Driver core: exclude kobject_uevent.c for !CONFIG_HOTPLUG

[linux-2.6-omap-h63xx.git] / include / linux / gfp.h

diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 2a7d15bcde4684a8b40a4f7aaf65e2e0177faf39..bc68dd9a6d41f8035fa9d1f0dcc27578085fe1b5 100644 (file)
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -30,6 +30,9 @@ struct vm_area_struct;
  * cannot handle allocation failures.
  *
  * __GFP_NORETRY: The VM implementation must not retry indefinitely.
+ *
+ * __GFP_MOVABLE: Flag that this page will be movable by the page migration
+ * mechanism or reclaimed
  */
 #define __GFP_WAIT     ((__force gfp_t)0x10u)  /* Can wait and reschedule? */
 #define __GFP_HIGH     ((__force gfp_t)0x20u)  /* Should access emergency pools? */
@@ -40,12 +43,12 @@ struct vm_area_struct;
 #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_NO_GROW  ((__force gfp_t)0x2000u)/* Slab internal usage */
 #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_HARDWALL   ((__force gfp_t)0x20000u) /* Enforce hardwall cpuset memory allocs */
 #define __GFP_THISNODE ((__force gfp_t)0x40000u)/* No fallback, no policies */
+#define __GFP_MOVABLE  ((__force gfp_t)0x80000u) /* Page is movable */
 
 #define __GFP_BITS_SHIFT 20    /* Room for 20 __GFP_FOO bits */
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
@@ -53,8 +56,9 @@ struct vm_area_struct;
 /* if you forget to add the bitmask here kernel will crash, period */
 #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_HARDWALL|__GFP_THISNODE)
+                       __GFP_NOFAIL|__GFP_NORETRY|__GFP_COMP| \
+                       __GFP_NOMEMALLOC|__GFP_HARDWALL|__GFP_THISNODE| \
+                       __GFP_MOVABLE)
 
 /* This equals 0, but use constants in case they ever change */
 #define GFP_NOWAIT     (GFP_ATOMIC & ~__GFP_HIGH)
@@ -66,6 +70,15 @@ struct vm_area_struct;
 #define GFP_USER       (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL)
 #define GFP_HIGHUSER   (__GFP_WAIT | __GFP_IO | __GFP_FS | __GFP_HARDWALL | \
                         __GFP_HIGHMEM)
+#define GFP_HIGHUSER_MOVABLE   (__GFP_WAIT | __GFP_IO | __GFP_FS | \
+                                __GFP_HARDWALL | __GFP_HIGHMEM | \
+                                __GFP_MOVABLE)
+#define GFP_NOFS_PAGECACHE     (__GFP_WAIT | __GFP_IO | __GFP_MOVABLE)
+#define GFP_USER_PAGECACHE     (__GFP_WAIT | __GFP_IO | __GFP_FS | \
+                                __GFP_HARDWALL | __GFP_MOVABLE)
+#define GFP_HIGHUSER_PAGECACHE (__GFP_WAIT | __GFP_IO | __GFP_FS | \
+                                __GFP_HARDWALL | __GFP_HIGHMEM | \
+                                __GFP_MOVABLE)
 
 #ifdef CONFIG_NUMA
 #define GFP_THISNODE   (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY)
@@ -93,6 +106,9 @@ static inline enum zone_type gfp_zone(gfp_t flags)
        if (flags & __GFP_DMA32)
                return ZONE_DMA32;
 #endif
+       if ((flags & (__GFP_HIGHMEM | __GFP_MOVABLE)) ==
+                       (__GFP_HIGHMEM | __GFP_MOVABLE))
+               return ZONE_MOVABLE;
 #ifdef CONFIG_HIGHMEM
        if (flags & __GFP_HIGHMEM)
                return ZONE_HIGHMEM;
@@ -177,10 +193,6 @@ extern void FASTCALL(free_cold_page(struct page *page));
 #define free_page(addr) free_pages((addr),0)
 
 void page_alloc_init(void);
-#ifdef CONFIG_NUMA
-void drain_node_pages(int node);
-#else
-static inline void drain_node_pages(int node) { };
-#endif
+void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp);
 
 #endif /* __LINUX_GFP_H */