memcg: don't use bootmem allocator in setup code

The bootmem allocator is no longer available for page_cgroup_init() because we
set up the kernel slab allocator much earlier now.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>

1 files changed, 8 insertions, 4 deletions

diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 791905c991d..3dd4a909a1d 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -47,6 +47,8 @@ static int __init alloc_node_page_cgroup(int nid)
         struct page_cgroup *base, *pc;
         unsigned long table_size;
         unsigned long start_pfn, nr_pages, index;
+        struct page *page;
+        unsigned int order;
 
         start_pfn = NODE_DATA(nid)->node_start_pfn;
         nr_pages = NODE_DATA(nid)->node_spanned_pages;
@@ -55,11 +57,13 @@ static int __init alloc_node_page_cgroup(int nid)
                 return 0;
 
         table_size = sizeof(struct page_cgroup) * nr_pages;
-
-        base = __alloc_bootmem_node_nopanic(NODE_DATA(nid),
-                        table_size, PAGE_SIZE, __pa(MAX_DMA_ADDRESS));
-        if (!base)
+        order = get_order(table_size);
+        page = alloc_pages_node(nid, GFP_NOWAIT | __GFP_ZERO, order);
+        if (!page)
+                page = alloc_pages_node(-1, GFP_NOWAIT | __GFP_ZERO, order);
+        if (!page)
                 return -ENOMEM;
+        base = page_address(page);
         for (index = 0; index < nr_pages; index++) {
                 pc = base + index;
                 __init_page_cgroup(pc, start_pfn + index);