Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

[linux-2.6] / include / linux / vmstat.h

diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index 7ba91f2839fa153f092a4ebb395c33a82628f7a8..d9325cf8a1342476c3989e791167d86f54a418e7 100644 (file)
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -7,18 +7,6 @@
 #include <linux/mmzone.h>
 #include <asm/atomic.h>
 
-#ifdef CONFIG_VM_EVENT_COUNTERS
-/*
- * Light weight per cpu counter implementation.
- *
- * Counters should only be incremented.  You need to set EMBEDDED
- * to disable VM_EVENT_COUNTERS.  Things like procps (vmstat,
- * top, etc) use /proc/vmstat and depend on these counters.
- *
- * Counters are handled completely inline. On many platforms the code
- * generated will simply be the increment of a global address.
- */
-
 #ifdef CONFIG_ZONE_DMA
 #define DMA_ZONE(xx) xx##_DMA,
 #else
@@ -52,6 +40,17 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
                NR_VM_EVENT_ITEMS
 };
 
+#ifdef CONFIG_VM_EVENT_COUNTERS
+/*
+ * Light weight per cpu counter implementation.
+ *
+ * Counters should only be incremented and no critical kernel component
+ * should rely on the counter values.
+ *
+ * Counters are handled completely inline. On many platforms the code
+ * generated will simply be the increment of a global address.
+ */
+
 struct vm_event_state {
        unsigned long event[NR_VM_EVENT_ITEMS];
 };
@@ -92,12 +91,24 @@ static inline void vm_events_fold_cpu(int cpu)
 #else
 
 /* Disable counters */
-#define get_cpu_vm_events(e)   0L
-#define count_vm_event(e)      do { } while (0)
-#define count_vm_events(e,d)   do { } while (0)
-#define __count_vm_event(e)    do { } while (0)
-#define __count_vm_events(e,d) do { } while (0)
-#define vm_events_fold_cpu(x)  do { } while (0)
+static inline void count_vm_event(enum vm_event_item item)
+{
+}
+static inline void count_vm_events(enum vm_event_item item, long delta)
+{
+}
+static inline void __count_vm_event(enum vm_event_item item)
+{
+}
+static inline void __count_vm_events(enum vm_event_item item, long delta)
+{
+}
+static inline void all_vm_events(unsigned long *ret)
+{
+}
+static inline void vm_events_fold_cpu(int cpu)
+{
+}
 
 #endif /* CONFIG_VM_EVENT_COUNTERS */
 
@@ -201,8 +212,6 @@ extern void dec_zone_state(struct zone *, enum zone_stat_item);
 extern void __dec_zone_state(struct zone *, enum zone_stat_item);
 
 void refresh_cpu_vm_stats(int);
-void refresh_vm_stats(void);
-
 #else /* CONFIG_SMP */
 
 /*
@@ -249,7 +258,6 @@ static inline void __dec_zone_page_state(struct page *page,
 #define mod_zone_page_state __mod_zone_page_state
 
 static inline void refresh_cpu_vm_stats(int cpu) { }
-static inline void refresh_vm_stats(void) { }
 #endif
 
 #endif /* _LINUX_VMSTAT_H */