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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2012-07-31 16:42:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-31 18:42:41 -0700
commitabb8206cb07734d0b7bf033c715995d6371a94c3 (patch)
treea27a55420bd6fad941c559bb80176f10931deb60 /include/linux
parentda1def55919f4852c4759249a78d63a0c5d2d8f9 (diff)
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hugetlb/cgroup: add hugetlb cgroup control files
Add the control files for hugetlb controller [akpm@linux-foundation.org: s/CONFIG_CGROUP_HUGETLB_RES_CTLR/CONFIG_MEMCG_HUGETLB/g] [akpm@linux-foundation.org: s/CONFIG_MEMCG_HUGETLB/CONFIG_CGROUP_HUGETLB/] Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: David Rientjes <rientjes@google.com> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Hillf Danton <dhillf@gmail.com> Reviewed-by: Michal Hocko <mhocko@suse.cz> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/hugetlb.h5
-rw-r--r--include/linux/hugetlb_cgroup.h6
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 3d677dd41898..f9db20bfa9fc 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -4,6 +4,7 @@
#include <linux/mm_types.h>
#include <linux/fs.h>
#include <linux/hugetlb_inline.h>
+#include <linux/cgroup.h>
struct ctl_table;
struct user_struct;
@@ -221,6 +222,10 @@ struct hstate {
unsigned int nr_huge_pages_node[MAX_NUMNODES];
unsigned int free_huge_pages_node[MAX_NUMNODES];
unsigned int surplus_huge_pages_node[MAX_NUMNODES];
+#ifdef CONFIG_CGROUP_HUGETLB
+ /* cgroup control files */
+ struct cftype cgroup_files[5];
+#endif
char name[HSTATE_NAME_LEN];
};
diff --git a/include/linux/hugetlb_cgroup.h b/include/linux/hugetlb_cgroup.h
index 7d3fde996be3..73f1e600fc12 100644
--- a/include/linux/hugetlb_cgroup.h
+++ b/include/linux/hugetlb_cgroup.h
@@ -62,6 +62,7 @@ extern void hugetlb_cgroup_uncharge_page(int idx, unsigned long nr_pages,
struct page *page);
extern void hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages,
struct hugetlb_cgroup *h_cg);
+extern int hugetlb_cgroup_file_init(int idx) __init;
#else
static inline struct hugetlb_cgroup *hugetlb_cgroup_from_page(struct page *page)
@@ -108,5 +109,10 @@ hugetlb_cgroup_uncharge_cgroup(int idx, unsigned long nr_pages,
return;
}
+static inline int __init hugetlb_cgroup_file_init(int idx)
+{
+ return 0;
+}
+
#endif /* CONFIG_MEM_RES_CTLR_HUGETLB */
#endif
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