memcg: add page_cgroup flags for dirty page tracking

[cascardo/linux.git] / include / linux / page_cgroup.h

diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index b02195d..fdb5a92 100644 (file)
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -40,6 +40,9 @@ enum {
        PCG_USED, /* this object is in use. */
        PCG_ACCT_LRU, /* page has been accounted for */
        PCG_FILE_MAPPED, /* page is accounted as "mapped" */
+       PCG_FILE_DIRTY, /* page is dirty */
+       PCG_FILE_WRITEBACK, /* page is under writeback */
+       PCG_FILE_UNSTABLE_NFS, /* page is NFS unstable */
        PCG_MIGRATION, /* under page migration */
 };
 
@@ -59,6 +62,10 @@ static inline void ClearPageCgroup##uname(struct page_cgroup *pc)    \
 static inline int TestClearPageCgroup##uname(struct page_cgroup *pc)   \
        { return test_and_clear_bit(PCG_##lname, &pc->flags);  }
 
+#define TESTSETPCGFLAG(uname, lname)                   \
+static inline int TestSetPageCgroup##uname(struct page_cgroup *pc)     \
+       { return test_and_set_bit(PCG_##lname, &pc->flags);  }
+
 /* Cache flag is set only once (at allocation) */
 TESTPCGFLAG(Cache, CACHE)
 CLEARPCGFLAG(Cache, CACHE)
@@ -78,6 +85,22 @@ SETPCGFLAG(FileMapped, FILE_MAPPED)
 CLEARPCGFLAG(FileMapped, FILE_MAPPED)
 TESTPCGFLAG(FileMapped, FILE_MAPPED)
 
+SETPCGFLAG(FileDirty, FILE_DIRTY)
+CLEARPCGFLAG(FileDirty, FILE_DIRTY)
+TESTPCGFLAG(FileDirty, FILE_DIRTY)
+TESTCLEARPCGFLAG(FileDirty, FILE_DIRTY)
+TESTSETPCGFLAG(FileDirty, FILE_DIRTY)
+
+SETPCGFLAG(FileWriteback, FILE_WRITEBACK)
+CLEARPCGFLAG(FileWriteback, FILE_WRITEBACK)
+TESTPCGFLAG(FileWriteback, FILE_WRITEBACK)
+
+SETPCGFLAG(FileUnstableNFS, FILE_UNSTABLE_NFS)
+CLEARPCGFLAG(FileUnstableNFS, FILE_UNSTABLE_NFS)
+TESTPCGFLAG(FileUnstableNFS, FILE_UNSTABLE_NFS)
+TESTCLEARPCGFLAG(FileUnstableNFS, FILE_UNSTABLE_NFS)
+TESTSETPCGFLAG(FileUnstableNFS, FILE_UNSTABLE_NFS)
+
 SETPCGFLAG(Migration, MIGRATION)
 CLEARPCGFLAG(Migration, MIGRATION)
 TESTPCGFLAG(Migration, MIGRATION)