From: Oleg Nesterov Date: Thu, 31 Jan 2013 18:55:27 +0000 (+0100) Subject: uprobes/perf: Always increment trace_uprobe->nhit X-Git-Tag: upstream/snapshot3+hdmi~5742^2~2^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1b47aefd9b6bd439a4be43c47acd22987ac22db8;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git 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 Acked-by: Srikar Dronamraju --- 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 @@ 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(); @@ -701,6 +699,7 @@ 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);