diff options
| author | KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2008-12-09 13:14:20 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-10 08:01:53 -0800 |
| commit | 653d22c0f5c41496c0e949ef5d141ab37c0b0580 (patch) | |
| tree | 45754ea4067b21b9ff95a398494b239b5bb7005a /mm | |
| parent | cc61686001b1368724d1c38805c27e5021cd85ed (diff) | |
| download | lwn-653d22c0f5c41496c0e949ef5d141ab37c0b0580.tar.gz lwn-653d22c0f5c41496c0e949ef5d141ab37c0b0580.zip | |
page_cgroup should ignore empty nodes
Fix a total bootup freeze on ia64.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Tested-by: Li Zefan <lizf@cn.fujitsu.com>
Reported-by: Li Zefan <lizf@cn.fujitsu.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/page_cgroup.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index 0b3cbf090a67..ab27ff750519 100644 --- a/mm/page_cgroup.c +++ b/mm/page_cgroup.c @@ -49,6 +49,9 @@ static int __init alloc_node_page_cgroup(int nid) start_pfn = NODE_DATA(nid)->node_start_pfn; nr_pages = NODE_DATA(nid)->node_spanned_pages; + if (!nr_pages) + return 0; + table_size = sizeof(struct page_cgroup) * nr_pages; base = __alloc_bootmem_node_nopanic(NODE_DATA(nid), |