From ca3b162021a421b38a9cd7b66555b9b01568dc9d Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Fri, 17 Jan 2014 17:08:39 +0900 Subject: [PATCH] tracing/uprobes: Support event triggering Add support for event triggering to uprobes. This is same as kprobes support added by Tom (plus cleanup by Steven). Link: http://lkml.kernel.org/r/1389946120-19610-5-git-send-email-namhyung@kernel.org Reviewed-by: Masami Hiramatsu Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Oleg Nesterov Cc: Srikar Dronamraju Cc: zhangwei(Jovi) Cc: Tom Zanussi Signed-off-by: Namhyung Kim Signed-off-by: Steven Rostedt --- kernel/trace/trace_uprobe.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index 349c6df9e33..01fcb0db75c 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -776,6 +776,9 @@ static void __uprobe_trace_func(struct trace_uprobe *tu, if (WARN_ON_ONCE(tu->tp.size + dsize > PAGE_SIZE)) return; + if (ftrace_trigger_soft_disabled(ftrace_file)) + return; + esize = SIZEOF_TRACE_ENTRY(is_ret_probe(tu)); size = esize + tu->tp.size + dsize; event = trace_event_buffer_lock_reserve(&buffer, ftrace_file, @@ -795,8 +798,7 @@ static void __uprobe_trace_func(struct trace_uprobe *tu, memcpy(data, ucb->buf, tu->tp.size + dsize); - if (!call_filter_check_discard(call, entry, buffer, event)) - trace_buffer_unlock_commit(buffer, event, 0, 0); + event_trigger_unlock_commit(ftrace_file, buffer, event, entry, 0, 0); } /* uprobe handler */ -- 2.41.0