linux-kernel - Re: [PATCH 1/3] Add a new field to struct shrinker

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Date:	Fri, 22 Jul 2016 18:27:07 -0700
From:	Tony Jones <tonyj@...e.de>
To:	Michal Hocko <mhocko@...nel.org>,
	Janani Ravichandran <janani.rvchndrn@...il.com>
Cc:	Rik van Riel <riel@...riel.com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
	hannes@...xchg.org, vdavydov@...tuozzo.com, vbabka@...e.cz,
	mgorman@...hsingularity.net, kirill.shutemov@...ux.intel.com,
	bywxiaobai@....com
Subject: Re: [PATCH 1/3] Add a new field to struct shrinker

On 07/20/2016 07:54 AM, Michal Hocko wrote:

>> Michal, just to make sure I understand you correctly, do you mean that we
>> could infer the names of the shrinkers by looking at the names of their callbacks?
> 
> Yes, %ps can then be used for the name of the shrinker structure
> (assuming it is available).

This is fine for emitting via the ftrace /sys interface,  but in order to have the data [name] get 
marshalled thru to perf (for example) you need to add it to the TP_fast_assign entry.

tony