1 files changed, 1 insertions, 32 deletions

diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index a2d11771c84b..a88cdba27809 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -4,12 +4,8 @@
 enum {
         /* flags for mem_cgroup */
         PCG_LOCK,  /* Lock for pc->mem_cgroup and following bits. */
-        PCG_CACHE, /* charged as cache */
         PCG_USED, /* this object is in use. */
         PCG_MIGRATION, /* under page migration */
-        /* flags for mem_cgroup and file and I/O status */
-        PCG_MOVE_LOCK, /* For race between move_account v.s. following bits */
-        PCG_FILE_MAPPED, /* page is accounted as "mapped" */
         __NR_PCG_FLAGS,
 };
 
@@ -64,19 +60,10 @@ 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);  }
 
-/* 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(FileMapped, FILE_MAPPED)
-CLEARPCGFLAG(FileMapped, FILE_MAPPED)
-TESTPCGFLAG(FileMapped, FILE_MAPPED)
-
 SETPCGFLAG(Migration, MIGRATION)
 CLEARPCGFLAG(Migration, MIGRATION)
 TESTPCGFLAG(Migration, MIGRATION)
@@ -85,7 +72,7 @@ static inline void lock_page_cgroup(struct page_cgroup *pc)
 {
         /*
          * Don't take this lock in IRQ context.
-         * This lock is for pc->mem_cgroup, USED, CACHE, MIGRATION
+         * This lock is for pc->mem_cgroup, USED, MIGRATION
          */
         bit_spin_lock(PCG_LOCK, &pc->flags);
 }
@@ -95,24 +82,6 @@ static inline void unlock_page_cgroup(struct page_cgroup *pc)
         bit_spin_unlock(PCG_LOCK, &pc->flags);
 }
 
-static inline void move_lock_page_cgroup(struct page_cgroup *pc,
-        unsigned long *flags)
-{
-        /*
-         * We know updates to pc->flags of page cache's stats are from both of
-         * usual context or IRQ context. Disable IRQ to avoid deadlock.
-         */
-        local_irq_save(*flags);
-        bit_spin_lock(PCG_MOVE_LOCK, &pc->flags);
-}
-
-static inline void move_unlock_page_cgroup(struct page_cgroup *pc,
-        unsigned long *flags)
-{
-        bit_spin_unlock(PCG_MOVE_LOCK, &pc->flags);
-        local_irq_restore(*flags);
-}
-
 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
 struct page_cgroup;