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-rw-r--r--fs/mbcache.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/fs/mbcache.c b/fs/mbcache.c
index 786ecab..bf166e3 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -99,6 +99,7 @@
static DECLARE_WAIT_QUEUE_HEAD(mb_cache_queue);
static struct blockgroup_lock *mb_cache_bg_lock;
+static struct kmem_cache *mb_cache_kmem_cache;
MODULE_AUTHOR("Andreas Gruenbacher <a.gruenbacher@computer.org>");
MODULE_DESCRIPTION("Meta block cache (for extended attributes)");
@@ -351,11 +352,14 @@ mb_cache_create(const char *name, int bucket_bits)
goto fail;
for (n=0; n<bucket_count; n++)
INIT_HLIST_BL_HEAD(&cache->c_index_hash[n]);
- cache->c_entry_cache = kmem_cache_create(name,
- sizeof(struct mb_cache_entry), 0,
- SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD, NULL);
- if (!cache->c_entry_cache)
- goto fail2;
+ if (!mb_cache_kmem_cache) {
+ mb_cache_kmem_cache = kmem_cache_create(name,
+ sizeof(struct mb_cache_entry), 0,
+ SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD, NULL);
+ if (!mb_cache_kmem_cache)
+ goto fail2;
+ }
+ cache->c_entry_cache = mb_cache_kmem_cache;
/*
* Set an upper limit on the number of cache entries so that the hash
@@ -476,6 +480,10 @@ mb_cache_destroy(struct mb_cache *cache)
atomic_read(&cache->c_entry_count));
}
+ if (list_empty(&mb_cache_list)) {
+ kmem_cache_destroy(mb_cache_kmem_cache);
+ mb_cache_kmem_cache = NULL;
+ }
kfree(cache->c_index_hash);
kfree(cache->c_block_hash);
kfree(cache);
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