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-rw-r--r--include/linux/context_tracking.h15
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
11extern void context_tracking_cpu_set(int cpu); 11extern void context_tracking_cpu_set(int cpu);
12 12
13extern void context_tracking_enter(enum ctx_state state);
14extern void context_tracking_exit(enum ctx_state state);
13extern void context_tracking_user_enter(void); 15extern void context_tracking_user_enter(void);
14extern void context_tracking_user_exit(void); 16extern void context_tracking_user_exit(void);
15extern void __context_tracking_task_switch(struct task_struct *prev, 17extern 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)
43static inline void exception_exit(enum ctx_state prev_ctx) 46static 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
83static inline void guest_exit(void) 89static 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