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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2009-02-11 13:04:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-11 14:25:35 -0800
commit2e9c23724328ae4e56c42a35a717a956d7d3001d (patch)
treee96657542d354cef4d50020b48ab565053810d5d /mm
parentd4097456cd1d9285e876fc5d08a789462804cc28 (diff)
downloadlinux-2e9c23724328ae4e56c42a35a717a956d7d3001d.tar.gz
memcg: use __GFP_NOWARN in page cgroup allocation
page_cgroup's page allocation at init/memory hotplug uses kmalloc() and vmalloc(). If kmalloc() failes, vmalloc() is used. This is because vmalloc() is very limited resource on 32bit systems. We want to use kmalloc() first. But in this kind of call, __GFP_NOWARN should be specified. Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> 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.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 7006a11350c..ceecfbb143f 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -114,7 +114,8 @@ static int __init_refok init_section_page_cgroup(unsigned long pfn)
nid = page_to_nid(pfn_to_page(pfn));
table_size = sizeof(struct page_cgroup) * PAGES_PER_SECTION;
if (slab_is_available()) {
- base = kmalloc_node(table_size, GFP_KERNEL, nid);
+ base = kmalloc_node(table_size,
+ GFP_KERNEL | __GFP_NOWARN, nid);
if (!base)
base = vmalloc_node(table_size, nid);
} else {