| commit | 85bac32c4a52c592b857f2c360cc5ec93a097d70 | [log] [tgz] |
|---|---|---|
| author | Steven Rostedt <srostedt@redhat.com> | Fri Sep 04 14:24:40 2009 -0400 |
| committer | Steven Rostedt <rostedt@goodmis.org> | Fri Sep 04 19:42:22 2009 -0400 |
| tree | 510e516dd5fa388cb9582a2f6b055f3725fbf2c1 | |
| parent | 62f0b3eb5cb58931a02ee4e599e19c80a171e351 [diff] |
ring-buffer: only enable ring_buffer_swap_cpu when needed Since the ability to swap the cpu buffers adds a small overhead to the recording of a trace, we only want to add it when needed. Only the irqsoff and preemptoff tracers use this feature, and both are not recommended for production kernels. This patch disables its use when neither irqsoff nor preemptoff is configured. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>