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mm: set VM_FAULT_WRITE in do_swap_page() 

Set the flag if do_swap_page is decowing the page the same way do_wp_page
would too.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andrea Arcangeli 2010-08-09 17:19:49 -07:00 committed by Linus Torvalds
parent ad8c2ee801
commit 9a5b489b87
1 changed files with 1 additions and 0 deletions
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mm/memory.c
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@ -2723,6 +2723,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
if ((flags & FAULT_FLAG_WRITE) && reuse_swap_page(page)) {
pte = maybe_mkwrite(pte_mkdirty(pte), vma);
flags &= ~FAULT_FLAG_WRITE;
ret |= VM_FAULT_WRITE;
exclusive = 1;
}
flush_icache_page(vma, page);