diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/slab.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/mm/slab.c b/mm/slab.c index ef9f60fe37d6..681837499d7d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3418,7 +3418,7 @@ const char *kmem_cache_name(struct kmem_cache *cachep) EXPORT_SYMBOL_GPL(kmem_cache_name); /* - * This initializes kmem_list3 for all nodes. + * This initializes kmem_list3 or resizes varioius caches for all nodes. */ static int alloc_kmemlist(struct kmem_cache *cachep) { @@ -3433,10 +3433,13 @@ static int alloc_kmemlist(struct kmem_cache *cachep) if (!new_alien) goto fail; - new_shared = alloc_arraycache(node, cachep->shared*cachep->batchcount, + new_shared = alloc_arraycache(node, + cachep->shared*cachep->batchcount, 0xbaadf00d); - if (!new_shared) + if (!new_shared) { + free_alien_cache(new_alien); goto fail; + } l3 = cachep->nodelists[node]; if (l3) { @@ -3445,7 +3448,8 @@ static int alloc_kmemlist(struct kmem_cache *cachep) spin_lock_irq(&l3->list_lock); if (shared) - free_block(cachep, shared->entry, shared->avail, node); + free_block(cachep, shared->entry, + shared->avail, node); l3->shared = new_shared; if (!l3->alien) { @@ -3460,8 +3464,11 @@ static int alloc_kmemlist(struct kmem_cache *cachep) continue; } l3 = kmalloc_node(sizeof(struct kmem_list3), GFP_KERNEL, node); - if (!l3) + if (!l3) { + free_alien_cache(new_alien); + kfree(new_shared); goto fail; + } kmem_list3_init(l3); l3->next_reap = jiffies + REAPTIMEOUT_LIST3 + @@ -3473,7 +3480,23 @@ static int alloc_kmemlist(struct kmem_cache *cachep) cachep->nodelists[node] = l3; } return 0; + fail: + if (!cachep->next.next) { + /* Cache is not active yet. Roll back what we did */ + node--; + while (node >= 0) { + if (cachep->nodelists[node]) { + l3 = cachep->nodelists[node]; + + kfree(l3->shared); + free_alien_cache(l3->alien); + kfree(l3); + cachep->nodelists[node] = NULL; + } + node--; + } + } return -ENOMEM; } |