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From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
Cc: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
	Viresh Kumar
	<viresh.kumar-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	mingo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org,
	linaro-kernel-cunTk1MwBs8s++Sfvej+rw@public.gmane.org,
	patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [PATCH] cpusets: Allocate heap only when required
Date: Fri, 24 Jan 2014 05:59:52 -0500	[thread overview]
Message-ID: <20140124105952.GD4101@htj.dyndns.org> (raw)
In-Reply-To: <alpine.DEB.2.02.1401240243260.24372-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>

Hey,

On Fri, Jan 24, 2014 at 02:51:12AM -0800, David Rientjes wrote:
> Nobody is depending on shit, the patch is removing a completely pointless 
> memory allocation in braindead cpuset code.  What you think is "harmful" 
> or "more harmful" is irrelevant, but nobody said anything about depending 
> on that behavior to do anything.

Weren't you talking something of that effect in memcg?  Or was it
Michal?  At any rate, I think you're missing the point why Li replied
that it's harmless.  He, I think, meant that it doesn't make any
semantical difference to userland, so your reply saying that it's not
harmless listing the failure mode under memory pressure seemed
misleading, so I thought clarification was necessary.  Probably my
(false?) memory of you talking about that contributed.  Anyways, we
agree.  Don't depend on it.

Thanks.

-- 
tejun

  parent reply	other threads:[~2014-01-24 10:59 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <8622e93b9c49c66ffdc9ef0aa8371c322718edd5.1390475530.git.viresh.kumar@linaro.org>
     [not found] ` <alpine.DEB.2.02.1401231330530.7313@chino.kir.corp.google.com>
     [not found]   ` <alpine.DEB.2.02.1401231330530.7313-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-24  1:58     ` [PATCH] cpusets: Allocate heap only when required Li Zefan
     [not found]       ` <52E1C8BD.2010500-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2014-01-24  4:57         ` Viresh Kumar
     [not found]           ` <CAKohpomn_wgQExfhJL6=MB9LrRhR4=+7t3ehy0d6vEq9duzr8Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-01-24 10:27             ` Tejun Heo
     [not found]               ` <20140124102758.GA4101-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2014-01-24 10:33                 ` Viresh Kumar
2014-01-24 10:40                   ` Tejun Heo
2014-01-24 10:33       ` David Rientjes
     [not found]         ` <alpine.DEB.2.02.1401240230190.9846-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-24 10:36           ` Tejun Heo
     [not found]             ` <20140124103631.GB4101-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2014-01-24 10:51               ` David Rientjes
     [not found]                 ` <alpine.DEB.2.02.1401240243260.24372-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-01-24 10:59                   ` Tejun Heo [this message]
2014-01-24 11:15                     ` David Rientjes

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