tracing: Add trace_total_entries() / trace_total_entries_cpu()

[linux.git] / kernel / trace / trace.h

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d80cee49e0eb4e39afb0127a4541411334e0d285..33f14b9e78b7f830e0d5635b775162f11ec31c01 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -293,11 +293,13 @@ struct trace_array {
        int                     nr_topts;
        bool                    clear_trace;
        int                     buffer_percent;
+       unsigned int            n_err_log_entries;
        struct tracer           *current_trace;
        unsigned int            trace_flags;
        unsigned char           trace_flags_index[TRACE_FLAGS_MAX_SIZE];
        unsigned int            flags;
        raw_spinlock_t          start_lock;
+       struct list_head        err_log;
        struct dentry           *dir;
        struct dentry           *options;
        struct dentry           *percpu_dir;
@@ -719,6 +721,9 @@ void trace_init_global_iter(struct trace_iterator *iter);
 
 void tracing_iter_reset(struct trace_iterator *iter, int cpu);
 
+unsigned long trace_total_entries_cpu(struct trace_array *tr, int cpu);
+unsigned long trace_total_entries(struct trace_array *tr);
+
 void trace_function(struct trace_array *tr,
                    unsigned long ip,
                    unsigned long parent_ip,
@@ -1553,7 +1558,8 @@ extern int apply_subsystem_event_filter(struct trace_subsystem_dir *dir,
 extern void print_subsystem_event_filter(struct event_subsystem *system,
                                         struct trace_seq *s);
 extern int filter_assign_type(const char *type);
-extern int create_event_filter(struct trace_event_call *call,
+extern int create_event_filter(struct trace_array *tr,
+                              struct trace_event_call *call,
                               char *filter_str, bool set_str,
                               struct event_filter **filterp);
 extern void free_event_filter(struct event_filter *filter);
@@ -1884,6 +1890,11 @@ extern ssize_t trace_parse_run_command(struct file *file,
                const char __user *buffer, size_t count, loff_t *ppos,
                int (*createfn)(int, char**));
 
+extern unsigned int err_pos(char *cmd, const char *str);
+extern void tracing_log_err(struct trace_array *tr,
+                           const char *loc, const char *cmd,
+                           const char **errs, u8 type, u8 pos);
+
 /*
  * Normal trace_printk() and friends allocates special buffers
  * to do the manipulation, as well as saves the print formats