From: Zhaoyang Huang <zhaoyang.huang@xxxxxxxxxx>
High-order pcp page escaped from checking when both of DEBUG_VM and debug_pagealloc
are all disabled if it allocated again from pcp_list without going to global
free list, which should be introduced by 44042b4498.
fix:44042b4498
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@xxxxxxxxxx>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e008a3d..e77f3a7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1437,7 +1437,7 @@ static bool bulkfree_pcp_prepare(struct page *page)
*/
static bool free_pcp_prepare(struct page *page, unsigned int order)
{
- if (debug_pagealloc_enabled_static())
+ if (debug_pagealloc_enabled_static() || order)
return free_pages_prepare(page, order, true, FPI_NONE);
else
return free_pages_prepare(page, order, false, FPI_NONE);
--
1.9.1
