diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2009-06-25 14:30:12 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-06-25 10:31:30 +0200 |
| commit | 1155de47cd66d0c496d5a6fb2223e980ef1285b2 (patch) | |
| tree | 0ee762d6b1215a37fe89acc174de8cbbf476d218 /kernel/trace/trace.h | |
| parent | 00e54d087afb3867b0b461aef6c1ff433d0df564 (diff) | |
ring-buffer: Make it generally available
In hunting down the cause for the hwlat_detector ring buffer spew in
my failed -next builds it became obvious that folks are now treating
ring_buffer as something that is generic independent of tracing and thus,
suitable for public driver consumption.
Given that there are only a few minor areas in ring_buffer that have any
reliance on CONFIG_TRACING or CONFIG_FUNCTION_TRACER, provide stubs for
those and make it generally available.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Cc: Jon Masters <jcm@jonmasters.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <20090625053012.GB19944@linux-sh.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 6e735d4771f..3548ae5cc78 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -597,6 +597,7 @@ print_graph_function(struct trace_iterator *iter) extern struct pid *ftrace_pid_trace; +#ifdef CONFIG_FUNCTION_TRACER static inline int ftrace_trace_task(struct task_struct *task) { if (!ftrace_pid_trace) @@ -604,6 +605,12 @@ static inline int ftrace_trace_task(struct task_struct *task) return test_tsk_trace_trace(task); } +#else +static inline int ftrace_trace_task(struct task_struct *task) +{ + return 1; +} +#endif /* * trace_iterator_flags is an enumeration that defines bit |