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Re: [PATCH 01/12] vmscan: add shrink_slab tracepoints

To: david@xxxxxxxxxxxxx
Subject: Re: [PATCH 01/12] vmscan: add shrink_slab tracepoints
From: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Date: Mon, 20 Jun 2011 09:44:33 +0900
Cc: linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, xfs@xxxxxxxxxxx
In-reply-to: <1306998067-27659-2-git-send-email-david@xxxxxxxxxxxxx>
References: <1306998067-27659-1-git-send-email-david@xxxxxxxxxxxxx> <1306998067-27659-2-git-send-email-david@xxxxxxxxxxxxx>
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; ja; rv: Gecko/20110414 Lightning/1.0b2 Thunderbird/3.1.10
(2011/06/02 16:00), Dave Chinner wrote:
> From: Dave Chinner <dchinner@xxxxxxxxxx>
> Іt is impossible to understand what the shrinkers are actually doing
> without instrumenting the code, so add a some tracepoints to allow
> insight to be gained.
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> ---
>  include/trace/events/vmscan.h |   67 
> +++++++++++++++++++++++++++++++++++++++++
>  mm/vmscan.c                   |    6 +++-
>  2 files changed, 72 insertions(+), 1 deletions(-)

This look good to me. I have two minor request. 1) please change patch order,
move this patch after shrinker changes. iow, now both this and [2/12] have
tracepoint change. I don't like it. 2) please avoid cryptic abbreviated variable
names. Instead, please just use the same variable name with vmscan.c source 

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