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From: Mel Gorman on 16 Jul 2010 07:10
On Fri, Jul 16, 2010 at 07:16:05PM +0900, KOSAKI Motohiro wrote:
>
> TRACE_EVENT() is a bit old fashion. convert it.
>

heh, it's not a question of fashion :). It was defined this way because
there wasn't a second user that would use the template. I didn't see the
advantage of creating a template for one user. Your series adds a second
one so it makes sense to convert.

> no functionally change.
>
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com>
> ---
> include/trace/events/vmscan.h | 19 +++++++++++++++++--
> 1 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
> index b26daa9..bd749c1 100644
> --- a/include/trace/events/vmscan.h
> +++ b/include/trace/events/vmscan.h
> @@ -68,7 +68,7 @@ TRACE_EVENT(mm_vmscan_wakeup_kswapd,
> __entry->order)
> );
>
> -TRACE_EVENT(mm_vmscan_direct_reclaim_begin,
> +DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_begin_template,
>
> TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
>
> @@ -92,7 +92,15 @@ TRACE_EVENT(mm_vmscan_direct_reclaim_begin,
> show_gfp_flags(__entry->gfp_flags))
> );
>
> -TRACE_EVENT(mm_vmscan_direct_reclaim_end,
> +DEFINE_EVENT(mm_vmscan_direct_reclaim_begin_template, mm_vmscan_direct_reclaim_begin,
> +
> + TP_PROTO(int order, int may_writepage, gfp_t gfp_flags),
> +
> + TP_ARGS(order, may_writepage, gfp_flags)
> +);

Over 80 columns there.

> +
> +
> +DECLARE_EVENT_CLASS(mm_vmscan_direct_reclaim_end_template,
>
> TP_PROTO(unsigned long nr_reclaimed),
>
> @@ -109,6 +117,13 @@ TRACE_EVENT(mm_vmscan_direct_reclaim_end,
> TP_printk("nr_reclaimed=%lu", __entry->nr_reclaimed)
> );
>
> +DEFINE_EVENT(mm_vmscan_direct_reclaim_end_template, mm_vmscan_direct_reclaim_end,
> +
> + TP_PROTO(unsigned long nr_reclaimed),
> +
> + TP_ARGS(nr_reclaimed)
> +);
> +

Over 80 columns here too.

I know I broke it multiple times in my last series because I thought it
wasn't enforced any more but I got called on it.


> TRACE_EVENT(mm_vmscan_lru_isolate,
>
> TP_PROTO(int order,

Otherwise, I can't spot a problem.

Acked-by: Mel Gorman <mel(a)csn.ul.ie>

--
Mel Gorman
Part-time Phd Student Linux Technology Center
University of Limerick IBM Dublin Software Lab
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