diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/mm/slab.c b/mm/slab.c index f257d4dd474..e74a16e4ced 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -305,12 +305,6 @@ struct kmem_list3 { }; /* - * The slab allocator is initialized with interrupts disabled. Therefore, make - * sure early boot allocations don't accidentally enable interrupts. - */ -static gfp_t slab_gfp_mask __read_mostly = SLAB_GFP_BOOT_MASK; - -/* * Need this for bootstrapping a per node allocator. */ #define NUM_INIT_LISTS (3 * MAX_NUMNODES) @@ -1559,11 +1553,6 @@ void __init kmem_cache_init_late(void) { struct kmem_cache *cachep; - /* - * Interrupts are enabled now so all GFP allocations are safe. - */ - slab_gfp_mask = __GFP_BITS_MASK; - /* 6) resize the head arrays to their final sizes */ mutex_lock(&cache_chain_mutex); list_for_each_entry(cachep, &cache_chain, next) @@ -2308,6 +2297,15 @@ kmem_cache_create (const char *name, size_t size, size_t align, /* really off slab. No need for manual alignment */ slab_size = cachep->num * sizeof(kmem_bufctl_t) + sizeof(struct slab); + +#ifdef CONFIG_PAGE_POISONING + /* If we're going to use the generic kernel_map_pages() + * poisoning, then it's going to smash the contents of + * the redzone and userword anyhow, so switch them off. + */ + if (size % PAGE_SIZE == 0 && flags & SLAB_POISON) + flags &= ~(SLAB_RED_ZONE | SLAB_STORE_USER); +#endif } cachep->colour_off = cache_line_size(); @@ -3298,7 +3296,7 @@ __cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid, unsigned long save_flags; void *ptr; - flags &= slab_gfp_mask; + flags &= gfp_allowed_mask; lockdep_trace_alloc(flags); @@ -3383,7 +3381,7 @@ __cache_alloc(struct kmem_cache *cachep, gfp_t flags, void *caller) unsigned long save_flags; void *objp; - flags &= slab_gfp_mask; + flags &= gfp_allowed_mask; lockdep_trace_alloc(flags); |