From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
With list poisoning on by default from linux-2.6.7, it's easier than ever to
trigger the bug in try_to_free_low(). It ought to use the safe version of
list iterater.
Signed-off-by: Ken Chen <kenneth.w.chen@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/mm/hugetlb.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/hugetlb.c~hugetlb-use-safe-iterator mm/hugetlb.c
--- 25/mm/hugetlb.c~hugetlb-use-safe-iterator Tue Jun 22 15:10:43 2004
+++ 25-akpm/mm/hugetlb.c Tue Jun 22 15:10:43 2004
@@ -134,8 +134,8 @@ static int try_to_free_low(unsigned long
{
int i;
for (i = 0; i < MAX_NUMNODES; ++i) {
- struct page *page;
- list_for_each_entry(page, &hugepage_freelists[i], lru) {
+ struct page *page, *next;
+ list_for_each_entry_safe(page, next, &hugepage_freelists[i], lru) {
if (PageHighMem(page))
continue;
list_del(&page->lru);
_