+/* Disable page statistic by default due to huge performance penalty. */
+#ifdef CONFIG_DEBUG_PAGESTATE_TRACKING
+#define CS_PAGE_INC(o, item) \
+ cfs_atomic_inc(&cl_object_site(o)->cs_pages.cs_stats[CS_##item])
+#define CS_PAGE_DEC(o, item) \
+ cfs_atomic_dec(&cl_object_site(o)->cs_pages.cs_stats[CS_##item])
+#define CS_PAGESTATE_INC(o, state) \
+ cfs_atomic_inc(&cl_object_site(o)->cs_pages_state[state])
+#define CS_PAGESTATE_DEC(o, state) \
+ cfs_atomic_dec(&cl_object_site(o)->cs_pages_state[state])
+#else
+#define CS_PAGE_INC(o, item)
+#define CS_PAGE_DEC(o, item)
+#define CS_PAGESTATE_INC(o, state)
+#define CS_PAGESTATE_DEC(o, state)
+#endif
+