Move tu->nhit++ from uprobe_trace_func() to uprobe_dispatcher().
->nhit counts how many time we hit the breakpoint inserted by this
uprobe, we do not want to loose this info if uprobe was enabled by
sys_perf_event_open().
Signed-off-by: Oleg Nesterov <o...@redhat.com>
---
kernel/trace/trace_uprobe.c | 3 +--
1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 55cdc14..0a9a8de 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -473,8 +473,6 @@ static void uprobe_trace_func(struct trace_uprobe *tu,
struct pt_regs *regs)
unsigned long irq_flags;
struct ftrace_event_call *call = &tu->call;
- tu->nhit++;
-
local_save_flags(irq_flags);
pc = preempt_count();
@@ -698,6 +696,7 @@ static int uprobe_dispatcher(struct uprobe_consumer *con,
struct pt_regs *regs)
struct trace_uprobe *tu;
tu = container_of(con, struct trace_uprobe, consumer);
+ tu->nhit++;
if (tu->flags & TP_FLAG_TRACE)
uprobe_trace_func(tu, regs);
--
1.5.5.1
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