Messages in this thread Patch in this message | | | Date | Thu, 2 Oct 2008 19:23:04 -0400 (EDT) | From | Steven Rostedt <> | Subject | [PATCH] ftrace: move pc counter in irqstrace |
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The assigning of the pc counter is in the wrong spot in the check_critical_timing function. The pc variable is used in the out jump.
Signed-off-by: Steven Rostedt <srostedt@redhat.com> --- kernel/trace/trace_irqsoff.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Index: linux-tip.git/kernel/trace/trace_irqsoff.c =================================================================== --- linux-tip.git.orig/kernel/trace/trace_irqsoff.c 2008-10-02 09:07:16.000000000 -0400 +++ linux-tip.git/kernel/trace/trace_irqsoff.c 2008-10-02 14:16:54.000000000 -0400 @@ -142,11 +142,11 @@ check_critical_timing(struct trace_array local_save_flags(flags); + pc = preempt_count(); + if (!report_latency(delta)) goto out; - pc = preempt_count(); - spin_lock_irqsave(&max_trace_lock, flags); /* check if we are still the max latency */
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