diff options
| author | Steven Rostedt <srostedt@redhat.com> | 2009-03-11 14:33:00 -0400 |
|---|---|---|
| committer | Steven Rostedt <srostedt@redhat.com> | 2009-03-11 22:15:24 -0400 |
| commit | 1852fcce181faa237c010a3dbedb473cf9d4555f (patch) | |
| tree | 863cd12b573fd36436e7fb042f9bd96a73a9f725 /kernel/trace/trace.h | |
| parent | 73c5162aa362a543793f4a957c6c536dcbaa89ce (diff) | |
tracing: expand the ring buffers when an event is activated
To save memory, the tracer ring buffers are set to a minimum.
The activating of a trace expands the ring buffer size. This patch
adds this expanding, when an event is activated.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index c5e1d8865fe..336324d717f 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -737,6 +737,9 @@ static inline void trace_branch_disable(void) } #endif /* CONFIG_BRANCH_TRACER */ +/* set ring buffers to default size if not already done so */ +int tracing_update_buffers(void); + /* trace event type bit fields, not numeric */ enum { TRACE_EVENT_TYPE_PRINTF = 1, |