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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2009-02-11 16:04:29 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-11 17:25:35 -0500
commit2e9c23724328ae4e56c42a35a717a956d7d3001d (patch)
treee96657542d354cef4d50020b48ab565053810d5d
parentd4097456cd1d9285e876fc5d08a789462804cc28 (diff)
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>
-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 7006a11350c8..ceecfbb143fa 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)
114 nid = page_to_nid(pfn_to_page(pfn)); 114 nid = page_to_nid(pfn_to_page(pfn));
115 table_size = sizeof(struct page_cgroup) * PAGES_PER_SECTION; 115 table_size = sizeof(struct page_cgroup) * PAGES_PER_SECTION;
116 if (slab_is_available()) { 116 if (slab_is_available()) {
117 base = kmalloc_node(table_size, GFP_KERNEL, nid); 117 base = kmalloc_node(table_size,
118 GFP_KERNEL | __GFP_NOWARN, nid);
118 if (!base) 119 if (!base)
119 base = vmalloc_node(table_size, nid); 120 base = vmalloc_node(table_size, nid);
120 } else { 121 } else {