fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / profile.h

diff --git a/include/linux/profile.h b/include/linux/profile.h
index a22f4a1..eec48f5 100644 (file)
--- a/include/linux/profile.h
+++ b/include/linux/profile.h
@@ -4,21 +4,44 @@
 #ifdef __KERNEL__
 
 #include <linux/kernel.h>
-#include <linux/config.h>
 #include <linux/init.h>
 #include <linux/cpumask.h>
+#include <linux/cache.h>
+
 #include <asm/errno.h>
 
+extern int prof_on __read_mostly;
+
 #define CPU_PROFILING  1
 #define SCHED_PROFILING        2
+#define SLEEP_PROFILING        3
+#define KVM_PROFILING  4
 
 struct proc_dir_entry;
 struct pt_regs;
+struct notifier_block;
 
 /* init basic kernel profiler */
 void __init profile_init(void);
-void profile_tick(int, struct pt_regs *);
-void profile_hit(int, void *);
+void profile_tick(int);
+
+/*
+ * Add multiple profiler hits to a given address:
+ */
+void profile_hits(int, void *ip, unsigned int nr_hits);
+
+/*
+ * Single profiler hit:
+ */
+static inline void profile_hit(int type, void *ip)
+{
+       /*
+        * Speedup for the common (no profiling enabled) case:
+        */
+       if (unlikely(prof_on == type))
+               profile_hits(type, ip, 1);
+}
+
 #ifdef CONFIG_PROC_FS
 void create_prof_cpu_mask(struct proc_dir_entry *);
 #else
@@ -32,7 +55,6 @@ enum profile_type {
 
 #ifdef CONFIG_PROFILING
 
-struct notifier_block;
 struct task_struct;
 struct mm_struct;
 
@@ -53,13 +75,13 @@ int task_handoff_unregister(struct notifier_block * n);
 int profile_event_register(enum profile_type, struct notifier_block * n);
 int profile_event_unregister(enum profile_type, struct notifier_block * n);
 
-int register_profile_notifier(struct notifier_block * nb);
-int unregister_profile_notifier(struct notifier_block * nb);
+int register_timer_hook(int (*hook)(struct pt_regs *));
+void unregister_timer_hook(int (*hook)(struct pt_regs *));
 
-struct pt_regs;
+/* Timer based profiling hook */
+extern int (*timer_hook)(struct pt_regs *);
 
-/* profiling hook activated on each timer interrupt */
-void profile_hook(struct pt_regs * regs);
+struct pt_regs;
 
 #else
 
@@ -87,18 +109,16 @@ static inline int profile_event_unregister(enum profile_type t, struct notifier_
 #define profile_handoff_task(a) (0)
 #define profile_munmap(a) do { } while (0)
 
-static inline int register_profile_notifier(struct notifier_block * nb)
+static inline int register_timer_hook(int (*hook)(struct pt_regs *))
 {
        return -ENOSYS;
 }
 
-static inline int unregister_profile_notifier(struct notifier_block * nb)
+static inline void unregister_timer_hook(int (*hook)(struct pt_regs *))
 {
-       return -ENOSYS;
+       return;
 }
 
-#define profile_hook(regs) do { } while (0)
-
 #endif /* CONFIG_PROFILING */
 
 #endif /* __KERNEL__ */