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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2013-05-09 14:44:36 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-05-09 20:18:44 -0400 |
| commit | 48182bd2261766b810e4e4269a23236c1ace63fb (patch) | |
| tree | dabbc38dbf312f99abc1288d8a92d37fea4260e9 | |
| parent | db02038f4e6a776fd3a0bb71242be37ff378ce86 (diff) | |
| download | linux-48182bd2261766b810e4e4269a23236c1ace63fb.tar.gz linux-48182bd2261766b810e4e4269a23236c1ace63fb.tar.bz2 linux-48182bd2261766b810e4e4269a23236c1ace63fb.zip | |
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>
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 0b7386a54b1e..6e86fbbae337 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -733,8 +733,6 @@ static __kprobes void kprobe_trace_func(struct kprobe *kp, struct pt_regs *regs) 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 @@ 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(); @@ -1075,6 +1071,8 @@ int kprobe_dispatcher(struct kprobe *kp, struct pt_regs *regs) { 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 @@ int kretprobe_dispatcher(struct kretprobe_instance *ri, struct pt_regs *regs) { 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 |