1 files changed, 20 insertions, 16 deletions

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 742fe1349276..94ed45e93a80 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -17,7 +17,6 @@ enum trace_type {
         TRACE_FN,
         TRACE_CTX,
         TRACE_WAKE,
-        TRACE_CONT,
         TRACE_STACK,
         TRACE_PRINT,
         TRACE_SPECIAL,
@@ -34,7 +33,7 @@ enum trace_type {
         TRACE_KMEM_FREE,
         TRACE_POWER,
 
-        __TRACE_LAST_TYPE
+        __TRACE_LAST_TYPE,
 };
 
 /*
@@ -199,7 +198,6 @@ struct kmemtrace_free_entry {
  *  NEED_RESCED         - reschedule is requested
  *  HARDIRQ             - inside an interrupt handler
  *  SOFTIRQ             - inside a softirq handler
- *  CONT                - multiple entries hold the trace item
  */
 enum trace_flag_type {
         TRACE_FLAG_IRQS_OFF             = 0x01,
@@ -207,7 +205,6 @@ enum trace_flag_type {
         TRACE_FLAG_NEED_RESCHED         = 0x04,
         TRACE_FLAG_HARDIRQ              = 0x08,
         TRACE_FLAG_SOFTIRQ              = 0x10,
-        TRACE_FLAG_CONT                 = 0x20,
 };
 
 #define TRACE_BUF_SIZE          1024
@@ -283,7 +280,6 @@ extern void __ftrace_bad_type(void);
         do {                                                            \
                 IF_ASSIGN(var, ent, struct ftrace_entry, TRACE_FN);     \
                 IF_ASSIGN(var, ent, struct ctx_switch_entry, 0);        \
-                IF_ASSIGN(var, ent, struct trace_field_cont, TRACE_CONT); \
                 IF_ASSIGN(var, ent, struct stack_entry, TRACE_STACK);   \
                 IF_ASSIGN(var, ent, struct userstack_entry, TRACE_USER_STACK);\
                 IF_ASSIGN(var, ent, struct print_entry, TRACE_PRINT);   \
@@ -365,6 +361,21 @@ struct tracer {
         struct tracer           *next;
         int                     print_max;
         struct tracer_flags     *flags;
+
+        /*
+         * If you change one of the following on tracing runtime, recall
+         * init_tracer_stat()
+         */
+
+        /* Iteration over statistic entries */
+        void                    *(*stat_start)(void);
+        void                    *(*stat_next)(void *prev, int idx);
+        /* Compare two entries for sorting (optional) for stats */
+        int                     (*stat_cmp)(void *p1, void *p2);
+        /* Print a stat entry */
+        int                     (*stat_show)(struct seq_file *s, void *p);
+        /* Print the headers of your stat entries */
+        int                     (*stat_headers)(struct seq_file *s);
 };
 
 struct trace_seq {
@@ -450,6 +461,8 @@ void tracing_start_sched_switch_record(void);
 int register_tracer(struct tracer *type);
 void unregister_tracer(struct tracer *type);
 
+void init_tracer_stat(struct tracer *trace);
+
 extern unsigned long nsecs_to_usecs(unsigned long nsecs);
 
 extern unsigned long tracing_max_latency;
@@ -481,10 +494,10 @@ struct tracer_switch_ops {
         void                            *private;
         struct tracer_switch_ops        *next;
 };
-
-char *trace_find_cmdline(int pid);
 #endif /* CONFIG_CONTEXT_SWITCH_TRACER */
 
+extern char *trace_find_cmdline(int pid);
+
 #ifdef CONFIG_DYNAMIC_FTRACE
 extern unsigned long ftrace_update_tot_cnt;
 #define DYN_FTRACE_TEST_NAME trace_selftest_dynamic_test_func
@@ -513,15 +526,6 @@ extern int trace_selftest_startup_branch(struct tracer *trace,
 #endif /* CONFIG_FTRACE_STARTUP_TEST */
 
 extern void *head_page(struct trace_array_cpu *data);
-extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
-extern void trace_seq_print_cont(struct trace_seq *s,
-                                 struct trace_iterator *iter);
-
-extern int
-seq_print_ip_sym(struct trace_seq *s, unsigned long ip,
-                unsigned long sym_flags);
-extern ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf,
-                                 size_t cnt);
 extern long ns2usecs(cycle_t nsec);
 extern int
 trace_vprintk(unsigned long ip, int depth, const char *fmt, va_list args);