On Wed, 3 Oct 2012, Andrew Morton wrote:
> The free_page_mlock() hunk gets dropped because free_page_mlock() is
> removed. And clear_page_mlock() doesn't need this treatment. But
> please check my handiwork.
>
I reviewed what was merged into -mm and clear_page_mlock() does need this
fix as well. It's an easy fix, there's no need to pass "anon" into
clear_page_mlock() since PageHuge() is already checked in its only caller.
mm, thp: fix mlock statistics fix
Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx>
---
mm/mlock.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/mm/mlock.c b/mm/mlock.c
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -56,7 +56,8 @@ void clear_page_mlock(struct page *page)
if (!TestClearPageMlocked(page))
return;
- dec_zone_page_state(page, NR_MLOCK);
+ mod_zone_page_state(page_zone(page), NR_MLOCK,
+ -hpage_nr_pages(page));
count_vm_event(UNEVICTABLE_PGCLEARED);
if (!isolate_lru_page(page)) {
putback_lru_page(page);
--
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