Re: [PATCH 1/1] trace: use the more accurate parameter.

From: Frederic Weisbecker
Date: Tue Feb 10 2009 - 10:26:41 EST


On Mon, Feb 09, 2009 at 07:30:04PM -0500, Wenji Huang wrote:
> Pass tsk to __update_max_tr instead of current to avoid latent hazard.
>
> Impact: clean up
>
> Signed-off-by: Wenji Huang <wenji.huang@xxxxxxxxxx>
> ---
> kernel/trace/trace.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
> index 5b1e9a9..c1592f1 100644
> --- a/kernel/trace/trace.c
> +++ b/kernel/trace/trace.c
> @@ -335,7 +335,7 @@ __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
> data->rt_priority = tsk->rt_priority;
>
> /* record this tasks comm */
> - tracing_record_cmdline(current);
> + tracing_record_cmdline(tsk);
> }


Indeed. At this stage, tsk is the next task in the middle of a context
switch. So I guess current is right, but this is more proper to use tsk.


> static void
> --
> 1.5.6
>
> --
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