diff options
Diffstat (limited to 'include/linux/context_tracking.h')
| -rw-r--r-- | include/linux/context_tracking.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h index 37b81bd51ec0..2821838256b4 100644 --- a/include/linux/context_tracking.h +++ b/include/linux/context_tracking.h | |||
| @@ -10,6 +10,8 @@ | |||
| 10 | #ifdef CONFIG_CONTEXT_TRACKING | 10 | #ifdef CONFIG_CONTEXT_TRACKING |
| 11 | extern void context_tracking_cpu_set(int cpu); | 11 | extern void context_tracking_cpu_set(int cpu); |
| 12 | 12 | ||
| 13 | extern void context_tracking_enter(enum ctx_state state); | ||
| 14 | extern void context_tracking_exit(enum ctx_state state); | ||
| 13 | extern void context_tracking_user_enter(void); | 15 | extern void context_tracking_user_enter(void); |
| 14 | extern void context_tracking_user_exit(void); | 16 | extern void context_tracking_user_exit(void); |
| 15 | extern void __context_tracking_task_switch(struct task_struct *prev, | 17 | extern void __context_tracking_task_switch(struct task_struct *prev, |
| @@ -35,7 +37,8 @@ static inline enum ctx_state exception_enter(void) | |||
| 35 | return 0; | 37 | return 0; |
| 36 | 38 | ||
| 37 | prev_ctx = this_cpu_read(context_tracking.state); | 39 | prev_ctx = this_cpu_read(context_tracking.state); |
| 38 | context_tracking_user_exit(); | 40 | if (prev_ctx != CONTEXT_KERNEL) |
| 41 | context_tracking_exit(prev_ctx); | ||
| 39 | 42 | ||
| 40 | return prev_ctx; | 43 | return prev_ctx; |
| 41 | } | 44 | } |
| @@ -43,8 +46,8 @@ static inline enum ctx_state exception_enter(void) | |||
| 43 | static inline void exception_exit(enum ctx_state prev_ctx) | 46 | static inline void exception_exit(enum ctx_state prev_ctx) |
| 44 | { | 47 | { |
| 45 | if (context_tracking_is_enabled()) { | 48 | if (context_tracking_is_enabled()) { |
| 46 | if (prev_ctx == IN_USER) | 49 | if (prev_ctx != CONTEXT_KERNEL) |
| 47 | context_tracking_user_enter(); | 50 | context_tracking_enter(prev_ctx); |
| 48 | } | 51 | } |
| 49 | } | 52 | } |
| 50 | 53 | ||
| @@ -78,10 +81,16 @@ static inline void guest_enter(void) | |||
| 78 | vtime_guest_enter(current); | 81 | vtime_guest_enter(current); |
| 79 | else | 82 | else |
| 80 | current->flags |= PF_VCPU; | 83 | current->flags |= PF_VCPU; |
| 84 | |||
| 85 | if (context_tracking_is_enabled()) | ||
| 86 | context_tracking_enter(CONTEXT_GUEST); | ||
| 81 | } | 87 | } |
| 82 | 88 | ||
| 83 | static inline void guest_exit(void) | 89 | static inline void guest_exit(void) |
| 84 | { | 90 | { |
| 91 | if (context_tracking_is_enabled()) | ||
| 92 | context_tracking_exit(CONTEXT_GUEST); | ||
| 93 | |||
| 85 | if (vtime_accounting_enabled()) | 94 | if (vtime_accounting_enabled()) |
| 86 | vtime_guest_exit(current); | 95 | vtime_guest_exit(current); |
| 87 | else | 96 | else |
