mm/hugetlb.c: avoid bogus counter of surplus huge page
authorHillf Danton <dhillf@gmail.com>
Tue, 10 Jan 2012 23:08:30 +0000 (15:08 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 11 Jan 2012 00:30:45 +0000 (16:30 -0800)
commit8117597ff69bfb8dd4ea8e826fc8eeb338a9d6ed
treec9669e800bca28d9b905b6e47c206a5ea3fe149b
parent87356307e798f9959e8fe8058d26a0fc1a00c5da
mm/hugetlb.c: avoid bogus counter of surplus huge page

If we have to hand back the newly allocated huge page to page allocator,
for any reason, the changed counter should be recovered.

This affects only s390 at present.

Signed-off-by: Hillf Danton <dhillf@gmail.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/hugetlb.c