diff options
Diffstat (limited to 'security/selinux/ss/hashtab.c')
| -rw-r--r-- | security/selinux/ss/hashtab.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c index 6bd6dcd954fa..fe25b3fb2154 100644 --- a/security/selinux/ss/hashtab.c +++ b/security/selinux/ss/hashtab.c @@ -10,6 +10,8 @@ #include <linux/sched.h> #include "hashtab.h" +static struct kmem_cache *hashtab_node_cachep; + struct hashtab *hashtab_create(u32 (*hash_value)(struct hashtab *h, const void *key), int (*keycmp)(struct hashtab *h, const void *key1, const void *key2), u32 size) @@ -58,7 +60,7 @@ int hashtab_insert(struct hashtab *h, void *key, void *datum) if (cur && (h->keycmp(h, key, cur->key) == 0)) return -EEXIST; - newnode = kzalloc(sizeof(*newnode), GFP_KERNEL); + newnode = kmem_cache_zalloc(hashtab_node_cachep, GFP_KERNEL); if (!newnode) return -ENOMEM; newnode->key = key; @@ -107,7 +109,7 @@ void hashtab_destroy(struct hashtab *h) while (cur) { temp = cur; cur = cur->next; - kfree(temp); + kmem_cache_free(hashtab_node_cachep, temp); } h->htable[i] = NULL; } @@ -149,7 +151,7 @@ void hashtab_stat(struct hashtab *h, struct hashtab_info *info) slots_used = 0; max_chain_len = 0; - for (slots_used = max_chain_len = i = 0; i < h->size; i++) { + for (i = 0; i < h->size; i++) { cur = h->htable[i]; if (cur) { slots_used++; @@ -167,3 +169,14 @@ void hashtab_stat(struct hashtab *h, struct hashtab_info *info) info->slots_used = slots_used; info->max_chain_len = max_chain_len; } +void hashtab_cache_init(void) +{ + hashtab_node_cachep = kmem_cache_create("hashtab_node", + sizeof(struct hashtab_node), + 0, SLAB_PANIC, NULL); +} + +void hashtab_cache_destroy(void) +{ + kmem_cache_destroy(hashtab_node_cachep); +} |