On 05/01/2010 05:39 AM, Andrea Arcangeli wrote:
=== Subject: fix race between shift_arg_pages and rmap_walk From: Andrea Arcangeli<aarcange@xxxxxxxxxx> migrate.c requires rmap to be able to find all ptes mapping a page at all times, otherwise the migration entry can be instantiated, but it can't be removed if the second rmap_walk fails to find the page. And split_huge_page() will have the same requirements as migrate.c already has. Signed-off-by: Andrea Arcangeli<aarcange@xxxxxxxxxx>
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