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| author | Steven Rostedt (Red Hat) <srostedt@redhat.com> | 2013-03-05 05:26:06 +0100 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-03-15 05:34:57 +0100 |
| commit | 873c642f5964b260480850040dec21e42d0ae4e4 (patch) | |
| tree | f240e11becc378584fe3892394d735e6bb865ac7 /kernel/trace/trace.c | |
| parent | tracing: Only clear trace buffer on module unload if event was traced (diff) | |
| download | linux-873c642f5964b260480850040dec21e42d0ae4e4.tar.xz linux-873c642f5964b260480850040dec21e42d0ae4e4.zip | |
tracing: Clear all trace buffers when unloaded module event was used
Currently we do not know what buffer a module event was enabled in.
On unload, it is safest to clear all buffer instances, not just the
top level buffer.
Todo: Clear only the buffer that the event was used in. The
infrastructure is there to do this, but it makes the code a bit
more complex. Lets get the current code vetted before we add that.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index b5b25b6575a9..c8a852a55db4 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -912,9 +912,15 @@ void tracing_reset_current(int cpu) tracing_reset(&global_trace, cpu); } -void tracing_reset_current_online_cpus(void) +void tracing_reset_all_online_cpus(void) { - tracing_reset_online_cpus(&global_trace); + struct trace_array *tr; + + mutex_lock(&trace_types_lock); + list_for_each_entry(tr, &ftrace_trace_arrays, list) { + tracing_reset_online_cpus(tr); + } + mutex_unlock(&trace_types_lock); } #define SAVED_CMDLINES 128 |