From: Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: paul-inf54ven1CmVyaH7bEyXVA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
mhocko-AlSwsSmVLrQ@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [PATCH 06/13] cpuset: cleanup cpuset[_can]_attach()
Date: Wed, 26 Dec 2012 18:20:11 +0800 [thread overview]
Message-ID: <50DACF5B.6050705@huawei.com> (raw)
In-Reply-To: <1354138460-19286-7-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
On 2012/11/29 5:34, Tejun Heo wrote:
> cpuset_can_attach() prepare global variables cpus_attach and
> cpuset_attach_nodemask_{to|from} which are used by cpuset_attach().
> There is no reason to prepare in cpuset_can_attach(). The same
> information can be accessed from cpuset_attach().
>
> Move the prepartion logic from cpuset_can_attach() to cpuset_attach()
> and make the global variables static ones inside cpuset_attach().
>
> While at it, convert cpus_attach to cpumask_t from cpumask_var_t.
> There's no reason to mess with dynamic allocation on a static buffer.
>
But Rusty had been deprecating the use of cpumask_t. I don't know why
the final deprecation hasn't been completed yet.
next prev parent reply other threads:[~2012-12-26 10:20 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 21:34 [PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core Tejun Heo
2012-11-28 21:34 ` [PATCH 01/13] cpuset: remove unused cpuset_unlock() Tejun Heo
2012-11-28 21:34 ` [PATCH 03/13] cpuset: introduce ->css_on/offline() Tejun Heo
2012-11-28 21:34 ` [PATCH 04/13] cpuset: introduce CS_ONLINE Tejun Heo
2012-11-28 21:34 ` [PATCH 05/13] cpuset: introduce cpuset_for_each_child() Tejun Heo
2012-11-28 21:34 ` [PATCH 06/13] cpuset: cleanup cpuset[_can]_attach() Tejun Heo
[not found] ` <1354138460-19286-7-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2012-12-26 10:20 ` Li Zefan [this message]
[not found] ` <50DACF5B.6050705-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2012-12-26 12:04 ` Tejun Heo
2013-01-02 4:42 ` Rusty Russell
[not found] ` <87zk0s5h7c.fsf-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
2013-01-02 15:34 ` Tejun Heo
2013-01-03 0:47 ` Rusty Russell
[not found] ` <871ue35bzk.fsf-8n+1lVoiYb80n/F98K4Iww@public.gmane.org>
2013-01-03 2:29 ` Tejun Heo
[not found] ` <20130103022911.GH11220-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-01-06 23:28 ` Rusty Russell
2012-11-28 21:34 ` [PATCH 07/13] cpuset: drop async_rebuild_sched_domains() Tejun Heo
2012-11-28 21:34 ` [PATCH 08/13] cpuset: reorganize CPU / memory hotplug handling Tejun Heo
2012-11-28 21:34 ` [PATCH 09/13] cpuset: don't nest cgroup_mutex inside get_online_cpus() Tejun Heo
2012-11-28 21:34 ` [PATCH 10/13] cpuset: make CPU / memory hotplug propagation asynchronous Tejun Heo
2012-11-28 21:34 ` [PATCH 11/13] cpuset: pin down cpus and mems while a task is being attached Tejun Heo
2012-11-28 21:34 ` [PATCH 12/13] cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty Tejun Heo
2012-11-28 21:34 ` [PATCH 13/13] cpuset: replace cgroup_mutex locking with cpuset internal locking Tejun Heo
[not found] ` <1354138460-19286-1-git-send-email-tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2012-11-28 21:34 ` [PATCH 02/13] cpuset: remove fast exit path from remove_tasks_in_empty_cpuset() Tejun Heo
2012-11-29 11:14 ` [PATCHSET cgroup/for-3.8] cpuset: decouple cpuset locking from cgroup core Glauber Costa
[not found] ` <50B743A1.4040405-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-11-29 14:26 ` Tejun Heo
[not found] ` <20121129142646.GD24683-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2012-11-29 14:36 ` Tejun Heo
2012-11-30 3:21 ` Kamezawa Hiroyuki
2012-11-30 8:33 ` Michal Hocko
2012-11-30 9:00 ` Glauber Costa
2012-11-30 9:24 ` Michal Hocko
[not found] ` <20121130092435.GD29317-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-11-30 9:33 ` Glauber Costa
2012-11-30 9:42 ` Glauber Costa
[not found] ` <50B87F84.7040206-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
2012-11-30 9:49 ` Michal Hocko
[not found] ` <20121130094959.GE29317-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-11-30 10:00 ` Glauber Costa
2012-11-30 14:59 ` Tejun Heo
[not found] ` <20121130145924.GA3873-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2012-11-30 15:09 ` Glauber Costa
2012-12-03 15:22 ` Michal Hocko
2012-12-03 16:53 ` Tejun Heo
[not found] ` <20121203165338.GF19802-Gd/HAXX7CRxy/B6EtB590w@public.gmane.org>
2012-12-06 6:25 ` Li Zefan
[not found] ` <50C03A3F.7070605-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2012-12-06 13:09 ` Michal Hocko
[not found] ` <20121206130904.GC10931-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2012-12-06 16:54 ` Tejun Heo
2012-12-26 10:51 ` Li Zefan
2013-01-02 8:53 ` Michal Hocko
[not found] ` <20130102085355.GA22160-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2013-01-02 15:36 ` Tejun Heo
[not found] ` <20130102153605.GB11220-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2013-01-02 16:02 ` Michal Hocko
[not found] ` <50DAD696.8050400-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2013-01-03 22:20 ` Tejun Heo
-- strict thread matches above, loose matches on Subject: below --
2013-01-03 21:35 [PATCHSET] cpuset: decouple cpuset locking from cgroup core, take#2 Tejun Heo
2013-01-03 21:36 ` [PATCH 06/13] cpuset: cleanup cpuset[_can]_attach() Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50DACF5B.6050705@huawei.com \
--to=lizefan-hv44wf8li93qt0dzr+alfa@public.gmane.org \
--cc=cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org \
--cc=mhocko-AlSwsSmVLrQ@public.gmane.org \
--cc=paul-inf54ven1CmVyaH7bEyXVA@public.gmane.org \
--cc=tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).