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nommu: fix malloc performance by adding uninitialized flag
[safe/jmp/linux-2.6]
/
mm
/
page_cgroup.c
diff --git
a/mm/page_cgroup.c
b/mm/page_cgroup.c
index
f22b4eb
..
3d535d5
100644
(file)
--- a/
mm/page_cgroup.c
+++ b/
mm/page_cgroup.c
@@
-116,10
+116,16
@@
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;
VM_BUG_ON(!slab_is_available());
nid = page_to_nid(pfn_to_page(pfn));
table_size = sizeof(struct page_cgroup) * PAGES_PER_SECTION;
VM_BUG_ON(!slab_is_available());
- base = kmalloc_node(table_size,
+ if (node_state(nid, N_HIGH_MEMORY)) {
+ base = kmalloc_node(table_size,
GFP_KERNEL | __GFP_NOWARN, nid);
GFP_KERNEL | __GFP_NOWARN, nid);
- if (!base)
- base = vmalloc_node(table_size, nid);
+ if (!base)
+ base = vmalloc_node(table_size, nid);
+ } else {
+ base = kmalloc(table_size, GFP_KERNEL | __GFP_NOWARN);
+ if (!base)
+ base = vmalloc(table_size);
+ }
} else {
/*
* We don't have to allocate page_cgroup again, but
} else {
/*
* We don't have to allocate page_cgroup again, but