From: Hillf Danton <dhillf@xxxxxxxxx>
Subject: [PATCH] mm: hugetlb: add might_sleep() for gigantic page
Like the case of huge page, might_sleep() is added for gigantic page, then
both are treated in same way.
Cc: Michal Hocko <mhocko@xxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
---
--- a/mm/hugetlb.c Tue Dec 20 21:26:30 2011
+++ b/mm/hugetlb.c Fri Dec 23 21:19:18 2011
@@ -401,6 +401,7 @@ static void copy_gigantic_page(struct pa
struct page *dst_base = dst;
struct page *src_base = src;
+ might_sleep();
for (i = 0; i < pages_per_huge_page(h); ) {
cond_resched();
copy_highpage(dst, src);
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