diff options
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 30 |
1 files changed, 2 insertions, 28 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 01d0f9c410fb..4284ad8d9892 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -149,7 +149,6 @@ static int dm_numa_node = DM_NUMA_NODE; * For mempools pre-allocation at the table loading time. */ struct dm_md_mempools { - mempool_t *io_pool; struct bio_set *bs; struct bio_set *io_bs; }; @@ -160,7 +159,6 @@ struct table_device { struct dm_dev dm_dev; }; -static struct kmem_cache *_io_cache; static struct kmem_cache *_rq_tio_cache; static struct kmem_cache *_rq_cache; @@ -227,14 +225,9 @@ static int __init local_init(void) { int r = -ENOMEM; - /* allocate a slab for the dm_ios */ - _io_cache = KMEM_CACHE(dm_io, 0); - if (!_io_cache) - return r; - _rq_tio_cache = KMEM_CACHE(dm_rq_target_io, 0); if (!_rq_tio_cache) - goto out_free_io_cache; + return r; _rq_cache = kmem_cache_create("dm_old_clone_request", sizeof(struct request), __alignof__(struct request), 0, NULL); @@ -269,8 +262,6 @@ out_free_rq_cache: kmem_cache_destroy(_rq_cache); out_free_rq_tio_cache: kmem_cache_destroy(_rq_tio_cache); -out_free_io_cache: - kmem_cache_destroy(_io_cache); return r; } @@ -282,7 +273,6 @@ static void local_exit(void) kmem_cache_destroy(_rq_cache); kmem_cache_destroy(_rq_tio_cache); - kmem_cache_destroy(_io_cache); unregister_blkdev(_major, _name); dm_uevent_exit(); @@ -1698,7 +1688,6 @@ static void cleanup_mapped_device(struct mapped_device *md) destroy_workqueue(md->wq); if (md->kworker_task) kthread_stop(md->kworker_task); - mempool_destroy(md->io_pool); if (md->bs) bioset_free(md->bs); if (md->io_bs) @@ -1881,14 +1870,6 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t) bioset_free(md->io_bs); md->io_bs = NULL; } - if (md->io_pool) { - /* - * Reload io_pool because pool_size may have changed - * because a different table was loaded. - */ - mempool_destroy(md->io_pool); - md->io_pool = NULL; - } } else if (md->bs) { /* @@ -1902,10 +1883,8 @@ static void __bind_mempools(struct mapped_device *md, struct dm_table *t) goto out; } - BUG_ON(!p || md->io_pool || md->bs || md->io_bs); + BUG_ON(!p || md->bs || md->io_bs); - md->io_pool = p->io_pool; - p->io_pool = NULL; md->bs = p->bs; p->bs = NULL; md->io_bs = p->io_bs; @@ -2816,9 +2795,6 @@ struct dm_md_mempools *dm_alloc_md_mempools(struct mapped_device *md, enum dm_qu goto out; if (integrity && bioset_integrity_create(pools->io_bs, pool_size)) goto out; - pools->io_pool = mempool_create_slab_pool(pool_size, _io_cache); - if (!pools->io_pool) - goto out; break; case DM_TYPE_REQUEST_BASED: case DM_TYPE_MQ_REQUEST_BASED: @@ -2850,8 +2826,6 @@ void dm_free_md_mempools(struct dm_md_mempools *pools) if (!pools) return; - mempool_destroy(pools->io_pool); - if (pools->bs) bioset_free(pools->bs); if (pools->io_bs) |