perf_counter: unify and fix delayed counter wakeup

[GitHub/LineageOS/android_kernel_samsung_universal7580.git] / include / linux / perf_counter.h

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 6bf67ce17625990f46a6248ae8c4164874ac11da..0d833228eee5a6b307c7beecb3d5bcfef072fdb8 100644 (file)
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -275,6 +275,10 @@ struct perf_mmap_data {
        void                            *data_pages[0];
 };
 
+struct perf_wakeup_entry {
+       struct perf_wakeup_entry *next;
+};
+
 /**
  * struct perf_counter - performance counter kernel representation:
  */
@@ -350,7 +354,7 @@ struct perf_counter {
        /* poll related */
        wait_queue_head_t               waitq;
        /* optional: for NMIs */
-       int                             wakeup_pending;
+       struct perf_wakeup_entry        wakeup;
 
        void (*destroy)(struct perf_counter *);
        struct rcu_head                 rcu_head;
@@ -427,7 +431,7 @@ extern void perf_counter_task_sched_out(struct task_struct *task, int cpu);
 extern void perf_counter_task_tick(struct task_struct *task, int cpu);
 extern void perf_counter_init_task(struct task_struct *child);
 extern void perf_counter_exit_task(struct task_struct *child);
-extern void perf_counter_notify(struct pt_regs *regs);
+extern void perf_counter_do_pending(void);
 extern void perf_counter_print_debug(void);
 extern void perf_counter_unthrottle(void);
 extern u64 hw_perf_save_disable(void);
@@ -461,7 +465,7 @@ static inline void
 perf_counter_task_tick(struct task_struct *task, int cpu)              { }
 static inline void perf_counter_init_task(struct task_struct *child)   { }
 static inline void perf_counter_exit_task(struct task_struct *child)   { }
-static inline void perf_counter_notify(struct pt_regs *regs)           { }
+static inline void perf_counter_do_pending(void)                       { }
 static inline void perf_counter_print_debug(void)                      { }
 static inline void perf_counter_unthrottle(void)                       { }
 static inline void hw_perf_restore(u64 ctrl)                           { }
@@ -469,8 +473,9 @@ static inline u64 hw_perf_save_disable(void)                      { return 0; }
 static inline int perf_counter_task_disable(void)      { return -EINVAL; }
 static inline int perf_counter_task_enable(void)       { return -EINVAL; }
 
-static inline void perf_swcounter_event(u32 event, u64 nr,
-                                       int nmi, struct pt_regs *regs)  { }
+static inline void
+perf_swcounter_event(u32 event, u64 nr, int nmi, struct pt_regs *regs) { }
+
 #endif
 
 #endif /* __KERNEL__ */