AcoSail/kernel_optimize_test
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uprobes/perf: Always increment trace_uprobe->nhit

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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>
This commit is contained in:
Oleg Nesterov 2013-01-31 19:55:27 +01:00
parent a932b7381f
commit 1b47aefd9b
1 changed files with 1 additions and 2 deletions
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3
kernel/trace/trace_uprobe.c
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@ -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);