xtensa: s6000 dma engine support

[pandora-kernel.git] / mm / slab.c

diff --git a/mm/slab.c b/mm/slab.c
index f257d4d..e74a16e 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -304,12 +304,6 @@ struct kmem_list3 {
        int free_touched;               /* updated without locking */
 };
 
-/*
- * 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.
  */
@@ -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);