X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fgfp.h;h=b414be387180f1db79c90977921296640e15f5e9;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=0c6ce515185d24f32476a1b4ebec353be36419bd;hpb=8976b6fd7a0060f72e20d5cec833c03d50874cd1;p=linux-2.6

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 0c6ce51518..b414be3871 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -40,9 +40,9 @@ struct vm_area_struct;
 #define __GFP_FS	((__force gfp_t)0x80u)	/* Can call down to low-level FS? */
 #define __GFP_COLD	((__force gfp_t)0x100u)	/* Cache-cold page required */
 #define __GFP_NOWARN	((__force gfp_t)0x200u)	/* Suppress page allocation failure warning */
-#define __GFP_REPEAT	((__force gfp_t)0x400u)	/* Retry the allocation.  Might fail */
-#define __GFP_NOFAIL	((__force gfp_t)0x800u)	/* Retry for ever.  Cannot fail */
-#define __GFP_NORETRY	((__force gfp_t)0x1000u)/* Do not retry.  Might fail */
+#define __GFP_REPEAT	((__force gfp_t)0x400u)	/* See above */
+#define __GFP_NOFAIL	((__force gfp_t)0x800u)	/* See above */
+#define __GFP_NORETRY	((__force gfp_t)0x1000u)/* See above */
 #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 */
@@ -119,35 +119,22 @@ static inline int allocflags_to_migratetype(gfp_t gfp_flags)
 
 static inline enum zone_type gfp_zone(gfp_t flags)
 {
-	int base = 0;
-
-#ifdef CONFIG_NUMA
-	if (flags & __GFP_THISNODE)
-		base = MAX_NR_ZONES;
-#endif
-
 #ifdef CONFIG_ZONE_DMA
 	if (flags & __GFP_DMA)
-		return base + ZONE_DMA;
+		return ZONE_DMA;
 #endif
 #ifdef CONFIG_ZONE_DMA32
 	if (flags & __GFP_DMA32)
-		return base + ZONE_DMA32;
+		return ZONE_DMA32;
 #endif
 	if ((flags & (__GFP_HIGHMEM | __GFP_MOVABLE)) ==
 			(__GFP_HIGHMEM | __GFP_MOVABLE))
-		return base + ZONE_MOVABLE;
+		return ZONE_MOVABLE;
 #ifdef CONFIG_HIGHMEM
 	if (flags & __GFP_HIGHMEM)
-		return base + ZONE_HIGHMEM;
+		return ZONE_HIGHMEM;
 #endif
-	return base + ZONE_NORMAL;
-}
-
-static inline gfp_t set_migrateflags(gfp_t gfp, gfp_t migrate_flags)
-{
-	BUG_ON((gfp & GFP_MOVABLE_MASK) == GFP_MOVABLE_MASK);
-	return (gfp & ~(GFP_MOVABLE_MASK)) | migrate_flags;
+	return ZONE_NORMAL;
 }
 
 /*
@@ -157,13 +144,27 @@ static inline gfp_t set_migrateflags(gfp_t gfp, gfp_t migrate_flags)
  * virtual kernel addresses to the allocated page(s).
  */
 
+static inline int gfp_zonelist(gfp_t flags)
+{
+	if (NUMA_BUILD && unlikely(flags & __GFP_THISNODE))
+		return 1;
+
+	return 0;
+}
+
 /*
  * We get the zone list from the current node and the gfp_mask.
  * This zone list contains a maximum of MAXNODES*MAX_NR_ZONES zones.
+ * There are two zonelists per node, one for all zones with memory and
+ * one containing just zones from the node the zonelist belongs to.
  *
  * For the normal case of non-DISCONTIGMEM systems the NODE_DATA() gets
  * optimized to &contig_page_data at compile-time.
  */
+static inline struct zonelist *node_zonelist(int nid, gfp_t flags)
+{
+	return NODE_DATA(nid)->node_zonelists + gfp_zonelist(flags);
+}
 
 #ifndef HAVE_ARCH_FREE_PAGE
 static inline void arch_free_page(struct page *page, int order) { }
@@ -172,8 +173,11 @@ static inline void arch_free_page(struct page *page, int order) { }
 static inline void arch_alloc_page(struct page *page, int order) { }
 #endif
 
+extern struct page *__alloc_pages(gfp_t, unsigned int, struct zonelist *);
+
 extern struct page *
-FASTCALL(__alloc_pages(gfp_t, unsigned int, struct zonelist *));
+__alloc_pages_nodemask(gfp_t, unsigned int,
+				struct zonelist *, nodemask_t *nodemask);
 
 static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
 						unsigned int order)
@@ -185,8 +189,7 @@ static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
 	if (nid < 0)
 		nid = numa_node_id();
 
-	return __alloc_pages(gfp_mask, order,
-		NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_mask));
+	return __alloc_pages(gfp_mask, order, node_zonelist(nid, gfp_mask));
 }
 
 #ifdef CONFIG_NUMA
@@ -209,8 +212,8 @@ extern struct page *alloc_page_vma(gfp_t gfp_mask,
 #endif
 #define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0)
 
-extern unsigned long FASTCALL(__get_free_pages(gfp_t gfp_mask, unsigned int order));
-extern unsigned long FASTCALL(get_zeroed_page(gfp_t gfp_mask));
+extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order);
+extern unsigned long get_zeroed_page(gfp_t gfp_mask);
 
 #define __get_free_page(gfp_mask) \
 		__get_free_pages((gfp_mask),0)
@@ -218,10 +221,10 @@ extern unsigned long FASTCALL(get_zeroed_page(gfp_t gfp_mask));
 #define __get_dma_pages(gfp_mask, order) \
 		__get_free_pages((gfp_mask) | GFP_DMA,(order))
 
-extern void FASTCALL(__free_pages(struct page *page, unsigned int order));
-extern void FASTCALL(free_pages(unsigned long addr, unsigned int order));
-extern void FASTCALL(free_hot_page(struct page *page));
-extern void FASTCALL(free_cold_page(struct page *page));
+extern void __free_pages(struct page *page, unsigned int order);
+extern void free_pages(unsigned long addr, unsigned int order);
+extern void free_hot_page(struct page *page);
+extern void free_cold_page(struct page *page);
 
 #define __free_page(page) __free_pages((page), 0)
 #define free_page(addr) free_pages((addr),0)