1 files changed, 43 insertions, 18 deletions

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 4ec5e67e18cf..c0f4b364c711 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -5,6 +5,7 @@
 #include <linux/trace_seq.h>
 #include <linux/percpu.h>
 #include <linux/hardirq.h>
+#include <linux/perf_event.h>
 
 struct trace_array;
 struct tracer;
@@ -57,6 +58,7 @@ struct trace_iterator {
         /* The below is zeroed out in pipe_read */
         struct trace_seq        seq;
         struct trace_entry      *ent;
+        int                     leftover;
         int                     cpu;
         u64                     ts;
 
@@ -117,12 +119,11 @@ struct ftrace_event_call {
         struct dentry           *dir;
         struct trace_event      *event;
         int                     enabled;
-        int                     (*regfunc)(void *);
-        void                    (*unregfunc)(void *);
+        int                     (*regfunc)(struct ftrace_event_call *);
+        void                    (*unregfunc)(struct ftrace_event_call *);
         int                     id;
-        int                     (*raw_init)(void);
-        int                     (*show_format)(struct ftrace_event_call *call,
-                                               struct trace_seq *s);
+        const char              *print_fmt;
+        int                     (*raw_init)(struct ftrace_event_call *);
         int                     (*define_fields)(struct ftrace_event_call *);
         struct list_head        fields;
         int                     filter_active;
@@ -130,21 +131,18 @@ struct ftrace_event_call {
         void                    *mod;
         void                    *data;
 
-        atomic_t                profile_count;
-        int                     (*profile_enable)(void);
-        void                    (*profile_disable)(void);
+        int                     perf_refcount;
+        int                     (*perf_event_enable)(struct ftrace_event_call *);
+        void                    (*perf_event_disable)(struct ftrace_event_call *);
 };
 
-#define FTRACE_MAX_PROFILE_SIZE 2048
-
-extern char                     *trace_profile_buf;
-extern char                     *trace_profile_buf_nmi;
+#define PERF_MAX_TRACE_SIZE     2048
 
 #define MAX_FILTER_PRED         32
 #define MAX_FILTER_STR_VAL      256     /* Should handle KSYM_SYMBOL_LEN */
 
 extern void destroy_preds(struct ftrace_event_call *call);
-extern int filter_match_preds(struct ftrace_event_call *call, void *rec);
+extern int filter_match_preds(struct event_filter *filter, void *rec);
 extern int filter_current_check_discard(struct ring_buffer *buffer,
                                         struct ftrace_event_call *call,
                                         void *rec,
@@ -157,11 +155,12 @@ enum {
         FILTER_PTR_STRING,
 };
 
-extern int trace_define_field(struct ftrace_event_call *call,
-                              const char *type, const char *name,
-                              int offset, int size, int is_signed,
-                              int filter_type);
-extern int trace_define_common_fields(struct ftrace_event_call *call);
+extern int trace_event_raw_init(struct ftrace_event_call *call);
+extern int trace_define_field(struct ftrace_event_call *call, const char *type,
+                              const char *name, int offset, int size,
+                              int is_signed, int filter_type);
+extern int trace_add_event_call(struct ftrace_event_call *call);
+extern void trace_remove_event_call(struct ftrace_event_call *call);
 
 #define is_signed_type(type)    (((type)(-1)) < 0)
 
@@ -186,4 +185,30 @@ do {									\
                 __trace_printk(ip, fmt, ##args);                        \
 } while (0)
 
+#ifdef CONFIG_PERF_EVENTS
+struct perf_event;
+
+DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
+
+extern int perf_trace_enable(int event_id);
+extern void perf_trace_disable(int event_id);
+extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
+                                     char *filter_str);
+extern void ftrace_profile_free_filter(struct perf_event *event);
+extern void *
+perf_trace_buf_prepare(int size, unsigned short type, int *rctxp,
+                         unsigned long *irq_flags);
+
+static inline void
+perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
+                       u64 count, unsigned long irq_flags, struct pt_regs *regs)
+{
+        struct trace_entry *entry = raw_data;
+
+        perf_tp_event(entry->type, addr, count, raw_data, size, regs);
+        perf_swevent_put_recursion_context(rctx);
+        local_irq_restore(irq_flags);
+}
+#endif
+
 #endif /* _LINUX_FTRACE_EVENT_H */