[PATCH] slab: remove SLAB_LEVEL_MASK

SLAB_LEVEL_MASK is only used internally to the slab and is
and alias of GFP_LEVEL_MASK.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/slab.h

@@ -26,8 +26,6 @@ typedef struct kmem_cache kmem_cache_t;
 #define	SLAB_KERNEL		GFP_KERNEL
 #define	SLAB_DMA		GFP_DMA
 
-#define SLAB_LEVEL_MASK		GFP_LEVEL_MASK
-
 /* flags to pass to kmem_cache_create().
  * The first 3 are only valid when the allocator as been build
  * SLAB_DEBUG_SUPPORT.

mm/slab.c

@@ -2721,12 +2721,12 @@ static int cache_grow(struct kmem_cache *cachep, gfp_t flags, int nodeid)
 	 * Be lazy and only check for valid flags here,  keeping it out of the
 	 * critical path in kmem_cache_alloc().
 	 */
-	BUG_ON(flags & ~(SLAB_DMA | SLAB_LEVEL_MASK | __GFP_NO_GROW));
+	BUG_ON(flags & ~(SLAB_DMA | GFP_LEVEL_MASK | __GFP_NO_GROW));
 	if (flags & __GFP_NO_GROW)
 		return 0;
 
 	ctor_flags = SLAB_CTOR_CONSTRUCTOR;
-	local_flags = (flags & SLAB_LEVEL_MASK);
+	local_flags = (flags & GFP_LEVEL_MASK);
 	if (!(local_flags & __GFP_WAIT))
 		/*
 		 * Not allowed to sleep.  Need to tell a constructor about