[VLAN]: Avoid expensive divides

[safe/jmp/linux-2.6] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index cc551f0..1897ca2 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -10,9 +10,7 @@
 #include <linux/mmzone.h>
 #include <linux/rbtree.h>
 #include <linux/prio_tree.h>
-#include <linux/mutex.h>
 #include <linux/debug_locks.h>
-#include <linux/backing-dev.h>
 #include <linux/mm_types.h>
 
 struct mempolicy;
@@ -35,6 +33,8 @@ extern int sysctl_legacy_va_layout;
 #define sysctl_legacy_va_layout 0
 #endif
 
+extern unsigned long mmap_min_addr;
+
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
@@ -515,6 +515,21 @@ static inline void set_page_links(struct page *page, enum zone_type zone,
 }
 
 /*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+#ifdef CONFIG_SECURITY
+       hint &= PAGE_MASK;
+       if (((void *)hint != NULL) &&
+           (hint < mmap_min_addr))
+               return PAGE_ALIGN(mmap_min_addr);
+#endif
+       return hint;
+}
+
+/*
  * Some inline functions in vmstat.h depend on page_zone()
  */
 #include <linux/vmstat.h>
@@ -648,9 +663,6 @@ static inline int page_mapped(struct page *page)
 extern void show_free_areas(void);
 
 #ifdef CONFIG_SHMEM
-int shmem_set_policy(struct vm_area_struct *vma, struct mempolicy *new);
-struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
-                                       unsigned long addr);
 int shmem_lock(struct file *file, int lock, struct user_struct *user);
 #else
 static inline int shmem_lock(struct file *file, int lock,
@@ -658,18 +670,6 @@ static inline int shmem_lock(struct file *file, int lock,
 {
        return 0;
 }
-
-static inline int shmem_set_policy(struct vm_area_struct *vma,
-                                  struct mempolicy *new)
-{
-       return 0;
-}
-
-static inline struct mempolicy *shmem_get_policy(struct vm_area_struct *vma,
-                                                unsigned long addr)
-{
-       return NULL;
-}
 #endif
 struct file *shmem_file_setup(char *name, loff_t size, unsigned long flags);