tracing/kprobes: Increment probe hit-count even if it is used by perf
Increment probe hit-count for profiling even if it is used
by perf tool. Same thing has already done in trace_uprobe.
Link: http://lkml.kernel.org/r/20130509054436.30398.21133.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>
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 0b7386a..6e86fbb 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -733,8 +733,6 @@
unsigned long irq_flags;
struct ftrace_event_call *call = &tp->call;
- tp->nhit++;
-
local_save_flags(irq_flags);
pc = preempt_count();
@@ -767,8 +765,6 @@
unsigned long irq_flags;
struct ftrace_event_call *call = &tp->call;
- tp->nhit++;
-
local_save_flags(irq_flags);
pc = preempt_count();
@@ -1075,6 +1071,8 @@
{
struct trace_probe *tp = container_of(kp, struct trace_probe, rp.kp);
+ tp->nhit++;
+
if (tp->flags & TP_FLAG_TRACE)
kprobe_trace_func(kp, regs);
#ifdef CONFIG_PERF_EVENTS
@@ -1089,6 +1087,8 @@
{
struct trace_probe *tp = container_of(ri->rp, struct trace_probe, rp);
+ tp->nhit++;
+
if (tp->flags & TP_FLAG_TRACE)
kretprobe_trace_func(ri, regs);
#ifdef CONFIG_PERF_EVENTS