uprobes/perf: Always increment trace_uprobe->nhit
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 <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 9c8babb..c4e29e1 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -476,8 +476,6 @@
unsigned long irq_flags;
struct ftrace_event_call *call = &tu->call;
- tu->nhit++;
-
local_save_flags(irq_flags);
pc = preempt_count();
@@ -701,6 +699,7 @@
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);