context_tracking: Split low level state headers

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

diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index e070ea5..82ec487 100644 (file)
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -2,40 +2,12 @@
 #define _LINUX_CONTEXT_TRACKING_H
 
 #include <linux/sched.h>
-#include <linux/percpu.h>
 #include <linux/vtime.h>
-#include <linux/static_key.h>
+#include <linux/context_tracking_state.h>
 #include <asm/ptrace.h>
 
-struct context_tracking {
-       /*
-        * When active is false, probes are unset in order
-        * to minimize overhead: TIF flags are cleared
-        * and calls to user_enter/exit are ignored. This
-        * may be further optimized using static keys.
-        */
-       bool active;
-       enum ctx_state {
-               IN_KERNEL = 0,
-               IN_USER,
-       } state;
-};
-
 
 #ifdef CONFIG_CONTEXT_TRACKING
-extern struct static_key context_tracking_enabled;
-DECLARE_PER_CPU(struct context_tracking, context_tracking);
-
-static inline bool context_tracking_in_user(void)
-{
-       return __this_cpu_read(context_tracking.state) == IN_USER;
-}
-
-static inline bool context_tracking_active(void)
-{
-       return __this_cpu_read(context_tracking.active);
-}
-
 extern void context_tracking_cpu_set(int cpu);
 
 extern void context_tracking_user_enter(void);
@@ -83,7 +55,6 @@ static inline void context_tracking_task_switch(struct task_struct *prev,
                __context_tracking_task_switch(prev, next);
 }
 #else
-static inline bool context_tracking_in_user(void) { return false; }
 static inline void user_enter(void) { }
 static inline void user_exit(void) { }
 static inline enum ctx_state exception_enter(void) { return 0; }