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| author |   Steven Rostedt <srostedt@redhat.com> | 2009-09-04 12:12:39 -0400 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2009-09-04 12:12:39 -0400 |
| commit | 76f0d07376388f32698ba51b6090a26b90c1342f (patch) | |
| tree | ea3a2576e7d2ae85d610aa088cb05986a13f03b1 /kernel/trace/trace_power.c | |
| parent | tracing: disable buffers and synchronize_sched before resetting (diff) | |
| download | linux-dev-76f0d07376388f32698ba51b6090a26b90c1342f.tar.xz linux-dev-76f0d07376388f32698ba51b6090a26b90c1342f.zip | |
tracing: remove users of tracing_reset
The function tracing_reset is deprecated for outside use of trace.c.
The new function to reset the the buffers is tracing_reset_online_cpus.
The reason for this is that resetting the buffers while the event
trace points are active can corrupt the buffers, because they may
be writing at the time of reset. The tracing_reset_online_cpus disables
writes and waits for current writers to finish.
This patch replaces all users of tracing_reset except for the latency
tracers. Those changes require more work and will be removed in the
following patches.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_power.c')
| -rw-r--r-- | kernel/trace/trace_power.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/trace/trace_power.c b/kernel/trace/trace_power.c index 8a30d9874cd4..a5d5a4f7745b 100644 --- a/kernel/trace/trace_power.c +++ b/kernel/trace/trace_power.c @@ -144,14 +144,12 @@ static void power_trace_reset(struct trace_array *tr) static int power_trace_init(struct trace_array *tr) { - int cpu; power_trace = tr; trace_power_enabled = 1; tracing_power_register(); - for_each_cpu(cpu, cpu_possible_mask) - tracing_reset(tr, cpu); + tracing_reset_online_cpus(tr); return 0; } |