Since commit a9ce315aaec1f ("mm: memcontrol: rewrite uncharge API"),
PCG_* flags are used as bit masks, but they are still defined in a enum
as bit numbers. Fix it.
Signed-off-by: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
---
include/linux/page_cgroup.h | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index fb60e4a466c0..9065a61345a1 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -1,12 +1,10 @@
#ifndef __LINUX_PAGE_CGROUP_H
#define __LINUX_PAGE_CGROUP_H
-enum {
- /* flags for mem_cgroup */
- PCG_USED, /* This page is charged to a memcg */
- PCG_MEM, /* This page holds a memory charge */
- PCG_MEMSW, /* This page holds a memory+swap charge */
-};
+/* flags for mem_cgroup */
+#define PCG_USED 0x01 /* This page is charged to a memcg */
+#define PCG_MEM 0x02 /* This page holds a memory charge */
+#define PCG_MEMSW 0x04 /* This page holds a memory+swap charge */
struct pglist_data;
@@ -44,7 +42,7 @@ struct page *lookup_cgroup_page(struct page_cgroup *pc);
static inline int PageCgroupUsed(struct page_cgroup *pc)
{
- return test_bit(PCG_USED, &pc->flags);
+ return !!(pc->flags & PCG_USED);
}
#else /* !CONFIG_MEMCG */
struct page_cgroup;
--
1.7.10.4
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