linux-kernel - Re: [PATCH 2/2] mm/page_ref: add tracepoint to track down page reference manipulation

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Date:	Thu, 18 Feb 2016 20:46:02 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Joonsoo Kim <js1304@...il.com>
Cc:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Michal Nazarewicz <mina86@...a86.com>,
	Minchan Kim <minchan@...nel.org>,
	Mel Gorman <mgorman@...hsingularity.net>,
	Vlastimil Babka <vbabka@...e.cz>,
	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	Linux Memory Management List <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-api@...r.kernel.org,
	Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH 2/2] mm/page_ref: add tracepoint to track down page
 reference manipulation

On Fri, 19 Feb 2016 10:39:10 +0900
Joonsoo Kim <js1304@...il.com> wrote:


> > not sure if it's worth mentioning in the comment, but the other
> > concern here is the performance impact of an extra function call,
> > I believe. otherwise, Joonsoo would just do:  
> 
> It's very natural thing so I'm not sure it is worth mentioning.
> 

Agreed.

-- Steve