+++ /dev/null
-From stable-bounces@linux.kernel.org Tue Feb 7 13:06:55 2006
-Date: Tue, 07 Feb 2006 12:58:25 -0800
-From: akpm@osdl.org
-To: torvalds@osdl.org
-Cc: dwg@au1.ibm.com, stable@kernel.org, wli@holomorphy.com,
- david@gibson.dropbear.id.au
-Subject: [PATCH] Hugepages need clear_user_highpage() not clear_highpage()
-
-From: David Gibson <david@gibson.dropbear.id.au>
-
-When hugepages are newly allocated to a file in mm/hugetlb.c, we clear them
-with a call to clear_highpage() on each of the subpages. We should be
-using clear_user_highpage(): on powerpc, at least, clear_highpage() doesn't
-correctly mark the page as icache dirty so if the page is executed shortly
-after it's possible to get strange results.
-
-Signed-off-by: David Gibson <dwg@au1.ibm.com>
-Acked-by: William Lee Irwin III <wli@holomorphy.com>
-Cc: <stable@kernel.org>
-Signed-off-by: Andrew Morton <akpm@osdl.org>
-Signed-off-by: Chris Wright <chrisw@sous-sol.org>
----
-
- mm/hugetlb.c | 2 +-
- 1 files changed, 1 insertion(+), 1 deletion(-)
-
-Index: linux-2.6.15.3/mm/hugetlb.c
-===================================================================
---- linux-2.6.15.3.orig/mm/hugetlb.c
-+++ linux-2.6.15.3/mm/hugetlb.c
-@@ -100,7 +100,7 @@ struct page *alloc_huge_page(void)
- set_page_count(page, 1);
- page[1].mapping = (void *)free_huge_page;
- for (i = 0; i < (HPAGE_SIZE/PAGE_SIZE); ++i)
-- clear_highpage(&page[i]);
-+ clear_user_highpage(&page[i], addr);
- return page;
- }
-