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setup vma->vm_page_prot by vm_get_page_prot()

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This patch uses vm_get_page_prot() to setup vma->vm_page_prot.

Though inside vm_get_page_prot() the protection flags is AND with
(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED), it does not hurt correct code.

Signed-off-by: Coly Li <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Tony Luck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Coly Li 2007-10-18 23:39:15 -07:00 • committed by Linus Torvalds
commit 3ed75eb8f1
4 changed files with 8 additions and 13 deletions
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6
mm/mprotect.c
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@ -192,11 +192,9 @@ success:
* held in write mode.
*/
vma->vm_flags = newflags;
vma->vm_page_prot = protection_map[newflags &
(VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)];
vma->vm_page_prot = vm_get_page_prot(newflags);
if (vma_wants_writenotify(vma)) {
vma->vm_page_prot = protection_map[newflags &
(VM_READ|VM_WRITE|VM_EXEC)];
vma->vm_page_prot = vm_get_page_prot(newflags);
dirty_accountable = 1;
}