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-rw-r--r--include/linux/page_cgroup.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index ada779f..4b938d4 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -38,6 +38,7 @@ enum {
PCG_LOCK, /* page cgroup is locked */
PCG_CACHE, /* charged as cache */
PCG_USED, /* this object is in use. */
+ PCG_ACCT_LRU, /* page has been accounted for */
};
#define TESTPCGFLAG(uname, lname) \
@@ -52,11 +53,23 @@ static inline void SetPageCgroup##uname(struct page_cgroup *pc)\
static inline void ClearPageCgroup##uname(struct page_cgroup *pc) \
{ clear_bit(PCG_##lname, &pc->flags); }
+#define TESTCLEARPCGFLAG(uname, lname) \
+static inline int TestClearPageCgroup##uname(struct page_cgroup *pc) \
+ { return test_and_clear_bit(PCG_##lname, &pc->flags); }
+
/* Cache flag is set only once (at allocation) */
TESTPCGFLAG(Cache, CACHE)
+CLEARPCGFLAG(Cache, CACHE)
+SETPCGFLAG(Cache, CACHE)
TESTPCGFLAG(Used, USED)
CLEARPCGFLAG(Used, USED)
+SETPCGFLAG(Used, USED)
+
+SETPCGFLAG(AcctLRU, ACCT_LRU)
+CLEARPCGFLAG(AcctLRU, ACCT_LRU)
+TESTPCGFLAG(AcctLRU, ACCT_LRU)
+TESTCLEARPCGFLAG(AcctLRU, ACCT_LRU)
static inline int page_cgroup_nid(struct page_cgroup *pc)
{
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