On Mon, 18 Jun 2007, Mel Gorman wrote:
> @@ -632,18 +632,27 @@ static int unmap_and_move(new_page_t get
> goto unlock;
> wait_on_page_writeback(page);
> }
> -
> + /* anon_vma should not be freed while migration. */
> + if (PageAnon(page)) {
> + rcu_read_lock();
> + rcu_locked = 1;
> + }
We agreed on doing rcu_read_lock removing the status variable
and checking for PageAnon(). Doing so deuglifies the
function.
-
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