[PATCH] V4L/DVB: (3086c) Whitespaces cleanups part 3

[pandora-kernel.git] / include / linux / gfp.h

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index c377943..8b2eab9 100644 (file)
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -11,9 +11,16 @@ struct vm_area_struct;
 /*
  * GFP bitmasks..
  */
-/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low two bits) */
+/* Zone modifiers in GFP_ZONEMASK (see linux/mmzone.h - low three bits) */
 #define __GFP_DMA      ((__force gfp_t)0x01u)
 #define __GFP_HIGHMEM  ((__force gfp_t)0x02u)
+#ifdef CONFIG_DMA_IS_DMA32
+#define __GFP_DMA32    ((__force gfp_t)0x01)   /* ZONE_DMA is ZONE_DMA32 */
+#elif BITS_PER_LONG < 64
+#define __GFP_DMA32    ((__force gfp_t)0x00)   /* ZONE_NORMAL is ZONE_DMA32 */
+#else
+#define __GFP_DMA32    ((__force gfp_t)0x04)   /* Has own ZONE_DMA32 */
+#endif
 
 /*
  * Action modifiers - doesn't change the zoning
@@ -39,8 +46,7 @@ struct vm_area_struct;
 #define __GFP_COMP     ((__force gfp_t)0x4000u)/* Add compound page metadata */
 #define __GFP_ZERO     ((__force gfp_t)0x8000u)/* Return zeroed page on success */
 #define __GFP_NOMEMALLOC ((__force gfp_t)0x10000u) /* Don't use emergency reserves */
-#define __GFP_NORECLAIM  ((__force gfp_t)0x20000u) /* No realy zone reclaim during allocation */
-#define __GFP_HARDWALL   ((__force gfp_t)0x40000u) /* Enforce hardwall cpuset memory allocs */
+#define __GFP_HARDWALL   ((__force gfp_t)0x20000u) /* Enforce hardwall cpuset memory allocs */
 
 #define __GFP_BITS_SHIFT 20    /* Room for 20 __GFP_FOO bits */
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
@@ -49,7 +55,7 @@ struct vm_area_struct;
 #define GFP_LEVEL_MASK (__GFP_WAIT|__GFP_HIGH|__GFP_IO|__GFP_FS| \
                        __GFP_COLD|__GFP_NOWARN|__GFP_REPEAT| \
                        __GFP_NOFAIL|__GFP_NORETRY|__GFP_NO_GROW|__GFP_COMP| \
-                       __GFP_NOMEMALLOC|__GFP_NORECLAIM|__GFP_HARDWALL)
+                       __GFP_NOMEMALLOC|__GFP_HARDWALL)
 
 #define GFP_ATOMIC     (__GFP_HIGH)
 #define GFP_NOIO       (__GFP_WAIT)
@@ -64,7 +70,16 @@ struct vm_area_struct;
 
 #define GFP_DMA                __GFP_DMA
 
-#define gfp_zone(mask) ((__force int)((mask) & (__force gfp_t)GFP_ZONEMASK))
+/* 4GB DMA on some platforms */
+#define GFP_DMA32      __GFP_DMA32
+
+
+static inline int gfp_zone(gfp_t gfp)
+{
+       int zone = GFP_ZONEMASK & (__force int) gfp;
+       BUG_ON(zone >= GFP_ZONETYPES);
+       return zone;
+}
 
 /*
  * There is only one page-allocator function, and two main namespaces to