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Commit d3775354 authored by Kent Overstreet's avatar Kent Overstreet Committed by Jens Axboe
Browse files

dm: Use kzalloc for all structs with embedded biosets/mempools 



mempool_init()/bioset_init() require that the mempools/biosets be zeroed
first; they probably should not _require_ this, but not allocating those
structs with kzalloc is a fairly nonsensical thing to do (calling
mempool_exit()/bioset_exit() on an uninitialized mempool/bioset is legal
and safe, but only works if said memory was zeroed.)

Acked-by: default avatarMike Snitzer <snitzer@redhat.com>
Signed-off-by: default avatarKent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 0196d6b4

drivers/md/dm-bio-prison-v1.c

+1 −1
Original line number Diff line number Diff line
@@ -33,7 +33,7 @@ static struct kmem_cache *_cell_cache; 
 */

struct dm_bio_prison *dm_bio_prison_create(void)

{

	struct dm_bio_prison *prison = kmalloc(sizeof(*prison), GFP_KERNEL);

	struct dm_bio_prison *prison = kzalloc(sizeof(*prison), GFP_KERNEL);

	int ret;



	if (!prison)

drivers/md/dm-bio-prison-v2.c

+1 −1
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ static struct kmem_cache *_cell_cache; 
 */

struct dm_bio_prison_v2 *dm_bio_prison_create_v2(struct workqueue_struct *wq)

{

	struct dm_bio_prison_v2 *prison = kmalloc(sizeof(*prison), GFP_KERNEL);

	struct dm_bio_prison_v2 *prison = kzalloc(sizeof(*prison), GFP_KERNEL);

	int ret;



	if (!prison)

drivers/md/dm-io.c

+1 −1
Original line number Diff line number Diff line
@@ -51,7 +51,7 @@ struct dm_io_client *dm_io_client_create(void) 
	unsigned min_ios = dm_get_reserved_bio_based_ios();

	int ret;



	client = kmalloc(sizeof(*client), GFP_KERNEL);

	client = kzalloc(sizeof(*client), GFP_KERNEL);

	if (!client)

		return ERR_PTR(-ENOMEM);

drivers/md/dm-kcopyd.c

+1 −1
Original line number Diff line number Diff line
@@ -882,7 +882,7 @@ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *thro 
	int r;

	struct dm_kcopyd_client *kc;



	kc = kmalloc(sizeof(*kc), GFP_KERNEL);

	kc = kzalloc(sizeof(*kc), GFP_KERNEL);

	if (!kc)

		return ERR_PTR(-ENOMEM);

drivers/md/dm-region-hash.c

+1 −1
Original line number Diff line number Diff line
@@ -180,7 +180,7 @@ struct dm_region_hash *dm_region_hash_create( 
		;

	nr_buckets >>= 1;



	rh = kmalloc(sizeof(*rh), GFP_KERNEL);

	rh = kzalloc(sizeof(*rh), GFP_KERNEL);

	if (!rh) {

		DMERR("unable to allocate region hash memory");

		return ERR_PTR(-ENOMEM);