linux-kernel - Re: [PATCH 04/11] cgroup: use kzalloc() and list_del

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Message-ID: <20130613024859.GA7432@mtj.dyndns.org>
Date:	Wed, 12 Jun 2013 19:48:59 -0700
From:	Tejun Heo <tj@...nel.org>
To:	Kent Overstreet <koverstreet@...gle.com>
Cc:	Li Zefan <lizefan@...wei.com>,
	containers@...ts.linux-foundation.org,
	Cgroups <cgroups@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Christoph Lameter <cl@...ux-foundation.org>
Subject: Re: [PATCH 04/11] cgroup: use kzalloc() and list_del_init()

On Wed, Jun 12, 2013 at 07:43:10PM -0700, Kent Overstreet wrote:
> list_del() does do poisoning - and list debugging is cheaper to enable
> than full slab debugging.

Ah, right, now we have DEBUG_LIST.  Completely forgot about that.  I
don't think the cost difference matters that much as long as there are
enough people running with slab debugging, but, yeah, with DEBUG_LIST,
leaving list_del() alone would actually be better.  I'll drop that
part.

Thanks.

-- 
tejun
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