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authorPaul Mackerras <paulus@samba.org>2008-05-16 09:13:42 -0400
committerPaul Mackerras <paulus@samba.org>2008-05-16 09:13:42 -0400
commitfcff474ea5cb17ff015aa40e92ed86fede41f1e2 (patch)
treea99c0e14daaf31cb078812fb2fbc6abadfcd738f /mm/mprotect.c
parent541b2755c2ef7dd2242ac606c115daa11e43ef69 (diff)
parentf26a3988917913b3d11b2bd741601a2c64ab9204 (diff)
Merge branch 'linux-2.6' into powerpc-next
Diffstat (limited to 'mm/mprotect.c')
-rw-r--r--mm/mprotect.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 4de546899dc1..a5bf31c27375 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -26,6 +26,13 @@
26#include <asm/cacheflush.h> 26#include <asm/cacheflush.h>
27#include <asm/tlbflush.h> 27#include <asm/tlbflush.h>
28 28
29#ifndef pgprot_modify
30static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
31{
32 return newprot;
33}
34#endif
35
29static void change_pte_range(struct mm_struct *mm, pmd_t *pmd, 36static void change_pte_range(struct mm_struct *mm, pmd_t *pmd,
30 unsigned long addr, unsigned long end, pgprot_t newprot, 37 unsigned long addr, unsigned long end, pgprot_t newprot,
31 int dirty_accountable) 38 int dirty_accountable)
@@ -192,7 +199,9 @@ success:
192 * held in write mode. 199 * held in write mode.
193 */ 200 */
194 vma->vm_flags = newflags; 201 vma->vm_flags = newflags;
195 vma->vm_page_prot = vm_get_page_prot(newflags); 202 vma->vm_page_prot = pgprot_modify(vma->vm_page_prot,
203 vm_get_page_prot(newflags));
204
196 if (vma_wants_writenotify(vma)) { 205 if (vma_wants_writenotify(vma)) {
197 vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED); 206 vma->vm_page_prot = vm_get_page_prot(newflags & ~VM_SHARED);
198 dirty_accountable = 1; 207 dirty_accountable = 1;