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| author | Hillf Danton <dhillf@gmail.com> | 2012-01-11 00:08:30 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-01-11 01:30:45 +0100 |
| commit | ea5768c74b8e0d6a866508fc6399d5ff958da5e3 (patch) | |
| tree | c9669e800bca28d9b905b6e47c206a5ea3fe149b /mm | |
| parent | mempool: fix first round failure behavior (diff) | |
| download | linux-ea5768c74b8e0d6a866508fc6399d5ff958da5e3.tar.xz linux-ea5768c74b8e0d6a866508fc6399d5ff958da5e3.zip | |
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>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bb7dc405634f..ea8c3a4cd2ae 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -800,7 +800,7 @@ static struct page *alloc_buddy_huge_page(struct hstate *h, int nid) if (page && arch_prepare_hugepage(page)) { __free_pages(page, huge_page_order(h)); - return NULL; + page = NULL; } spin_lock(&hugetlb_lock); |