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authorJun'ichi Nomura <j-nomura@ce.jp.nec.com>2013-03-01 22:45:48 +0000
committerAlasdair G Kergon <agk@redhat.com>2013-03-01 22:45:48 +0000
commit23e5083b4d47e778bf7983329989dab7543def14 (patch)
tree2df0c48d02a4af159cbbe08231a26d94143cc809 /drivers/md/dm.c
parent87eb5b21d92a92ac2da3163039d62df88c2b8422 (diff)
dm: remove unused _rq_bio_info_cache
Remove _rq_bio_info_cache, which is no longer used. No functional changes. Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c31
1 files changed, 10 insertions, 21 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 1016c14c28a..031f1f1c711 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -205,12 +205,6 @@ struct dm_md_mempools {
static struct kmem_cache *_io_cache;
static struct kmem_cache *_rq_tio_cache;
-/*
- * Unused now, and needs to be deleted. But since io_pool is overloaded and it's
- * still used for _io_cache, I'm leaving this for a later cleanup
- */
-static struct kmem_cache *_rq_bio_info_cache;
-
static int __init local_init(void)
{
int r = -ENOMEM;
@@ -224,13 +218,9 @@ static int __init local_init(void)
if (!_rq_tio_cache)
goto out_free_io_cache;
- _rq_bio_info_cache = KMEM_CACHE(dm_rq_clone_bio_info, 0);
- if (!_rq_bio_info_cache)
- goto out_free_rq_tio_cache;
-
r = dm_uevent_init();
if (r)
- goto out_free_rq_bio_info_cache;
+ goto out_free_rq_tio_cache;
_major = major;
r = register_blkdev(_major, _name);
@@ -244,8 +234,6 @@ static int __init local_init(void)
out_uevent_exit:
dm_uevent_exit();
-out_free_rq_bio_info_cache:
- kmem_cache_destroy(_rq_bio_info_cache);
out_free_rq_tio_cache:
kmem_cache_destroy(_rq_tio_cache);
out_free_io_cache:
@@ -256,7 +244,6 @@ out_free_io_cache:
static void local_exit(void)
{
- kmem_cache_destroy(_rq_bio_info_cache);
kmem_cache_destroy(_rq_tio_cache);
kmem_cache_destroy(_io_cache);
unregister_blkdev(_major, _name);
@@ -1986,7 +1973,7 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t)
{
struct dm_md_mempools *p = dm_table_get_md_mempools(t);
- if (md->io_pool && md->bs) {
+ if (md->bs) {
/* The md already has necessary mempools. */
if (dm_table_get_type(t) == DM_TYPE_BIO_BASED) {
/*
@@ -2780,11 +2767,12 @@ struct dm_md_mempools *dm_alloc_md_mempools(unsigned type, unsigned integrity, u
per_bio_data_size = roundup(per_bio_data_size, __alignof__(struct dm_target_io));
- pools->io_pool = (type == DM_TYPE_BIO_BASED) ?
- mempool_create_slab_pool(MIN_IOS, _io_cache) :
- mempool_create_slab_pool(MIN_IOS, _rq_bio_info_cache);
- if (!pools->io_pool)
- goto free_pools_and_out;
+ pools->io_pool = NULL;
+ if (type == DM_TYPE_BIO_BASED) {
+ pools->io_pool = mempool_create_slab_pool(MIN_IOS, _io_cache);
+ if (!pools->io_pool)
+ goto free_pools_and_out;
+ }
pools->tio_pool = NULL;
if (type == DM_TYPE_REQUEST_BASED) {
@@ -2814,7 +2802,8 @@ free_tio_pool_and_out:
mempool_destroy(pools->tio_pool);
free_io_pool_and_out:
- mempool_destroy(pools->io_pool);
+ if (pools->io_pool)
+ mempool_destroy(pools->io_pool);
free_pools_and_out:
kfree(pools);