diff options
Diffstat (limited to 'drivers/md/dm-cache-target.c')
| -rw-r--r-- | drivers/md/dm-cache-target.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 40709310e327..849eb6333e98 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -10,6 +10,7 @@ #include "dm-bio-record.h" #include "dm-cache-metadata.h" #include "dm-io-tracker.h" +#include "dm-cache-background-tracker.h" #include <linux/dm-io.h> #include <linux/dm-kcopyd.h> @@ -2263,7 +2264,7 @@ static int parse_cache_args(struct cache_args *ca, int argc, char **argv, /*----------------------------------------------------------------*/ -static struct kmem_cache *migration_cache; +static struct kmem_cache *migration_cache = NULL; #define NOT_CORE_OPTION 1 @@ -3445,22 +3446,36 @@ static int __init dm_cache_init(void) int r; migration_cache = KMEM_CACHE(dm_cache_migration, 0); - if (!migration_cache) - return -ENOMEM; + if (!migration_cache) { + r = -ENOMEM; + goto err; + } + + btracker_work_cache = kmem_cache_create("dm_cache_bt_work", + sizeof(struct bt_work), __alignof__(struct bt_work), 0, NULL); + if (!btracker_work_cache) { + r = -ENOMEM; + goto err; + } r = dm_register_target(&cache_target); if (r) { - kmem_cache_destroy(migration_cache); - return r; + goto err; } return 0; + +err: + kmem_cache_destroy(migration_cache); + kmem_cache_destroy(btracker_work_cache); + return r; } static void __exit dm_cache_exit(void) { dm_unregister_target(&cache_target); kmem_cache_destroy(migration_cache); + kmem_cache_destroy(btracker_work_cache); } module_init(dm_cache_init); |