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From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Daniel Wagner <wagi-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
Cc: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>,
	netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Daniel Wagner
	<daniel.wagner-98C5kh4wR6ohFhg+JK9F0w@public.gmane.org>,
	"David S. Miller" <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
	Andrew Morton
	<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
	Eric Dumazet <edumazet-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
	Gao feng <gaofeng-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>,
	Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>,
	Jamal Hadi Salim <jhs-jkUAjuhPggJWk0Htik3J/w@public.gmane.org>,
	John Fastabend
	<john.r.fastabend-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Kamezawa Hiroyuki
	<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
	Neil Horman <nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org>
Subject: Re: [PATCH v0 5/5] cgroup: Assign subsystem IDs during compile time
Date: Mon, 20 Aug 2012 10:51:47 -0700	[thread overview]
Message-ID: <20120820175147.GN24861@google.com> (raw)
In-Reply-To: <502E0552.3080602-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>

Hello, Daniel, Li.

On Fri, Aug 17, 2012 at 10:48:18AM +0200, Daniel Wagner wrote:
> >I think so.
> 
> I am preparing an updated version which does not need the extra 1
> pointer. Some more preprocessor magic involved :)

Please try to refrain from macros as much as possible.  Let's try to
keep things C. :)

> >I'm definitely all for simplicity, but I'm not sure if we can do better in
> >simplifying the code for modularized cgroup subsystem. (I guess you didn't
> >mean to remove this feature?)
> 
> The new version should also be simpler to review because I don't
> have to touch the loops everywhere.

e.g. Why does the proposed code have different variants of
task_cls_classid() for builtin and modular cases?  Why not just use
the same code path if the ID is always static anyway?  Also, longer
term, maybe we can unify root cgroup initialization for built-in and
modular cases?

Thanks.

-- 
tejun

  parent reply	other threads:[~2012-08-20 17:51 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-16 14:12 [PATCH v0 0/5] cgroup: Assign subsystem IDs during compile time Daniel Wagner
2012-08-16 14:12 ` [PATCH v0 2/5] cgroup: Move sock_update_classid() decleration to cls_cgroup.h Daniel Wagner
2012-08-16 14:12 ` [PATCH v0 3/5] cgroup: Protect access to task_cls_classid() when built as module Daniel Wagner
     [not found]   ` <1345126336-20755-4-git-send-email-wagi-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
2012-08-17  7:35     ` Li Zefan
     [not found]       ` <502DF43F.9010209-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2012-08-17  7:55         ` Daniel Wagner
     [not found] ` <1345126336-20755-1-git-send-email-wagi-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
2012-08-16 14:12   ` [PATCH v0 1/5] cgroup: Use empty task_cls_classid() when !CONFIG_NET_CLS(_MODULE) Daniel Wagner
2012-08-16 14:12   ` [PATCH v0 4/5] cgroup: Protect access to task_netprioidx() when built as module Daniel Wagner
2012-08-16 14:12   ` [PATCH v0 5/5] cgroup: Assign subsystem IDs during compile time Daniel Wagner
     [not found]     ` <1345126336-20755-6-git-send-email-wagi-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
2012-08-16 23:20       ` Tejun Heo
     [not found]         ` <20120816232010.GJ24861-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-08-17  7:25           ` Li Zefan
2012-08-17  8:48             ` Daniel Wagner
     [not found]               ` <502E0552.3080602-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
2012-08-20 17:51                 ` Tejun Heo [this message]
2012-08-16 19:05   ` [PATCH v0 0/5] " Neil Horman
     [not found]     ` <20120816190542.GA8203-B26myB8xz7F8NnZeBjwnZQMhkBWG/bsMQH7oEaQurus@public.gmane.org>
2012-08-16 20:25       ` Daniel Wagner
     [not found]         ` <502D5737.1010604-kQCPcA+X3s7YtjvyW6yDsg@public.gmane.org>
2012-08-16 22:37           ` John Fastabend

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