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From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>
Cc: linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
	Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
	KAMEZAWA Hiroyuki
	<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
	Balbir Singh
	<bsingharora-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 4/6] cgroups: forbid pre_destroy callback to fail
Date: Thu, 25 Oct 2012 10:42:20 -0700	[thread overview]
Message-ID: <20121025174220.GJ11442@htj.dyndns.org> (raw)
In-Reply-To: <20121025143756.GI11105-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>

Hey, Michal.

On Thu, Oct 25, 2012 at 04:37:56PM +0200, Michal Hocko wrote:
> I am not sure I understand you here. So are you suggesting
> s/BUG_ON/WARN_ON_ONCE/ in this patch?

Oh, no, I meant that we can do upto patch 3 of this series and then
follow up with proper cgroup core update and then stack further
memcg cleanups on top.

> > Let's create a cgroup branch and build things there.  I don't think
> > cgroup changes are gonna be a single patch and expect to see at least
> > some bug fixes afterwards and don't wanna keep them floating separate
> > from other cgroup changes.  
> 
> > mm being based on top of -next, that should work, right?
> 
> Well, a tree based on -next is, ehm, impractical. I can create a bug on
> top of my -mm git branch (where I merge your cgroup common changes) for
> development and then when we are ready we can send it as a series and
> push it via Andrew. Would that work for you?
> Or we can push the core part via Andrew, wait for the merge and work on
> the follow up cleanups later?
> It is not like the follow up part is really urgent, isn't it? I would
> just like the memcg part settled first because this can potentially
> conflict with other memcg work.

Argh... can we pretty *please* just do a plain git branch?  I don't
care where it is but I want to be able to pull it into cgroup core and
yes I do wanna make this happen in this devel cycle.  We've been
sitting on it far too long waiting for memcg.

Thanks.

-- 
tejun

  parent reply	other threads:[~2012-10-25 17:42 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-17 13:30 [RFC] memcg/cgroup: do not fail fail on pre_destroy callbacks Michal Hocko
2012-10-17 13:30 ` [PATCH 1/6] memcg: split mem_cgroup_force_empty into reclaiming and reparenting parts Michal Hocko
2012-10-18 21:56   ` Tejun Heo
2012-10-17 13:30 ` [PATCH 2/6] memcg: root_cgroup cannot reach mem_cgroup_move_parent Michal Hocko
     [not found]   ` <1350480648-10905-3-git-send-email-mhocko-AlSwsSmVLrQ@public.gmane.org>
2012-10-18 21:58     ` Tejun Heo
2012-10-17 13:30 ` [PATCH 3/6] memcg: Simplify mem_cgroup_force_empty_list error handling Michal Hocko
2012-10-18 22:16   ` Tejun Heo
     [not found]     ` <20121018221654.GP13370-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-10-19 13:24       ` Michal Hocko
     [not found]         ` <20121019132438.GD799-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-10-19 19:49           ` Tejun Heo
2012-10-17 13:30 ` [PATCH 4/6] cgroups: forbid pre_destroy callback to fail Michal Hocko
2012-10-18 22:41   ` Tejun Heo
     [not found]     ` <20121018224148.GR13370-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-10-18 22:46       ` Tejun Heo
     [not found]         ` <20121018224606.GS13370-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-10-19 13:34           ` Michal Hocko
2012-10-19 13:32       ` Michal Hocko
     [not found]         ` <20121019133244.GE799-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-10-19 20:24           ` Tejun Heo
     [not found]             ` <20121019202405.GR13370-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-10-22 10:30               ` Michal Hocko
2012-10-24 19:25                 ` Tejun Heo
     [not found]                   ` <20121024192535.GG12182-OlzNCW9NnSVy/B6EtB590w@public.gmane.org>
2012-10-25 14:37                     ` Michal Hocko
     [not found]                       ` <20121025143756.GI11105-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-10-25 17:42                         ` Tejun Heo [this message]
2012-10-25 18:48                           ` Michal Hocko
2012-10-19  9:33   ` Li Zefan
     [not found]     ` <50811E5E.1090205-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2012-10-19 11:09       ` Michal Hocko
2012-10-19 20:17       ` Tejun Heo
2012-10-17 13:30 ` [PATCH 5/6] memcg: make mem_cgroup_reparent_charges non failing Michal Hocko
2012-10-18  8:30   ` Li Zefan
2012-10-18  8:42     ` Michal Hocko
2012-10-18 22:48   ` Tejun Heo
2012-10-19 13:49   ` Michal Hocko
2012-10-17 13:30 ` [PATCH 6/6] hugetlb: do not fail in hugetlb_cgroup_pre_destroy Michal Hocko
     [not found]   ` <1350480648-10905-7-git-send-email-mhocko-AlSwsSmVLrQ@public.gmane.org>
2012-10-18 22:48     ` Tejun Heo
2012-10-17 15:30 ` [RFC] memcg/cgroup: do not fail fail on pre_destroy callbacks Glauber Costa
     [not found] ` <1350480648-10905-1-git-send-email-mhocko-AlSwsSmVLrQ@public.gmane.org>
2012-10-18  0:29   ` Kamezawa Hiroyuki

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