diff options
author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-06-05 05:26:33 -0400 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-06 12:09:10 +0100 |
commit | d9b19e637bd9a1fbf318416e040073233969e582 (patch) | |
tree | 020056ee5a7b9844e74081dd84ff11bca0d22e4e | |
parent | 40dbcbebf0e0b51eeef8ae150a62ffd03ee57c57 (diff) |
dm: Use kzalloc for all structs with embedded biosets/mempools
[ Upstream commit d377535405686f735b90a8ad4ba269484cd7c96e ]
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: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r-- | drivers/md/dm-bio-prison.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-io.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-kcopyd.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-region-hash.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-snap.c | 2 | ||||
-rw-r--r-- | drivers/md/dm-thin.c | 2 |
6 files changed, 6 insertions, 6 deletions
diff --git a/drivers/md/dm-bio-prison.c b/drivers/md/dm-bio-prison.c index 03af174485d3..fa2432a89bac 100644 --- a/drivers/md/dm-bio-prison.c +++ b/drivers/md/dm-bio-prison.c @@ -32,7 +32,7 @@ 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); if (!prison) return NULL; diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 1b84d2890fbf..ad9a470e5382 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -50,7 +50,7 @@ struct dm_io_client *dm_io_client_create(void) struct dm_io_client *client; unsigned min_ios = dm_get_reserved_bio_based_ios(); - client = kmalloc(sizeof(*client), GFP_KERNEL); + client = kzalloc(sizeof(*client), GFP_KERNEL); if (!client) return ERR_PTR(-ENOMEM); diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c index 04248394843e..09df2c688ba9 100644 --- a/drivers/md/dm-kcopyd.c +++ b/drivers/md/dm-kcopyd.c @@ -827,7 +827,7 @@ struct dm_kcopyd_client *dm_kcopyd_client_create(struct dm_kcopyd_throttle *thro int r = -ENOMEM; struct dm_kcopyd_client *kc; - kc = kmalloc(sizeof(*kc), GFP_KERNEL); + kc = kzalloc(sizeof(*kc), GFP_KERNEL); if (!kc) return ERR_PTR(-ENOMEM); diff --git a/drivers/md/dm-region-hash.c b/drivers/md/dm-region-hash.c index 74cb7b991d41..a93a4e683999 100644 --- a/drivers/md/dm-region-hash.c +++ b/drivers/md/dm-region-hash.c @@ -179,7 +179,7 @@ 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); diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 98950c4bf939..510b0cf430a8 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -1137,7 +1137,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) origin_mode = FMODE_WRITE; } - s = kmalloc(sizeof(*s), GFP_KERNEL); + s = kzalloc(sizeof(*s), GFP_KERNEL); if (!s) { ti->error = "Cannot allocate private snapshot structure"; r = -ENOMEM; diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index d52ea584e0bc..4d7eae3d32b0 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2882,7 +2882,7 @@ static struct pool *pool_create(struct mapped_device *pool_md, return (struct pool *)pmd; } - pool = kmalloc(sizeof(*pool), GFP_KERNEL); + pool = kzalloc(sizeof(*pool), GFP_KERNEL); if (!pool) { *error = "Error allocating memory for pool"; err_p = ERR_PTR(-ENOMEM); |