[PATCH 1/3] memcg: mark init_section_page_cgroup() properly

[Namhyung Kim]

The commit ca371c0d7e23 ("memcg: fix page_cgroup fatal error
in FLATMEM") removes call to alloc_bootmem() in the function
so that it can be marked as __meminit to reduce memory usage
when MEMORY_HOTPLUG=n.

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
---
 mm/page_cgroup.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 5bffada7cde1..2d1a0fa01d7b 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -105,8 +105,7 @@ struct page_cgroup *lookup_page_cgroup(struct page *page)
 	return section->page_cgroup + pfn;
 }
 
-/* __alloc_bootmem...() is protected by !slab_available() */
-static int __init_refok init_section_page_cgroup(unsigned long pfn)
+static int __meminit init_section_page_cgroup(unsigned long pfn)
 {
 	struct mem_section *section = __pfn_to_section(pfn);
 	struct page_cgroup *base, *pc;
-- 
1.7.4

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