diff options
| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-01-10 16:17:45 -0500 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-02-20 12:29:07 -0500 |
| commit | 591dffdade9f07692a7dd3ed16830ec24e901ece (patch) | |
| tree | 6f7b2702ef573fe393094bbf05625a00bb1410e4 /kernel/trace/trace.c | |
| parent | e3b3e2e847080e3cc14bee778c6ced3d59bfd76c (diff) | |
ftrace: Allow for function tracing instance to filter functions
Create a "set_ftrace_filter" and "set_ftrace_notrace" files in the instance
directories to let users filter of functions to trace for the given instance.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace.c')
| -rw-r--r-- | kernel/trace/trace.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index f9f22c435036..d95ec2876bbb 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -6161,6 +6161,7 @@ static int instance_delete(const char *name) tracing_set_nop(tr); event_trace_del_tracer(tr); + ftrace_destroy_function_files(tr); debugfs_remove_recursive(tr->dir); free_percpu(tr->trace_buffer.data); ring_buffer_free(tr->trace_buffer.buffer); @@ -6291,6 +6292,9 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) trace_create_file("tracing_on", 0644, d_tracer, tr, &rb_simple_fops); + if (ftrace_create_function_files(tr, d_tracer)) + WARN(1, "Could not allocate function filter files"); + #ifdef CONFIG_TRACER_SNAPSHOT trace_create_file("snapshot", 0644, d_tracer, tr, &snapshot_fops); |