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

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Message-ID: <20160218092056.18a5af4a@gandalf.local.home>
Date:	Thu, 18 Feb 2016 09:20:56 -0500
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Joonsoo Kim <js1304@...il.com>
Cc:	Joonsoo Kim <iamjoonsoo.kim@....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>,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Linux Memory Management List <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-api@...r.kernel.org
Subject: Re: [PATCH 2/2] mm/page_ref: add tracepoint to track down page
 reference manipulation

On Thu, 18 Feb 2016 16:46:08 +0900
Joonsoo Kim <js1304@...il.com> wrote:

> 2016-02-16 10:16 GMT+09:00 Steven Rostedt <rostedt@...dmis.org>:
> > On Tue, 16 Feb 2016 09:47:20 +0900
> > Joonsoo Kim <iamjoonsoo.kim@....com> wrote:
> >  
> >> > They return true when CONFIG_TRACEPOINTS is configured in and the
> >> > tracepoint is enabled, and false otherwise.  
> >>
> >> This implementation is what you proposed before. Please refer below
> >> link and source.
> >>
> >> https://lkml.org/lkml/2015/12/9/699
> >> arch/x86/include/asm/msr.h  
> >
> > That was a year ago, how am I suppose to remember ;-)  
> 
> I think you are smart enough to remember. :)
> I will add it on commit description on next spin.
> 
>

Better yet, add it to the code. I'll reply to the patch.

-- Steve