X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mm%2Fmmap.c;h=facc1a75bd4fdbc9f274dbc26a7e536f0eb8f561;hb=46015977e70f672ae6b20a1b5fb1e361208365ba;hp=0d40e66c841b2d2cad8e03ebc6d5e16491b0774b;hpb=6869ce1c145aaea9f9f8eb8623a261d316b0cd19;p=linux-2.6

diff --git a/mm/mmap.c b/mm/mmap.c
index 0d40e66c84..facc1a75bd 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/backing-dev.h>
 #include <linux/mm.h>
 #include <linux/shm.h>
 #include <linux/mman.h>
@@ -180,8 +181,6 @@ error:
 	return -ENOMEM;
 }
 
-EXPORT_SYMBOL(__vm_enough_memory);
-
 /*
  * Requires inode->i_mapping->i_mmap_lock
  */
@@ -1049,8 +1048,7 @@ int vma_wants_writenotify(struct vm_area_struct *vma)
 
 	/* The open routine did something to the protections already? */
 	if (pgprot_val(vma->vm_page_prot) !=
-	    pgprot_val(protection_map[vm_flags &
-		    (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]))
+	    pgprot_val(vm_get_page_prot(vm_flags)))
 		return 0;
 
 	/* Specialty mapping? */
@@ -1131,8 +1129,7 @@ munmap_back:
 	vma->vm_start = addr;
 	vma->vm_end = addr + len;
 	vma->vm_flags = vm_flags;
-	vma->vm_page_prot = protection_map[vm_flags &
-				(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+	vma->vm_page_prot = vm_get_page_prot(vm_flags);
 	vma->vm_pgoff = pgoff;
 
 	if (file) {
@@ -1174,8 +1171,7 @@ munmap_back:
 	vm_flags = vma->vm_flags;
 
 	if (vma_wants_writenotify(vma))
-		vma->vm_page_prot =
-			protection_map[vm_flags & (VM_READ|VM_WRITE|VM_EXEC)];
+		vma->vm_page_prot = vm_get_page_prot(vm_flags & ~VM_SHARED);
 
 	if (!file || !vma_merge(mm, prev, addr, vma->vm_end,
 			vma->vm_flags, NULL, file, pgoff, vma_policy(vma))) {
@@ -2003,8 +1999,7 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
 	vma->vm_end = addr + len;
 	vma->vm_pgoff = pgoff;
 	vma->vm_flags = flags;
-	vma->vm_page_prot = protection_map[flags &
-				(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
+	vma->vm_page_prot = vm_get_page_prot(flags);
 	vma_link(mm, vma, prev, rb_link, rb_parent);
 out:
 	mm->total_vm += len >> PAGE_SHIFT;
@@ -2210,7 +2205,7 @@ int install_special_mapping(struct mm_struct *mm,
 	vma->vm_end = addr + len;
 
 	vma->vm_flags = vm_flags | mm->def_flags;
-	vma->vm_page_prot = protection_map[vma->vm_flags & 7];
+	vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
 
 	vma->vm_ops = &special_mapping_vmops;
 	vma->vm_private_data = pages;