diff options
| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-01-14 17:33:33 (GMT) |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-02-20 17:13:11 (GMT) |
| commit | f1b21c9a40704dfdf7b8423c7d2969ea31c9857d (patch) | |
| tree | 6dcba7a8b72290fb91f855b950fcf4338f1711b2 /kernel/trace/trace.c | |
| parent | 607e2ea167e56db84387f3ab97e59a862e101cab (diff) | |
| download | linux-f1b21c9a40704dfdf7b8423c7d2969ea31c9857d.tar.xz | |
tracing: Only let top level have option files
Currently, only the top level instance can have tracing options.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 944cd02..da9543c 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3968,9 +3968,11 @@ static int tracing_set_tracer(struct trace_array *tr, const char *buf) free_snapshot(tr); } #endif - destroy_trace_option_files(topts); - - topts = create_trace_option_files(tr, t); + /* Currently, only the top instance has options */ + if (tr->flags & TRACE_ARRAY_FL_GLOBAL) { + destroy_trace_option_files(topts); + topts = create_trace_option_files(tr, t); + } #ifdef CONFIG_TRACER_MAX_TRACE if (t->use_max_tr && !had_max_tr) { |