mm: hugetlb: fix clear_huge_page()

commit 74dbdd239bb1348ad86d28b18574d9c1f28b62ca upstream.

sz is in bytes, MAX_ORDER_NR_PAGES is in pages.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: David Gibson <dwg@au1.ibm.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: David Rientjes <rientjes@google.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index b7b02cec778ce88a0f4a7961260d3866b278d0bf..f5a106eeb2bd532c258c0b0d83c422de17a7b924 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -401,7 +401,7 @@ static void clear_huge_page(struct page *page,
 {
        int i;
 
-       if (unlikely(sz > MAX_ORDER_NR_PAGES)) {
+       if (unlikely(sz/PAGE_SIZE > MAX_ORDER_NR_PAGES)) {
                clear_gigantic_page(page, addr, sz);
                return;
        }