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Commit 9a5b489b authored by Andrea Arcangeli's avatar Andrea Arcangeli Committed by Linus Torvalds
Browse files

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: default avatarAndrea 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: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent ad8c2ee8

mm/memory.c

+1 −0
Original line number Diff line number Diff line
@@ -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);