linux-kernel - Re: [PATCH v6 7/7] zsmalloc: use shrinker to trigger auto-compaction

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Message-ID: <20150708034928.GB1520@swordfish>
Date:	Wed, 8 Jul 2015 12:49:28 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:	Minchan Kim <minchan@...nel.org>
Cc:	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: Re: [PATCH v6 7/7] zsmalloc: use shrinker to trigger auto-compaction

On (07/08/15 12:04), Minchan Kim wrote:
> Hi Sergey,
> 

Hi Minchan,

[..]
> > (a) we need something to signify that zs_unregister_shrinker() was successful
> 
> I think a) is simple way to handle it now.
> I don't want to stuck with this issue.
> 
> Please comment out why we need such boolean so after someone who has interest
> on shrinker clean-up is able to grab a chance.


OK, sure.

Do you think that (c) deserves a separate discussion (I can fork a new
discussion thread and Cc more people). It does look like we can do a bit
better and make shrinker less fragile (and probably cleanup/fix several
places in the kernel).

	-ss
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