio_split)
+	err = bioset_init(&conf->bio_split, BIO_POOL_SIZE, 0, 0);
+	if (err)
 		goto out;
 
 	calc_sectors(conf, mddev->dev_sectors);
@@ -3733,6 +3732,7 @@ static struct r10conf *setup_conf(struct mddev *mddev)
 	init_waitqueue_head(&conf->wait_barrier);
 	atomic_set(&conf->nr_pending, 0);
 
+	err = -ENOMEM;
 	conf->thread = md_register_thread(raid10d, mddev, "raid10");
 	if (!conf->thread)
 		goto out;
@@ -3742,11 +3742,10 @@ static struct r10conf *setup_conf(struct mddev *mddev)
 
  out:
 	if (conf) {
-		mempool_destroy(conf->r10bio_pool);
+		mempool_exit(&conf->r10bio_pool);
 		kfree(conf->mirrors);
 		safe_put_page(conf->tmppage);
-		if (conf->bio_split)
-			bioset_free(conf->bio_split);
+		bioset_exit(&conf->bio_split);
 		kfree(conf);
 	}
 	return ERR_PTR(err);
@@ -3953,7 +3952,7 @@ static int raid10_run(struct mddev *mddev)
 
 out_free_conf:
 	md_unregister_thread(&mddev->thread);
-	mempool_destroy(conf->r10bio_pool);
+	mempool_exit(&conf->r10bio_pool);
 	safe_put_page(conf->tmppage);
 	kfree(conf->mirrors);
 	kfree(conf);
@@ -3966,13 +3965,12 @@ static void raid10_free(struct mddev *mddev, void *priv)
 {
 	struct r10conf *conf = priv;
 
-	mempool_destroy(conf->r10bio_pool);
+	mempool_exit(&conf->r10bio_pool);
 	safe_put_page(conf->tmppage);
 	kfree(conf->mirrors);
 	kfree(conf->mirrors_old);
 	kfree(conf->mirrors_new);
-	if (conf->bio_split)
-		bioset_free(conf->bio_split);
+	bioset_exit(&conf->bio_split);
 	kfree(conf);
 }
 
@@ -4543,7 +4541,7 @@ read_more:
 		 * on all the target devices.
 		 */
 		// FIXME
-		mempool_free(r10_bio, conf->r10buf_pool);
+		mempool_free(r10_bio, &conf->r10buf_pool);
 		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
 		return sectors_done;
 	}