redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

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>
hifive-unleashed-5.1
Masami Hiramatsu 2013-05-09 14:44:36 +09:00 committed by Steven Rostedt
parent db02038f4e
commit 48182bd226
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/trace/trace_kprobe.c
View File

@ -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