ksm: the mm interface to ksm

[linux-block.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 9a72cc78e6b817d2b7c24b076eef7bd0061235f2..d808cf832c4de5d479d2c4a704b291934a4f1a3f 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -103,6 +103,7 @@ extern unsigned int kobjsize(const void *objp);
 #define VM_MIXEDMAP    0x10000000      /* Can contain "struct page" and pure PFN pages */
 #define VM_SAO         0x20000000      /* Strong Access Ordering (powerpc) */
 #define VM_PFN_AT_MMAP 0x40000000      /* PFNMAP vma that is fully mapped at mmap time */
+#define VM_MERGEABLE   0x80000000      /* KSM may merge identical pages */
 
 #ifndef VM_STACK_DEFAULT_FLAGS         /* arch can override this */
 #define VM_STACK_DEFAULT_FLAGS VM_DATA_DEFAULT_FLAGS
@@ -1058,6 +1059,8 @@ extern void setup_per_cpu_pageset(void);
 static inline void setup_per_cpu_pageset(void) {}
 #endif
 
+extern void zone_pcp_update(struct zone *zone);
+
 /* nommu.c */
 extern atomic_long_t mmap_pages_allocated;