diff options
Diffstat (limited to 'include/linux/context_tracking.h')
| -rw-r--r-- | include/linux/context_tracking.h | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index e070ea5dadac..82ec4870e064 100644 --- 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; } |