diff options
| -rw-r--r-- | fs/ocfs2/dlm/dlmcommon.h | 7 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmdomain.c | 26 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmlock.c | 22 | ||||
| -rw-r--r-- | fs/ocfs2/dlm/dlmmaster.c | 61 |
4 files changed, 99 insertions, 17 deletions
diff --git a/fs/ocfs2/dlm/dlmcommon.h b/fs/ocfs2/dlm/dlmcommon.h index dc8ea666efd..7525a8ae394 100644 --- a/fs/ocfs2/dlm/dlmcommon.h +++ b/fs/ocfs2/dlm/dlmcommon.h @@ -963,9 +963,16 @@ static inline void __dlm_wait_on_lockres(struct dlm_lock_resource *res) DLM_LOCK_RES_MIGRATING)); } +/* create/destroy slab caches */ +int dlm_init_master_caches(void); +void dlm_destroy_master_caches(void); + +int dlm_init_lock_cache(void); +void dlm_destroy_lock_cache(void); int dlm_init_mle_cache(void); void dlm_destroy_mle_cache(void); + void dlm_hb_event_notify_attached(struct dlm_ctxt *dlm, int idx, int node_up); int dlm_drop_lockres_ref(struct dlm_ctxt *dlm, struct dlm_lock_resource *res); diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c index 2ce620742f9..b092364d0d5 100644 --- a/fs/ocfs2/dlm/dlmdomain.c +++ b/fs/ocfs2/dlm/dlmdomain.c @@ -1818,21 +1818,41 @@ static int __init dlm_init(void) status = dlm_init_mle_cache(); if (status) { mlog(ML_ERROR, "Could not create o2dlm_mle slabcache\n"); - return -1; + goto error; + } + + status = dlm_init_master_caches(); + if (status) { + mlog(ML_ERROR, "Could not create o2dlm_lockres and " + "o2dlm_lockname slabcaches\n"); + goto error; + } + + status = dlm_init_lock_cache(); + if (status) { + mlog(ML_ERROR, "Count not create o2dlm_lock slabcache\n"); + goto error; } status = dlm_register_net_handlers(); if (status) { - dlm_destroy_mle_cache(); - return -1; + mlog(ML_ERROR, "Unable to register network handlers\n"); + goto error; } return 0; +error: + dlm_destroy_lock_cache(); + dlm_destroy_master_caches(); + dlm_destroy_mle_cache(); + return -1; } static void __exit dlm_exit (void) { dlm_unregister_net_handlers(); + dlm_destroy_lock_cache(); + dlm_destroy_master_caches(); dlm_destroy_mle_cache(); } diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 52578d907d9..83a9f2972ac 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -53,6 +53,8 @@ #define MLOG_MASK_PREFIX ML_DLM #include "cluster/masklog.h" +static struct kmem_cache *dlm_lock_cache = NULL; + static DEFINE_SPINLOCK(dlm_cookie_lock); static u64 dlm_next_cookie = 1; @@ -64,6 +66,22 @@ static void dlm_init_lock(struct dlm_lock *newlock, int type, static void dlm_lock_release(struct kref *kref); static void dlm_lock_detach_lockres(struct dlm_lock *lock); +int dlm_init_lock_cache(void) +{ + dlm_lock_cache = kmem_cache_create("o2dlm_lock", + sizeof(struct dlm_lock), + 0, SLAB_HWCACHE_ALIGN, NULL); + if (dlm_lock_cache == NULL) + return -ENOMEM; + return 0; +} + +void dlm_destroy_lock_cache(void) +{ + if (dlm_lock_cache) + kmem_cache_destroy(dlm_lock_cache); +} + /* Tell us whether we can grant a new lock request. * locking: * caller needs: res->spinlock @@ -353,7 +371,7 @@ static void dlm_lock_release(struct kref *kref) mlog(0, "freeing