From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Mandeep Singh Baines <msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Cc: Li Zefan <lizf-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>,
Frederic Weisbecker
<fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
KAMEZAWA Hiroyuki
<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Paul Menage <paul-inf54ven1CmVyaH7bEyXVA@public.gmane.org>
Subject: Re: [PATCH 3/4] cgroup: only need to check oldcgrp==newgrp once
Date: Thu, 22 Dec 2011 07:38:22 -0800 [thread overview]
Message-ID: <20111222153822.GB17084@google.com> (raw)
In-Reply-To: <1324527518-24461-3-git-send-email-msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
On Wed, Dec 21, 2011 at 08:18:37PM -0800, Mandeep Singh Baines wrote:
> In cgroup_attach_proc it is now sufficient to only check that
> oldcgrp==newcgrp once. Now that we are using threadgroup_lock()
> during the migrations, oldcgrp will not change.
>
> Signed-off-by: Mandeep Singh Baines <msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
> Reviewed-by: Li Zefan <lizf-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
> Cc: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
> Cc: containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
> Cc: cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>
> Cc: Frederic Weisbecker <fweisbec-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Cc: Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> Cc: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
> Cc: Paul Menage <paul-inf54ven1CmVyaH7bEyXVA@public.gmane.org>
Applied 1-3 to cgroup/for-3.3. I edited out mention of check_fetched
rename in the commit description of the first patch and applied
Acked-by from Li to all three. Li, let's stick to ack/nack.
Thanks.
--
tejun
WARNING: multiple messages have this Message-ID (diff)
From: Tejun Heo <tj@kernel.org>
To: Mandeep Singh Baines <msb@chromium.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
linux-kernel@vger.kernel.org,
containers@lists.linux-foundation.org, cgroups@vger.kernel.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Oleg Nesterov <oleg@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Paul Menage <paul@paulmenage.org>
Subject: Re: [PATCH 3/4] cgroup: only need to check oldcgrp==newgrp once
Date: Thu, 22 Dec 2011 07:38:22 -0800 [thread overview]
Message-ID: <20111222153822.GB17084@google.com> (raw)
In-Reply-To: <1324527518-24461-3-git-send-email-msb@chromium.org>
On Wed, Dec 21, 2011 at 08:18:37PM -0800, Mandeep Singh Baines wrote:
> In cgroup_attach_proc it is now sufficient to only check that
> oldcgrp==newcgrp once. Now that we are using threadgroup_lock()
> during the migrations, oldcgrp will not change.
>
> Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
> Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
> Cc: Tejun Heo <tj@kernel.org>
> Cc: containers@lists.linux-foundation.org
> Cc: cgroups@vger.kernel.org
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Oleg Nesterov <oleg@redhat.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Paul Menage <paul@paulmenage.org>
Applied 1-3 to cgroup/for-3.3. I edited out mention of check_fetched
rename in the commit description of the first patch and applied
Acked-by from Li to all three. Li, let's stick to ack/nack.
Thanks.
--
tejun
next prev parent reply other threads:[~2011-12-22 15:38 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-22 4:18 [PATCH 1/4] cgroup: remove redundant get/put of old css_set from migrate Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
[not found] ` <1324527518-24461-1-git-send-email-msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2011-12-22 4:18 ` [PATCH 2/4] cgroup: remove redundant get/put of task struct Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
[not found] ` <1324527518-24461-2-git-send-email-msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2011-12-22 5:36 ` Li Zefan
2011-12-22 5:36 ` Li Zefan
2011-12-22 5:36 ` Li Zefan
2011-12-22 4:18 ` [PATCH 3/4] cgroup: only need to check oldcgrp==newgrp once Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
[not found] ` <1324527518-24461-3-git-send-email-msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2011-12-22 15:38 ` Tejun Heo [this message]
2011-12-22 15:38 ` Tejun Heo
2011-12-22 15:38 ` Tejun Heo
2011-12-22 4:18 ` [PATCH 4/4] cgroup: remove extra calls to find_existing_css_set Mandeep Singh Baines
2011-12-22 4:18 ` Mandeep Singh Baines
[not found] ` <1324527518-24461-4-git-send-email-msb-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2011-12-22 5:50 ` Li Zefan
2011-12-22 5:50 ` Li Zefan
[not found] ` <4EF2C536.7070408-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org>
2011-12-22 9:44 ` Frederic Weisbecker
2011-12-22 9:44 ` Frederic Weisbecker
2011-12-22 15:40 ` Tejun Heo
2011-12-22 15:40 ` Tejun Heo
2011-12-22 15:40 ` Tejun Heo
2011-12-22 9:44 ` Frederic Weisbecker
2011-12-22 5:50 ` Li Zefan
2011-12-22 4:18 ` Mandeep Singh Baines
2011-12-22 5:11 ` [PATCH 1/4] cgroup: remove redundant get/put of old css_set from migrate Li Zefan
2011-12-22 5:11 ` Li Zefan
2011-12-22 5:11 ` Li Zefan
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