tracing/kprobes: Fix to increment return event probe hit-count
authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Thu, 9 May 2013 05:44:24 +0000 (14:44 +0900)
committerSteven Rostedt <rostedt@goodmis.org>
Fri, 10 May 2013 00:13:51 +0000 (20:13 -0400)
Fix to increment probe hit-count for function return event.

Link: http://lkml.kernel.org/r/20130509054424.30398.34058.stgit@mhiramat-M0-7522
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Tom Zanussi <tom.zanussi@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
kernel/trace/trace_kprobe.c

index 1865d5f..6928633 100644 (file)
@@ -767,6 +767,8 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri,
        unsigned long irq_flags;
        struct ftrace_event_call *call = &tp->call;
 
+       tp->nhit++;
+
        local_save_flags(irq_flags);
        pc = preempt_count();