kernel-allocated lksb\n"); kfree(lock->lksb); } - kfree(lock); + kmem_cache_free(dlm_lock_cache, lock); } /* associate a lock with it's lockres, getting a ref on the lockres */ @@ -412,7 +430,7 @@ struct dlm_lock * dlm_new_lock(int type, u8 node, u64 cookie, struct dlm_lock *lock; int kernel_allocated = 0; - lock = kzalloc(sizeof(*lock), GFP_NOFS); + lock = (struct dlm_lock *) kmem_cache_zalloc(dlm_lock_cache, GFP_NOFS); if (!lock) return NULL; diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c index 90797c59101..ac9ed31e544 100644 --- a/fs/ocfs2/dlm/dlmmaster.c +++ b/fs/ocfs2/dlm/dlmmaster.c @@ -216,10 +216,10 @@ EXPORT_SYMBOL_GPL(dlm_dump_all_mles); #endif /* 0 */ - +static struct kmem_cache *dlm_lockres_cache = NULL; +static struct kmem_cache *dlm_lockname_cache = NULL; static struct kmem_cache *dlm_mle_cache = NULL; - static void dlm_mle_release(struct kref *kref); static void dlm_init_mle(struct dlm_master_list_entry *mle, enum dlm_mle_type type, @@ -560,6 +560,35 @@ static void dlm_mle_release(struct kref *kref) * LOCK RESOURCE FUNCTIONS */ +int dlm_init_master_caches(void) +{ + dlm_lockres_cache = kmem_cache_create("o2dlm_lockres", + sizeof(struct dlm_lock_resource), + 0, SLAB_HWCACHE_ALIGN, NULL); + if (!dlm_lockres_cache) + goto bail; + + dlm_lockname_cache = kmem_cache_create("o2dlm_lockname", + DLM_LOCKID_NAME_MAX, 0, + SLAB_HWCACHE_ALIGN, NULL); + if (!dlm_lockname_cache) + goto bail; + + return 0; +bail: + dlm_destroy_master_caches(); + return -ENOMEM; +} + +void dlm_destroy_master_caches(void) +{ + if (dlm_lockname_cache) + kmem_cache_destroy(dlm_lockname_cache); + + if (dlm_lockres_cache) + kmem_cache_destroy(dlm_lockres_cache); +} + static void dlm_set_lockres_owner(struct dlm_ctxt *dlm, struct dlm_lock_resource *res, u8 owner) @@ -642,9 +671,9 @@ static void dlm_lockres_release(struct kref *kref) BUG_ON(!list_empty(&res->recovering)); BUG_ON(!list_empty(&res->purge)); - kfree(res->lockname.name); + kmem_cache_free(dlm_lockname_cache, (void *)res->lockname.name); - kfree(res); + kmem_cache_free(dlm_lockres_cache, res); } void dlm_lockres_put(struct dlm_lock_resource *res) @@ -700,20 +729,28 @@ struct dlm_lock_resource *dlm_new_lockres(struct dlm_ctxt *dlm, const char *name, unsigned int namelen) { - struct dlm_lock_resource *res; + struct dlm_lock_resource *res = NULL; - res = kmalloc(sizeof(struct dlm_lock_resource), GFP_NOFS); + res = (struct dlm_lock_resource *) + kmem_cache_zalloc(dlm_lockres_cache, GFP_NOFS); if (!res) - return NULL; + goto error; - res->lockname.name = kmalloc(namelen, GFP_NOFS); - if (!res->lockname.name) { - kfree(res); - return NULL; - } + res->lockname.name = (char *) + kmem_cache_zalloc(dlm_lockname_cache, GFP_NOFS); + if (!res->lockname.name) + goto error; dlm_init_lockres(dlm, res, name, namelen); return res; + +error: + if (res && res->lockname.name) + kmem_cache_free(dlm_lockname_cache, (void *)res->lockname.name); + + if (res) + kmem_cache_free(dlm_lockres_cache, res); + return NULL; } void __dlm_lockres_grab_inflight_ref(struct dlm_ctxt *dlm, |