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Subject[PATCH] mm: hugetlb: add might_sleep() for gigantic page
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From: Hillf Danton <dhillf@gmail.com>
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@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hillf Danton <dhillf@gmail.com>
---

--- 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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