tracing: Add percpu buffers for trace_printk()

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

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 54faec790bc18c53ddcc40df65640d340d2f01d3..f9d85504f04bcc24b16ccf55f8b2d7e38ab723e3 100644 (file)
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -154,6 +154,7 @@ struct trace_array {
        struct ring_buffer      *buffer;
        unsigned long           entries;
        int                     cpu;
+       int                     buffer_disabled;
        cycle_t                 time_start;
        struct task_struct      *waiter;
        struct trace_array_cpu  *data[NR_CPUS];
@@ -825,6 +826,8 @@ extern struct list_head ftrace_events;
 extern const char *__start___trace_bprintk_fmt[];
 extern const char *__stop___trace_bprintk_fmt[];
 
+void trace_printk_init_buffers(void);
+
 #undef FTRACE_ENTRY
 #define FTRACE_ENTRY(call, struct_name, id, tstruct, print, filter)    \
        extern struct ftrace_event_call                                 \
@@ -835,13 +838,11 @@ extern const char *__stop___trace_bprintk_fmt[];
                     filter)
 #include "trace_entries.h"
 
-#ifdef CONFIG_PERF_EVENTS
 #ifdef CONFIG_FUNCTION_TRACER
 int perf_ftrace_event_register(struct ftrace_event_call *call,
                               enum trace_reg type, void *data);
 #else
 #define perf_ftrace_event_register NULL
 #endif /* CONFIG_FUNCTION_TRACER */
-#endif /* CONFIG_PERF_EVENTS */
 
 #endif /* _LINUX_KERNEL_TRACE_H */