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| author | Masami Hiramatsu <mhiramat@kernel.org> | 2020-01-11 01:05:18 +0900 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2020-01-13 13:19:40 -0500 |
| commit | d8d0c245a7fdd176e2cf6317b3fddda650059d06 (patch) | |
| tree | a25ca7ba1edcd38ac31b64732749a38f6fc3ce53 | |
| parent | 7b9b816f4b9a3513602454b52c77f371388a2485 (diff) | |
| download | linux-d8d0c245a7fdd176e2cf6317b3fddda650059d06.tar.gz linux-d8d0c245a7fdd176e2cf6317b3fddda650059d06.tar.bz2 linux-d8d0c245a7fdd176e2cf6317b3fddda650059d06.zip | |
tracing: Apply soft-disabled and filter to tracepoints printk
Apply soft-disabled and the filter rule of the trace events to
the printk output of tracepoints (a.k.a. tp_printk kernel parameter)
as same as trace buffer output.
Link: http://lkml.kernel.org/r/157867231876.17873.15825819592284704068.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
| -rw-r--r-- | kernel/trace/trace.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index b4a07d7ed82a..b4294eb020f8 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2610,6 +2610,7 @@ static DEFINE_MUTEX(tracepoint_printk_mutex); static void output_printk(struct trace_event_buffer *fbuffer) { struct trace_event_call *event_call; + struct trace_event_file *file; struct trace_event *event; unsigned long flags; struct trace_iterator *iter = tracepoint_print_iter; @@ -2623,6 +2624,12 @@ static void output_printk(struct trace_event_buffer *fbuffer) !event_call->event.funcs->trace) return; + file = fbuffer->trace_file; + if (test_bit(EVENT_FILE_FL_SOFT_DISABLED_BIT, &file->flags) || + (unlikely(file->flags & EVENT_FILE_FL_FILTERED) && + !filter_match_preds(file->filter, fbuffer->entry))) + return; + event = &fbuffer->trace_file->event_call->event; spin_lock_irqsave(&tracepoint_iter_lock, flags); |