From: Vladimir Davydov <vdavydov-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
To: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Cc: Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
Hugh Dickins <hughd-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [patch 7/9] mm: memcontrol: do not acquire page_cgroup lock for kmem pages
Date: Fri, 23 May 2014 18:29:31 +0400 [thread overview]
Message-ID: <20140523142929.GC3147@esperanza> (raw)
In-Reply-To: <20140523133938.GC22135-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
On Fri, May 23, 2014 at 03:39:38PM +0200, Michal Hocko wrote:
> I am adding Vladimir to CC
>
> On Wed 30-04-14 16:25:41, Johannes Weiner wrote:
> > Kmem page charging and uncharging is serialized by means of exclusive
> > access to the page. Do not take the page_cgroup lock and don't set
> > pc->flags atomically.
> >
> > Signed-off-by: Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
Acked-by: Vladimir Davydov <vdavydov-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
next prev parent reply other threads:[~2014-05-23 14:29 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-30 20:25 [patch 0/9] mm: memcontrol: naturalize charge lifetime Johannes Weiner
2014-04-30 20:25 ` [patch 1/9] mm: memcontrol: fold mem_cgroup_do_charge() Johannes Weiner
2014-04-30 20:25 ` [patch 2/9] mm: memcontrol: rearrange charging fast path Johannes Weiner
[not found] ` <1398889543-23671-3-git-send-email-hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-07 14:33 ` Michal Hocko
2014-05-08 18:22 ` Johannes Weiner
[not found] ` <20140508182224.GO19914-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-12 7:59 ` Michal Hocko
2014-04-30 20:25 ` [patch 3/9] mm: memcontrol: retry reclaim for oom-disabled and __GFP_NOFAIL charges Johannes Weiner
2014-05-07 14:43 ` Michal Hocko
2014-05-08 18:28 ` Johannes Weiner
2014-04-30 20:25 ` [patch 4/9] mm: memcontrol: catch root bypass in move precharge Johannes Weiner
2014-05-07 14:55 ` Michal Hocko
2014-05-08 18:30 ` Johannes Weiner
2014-04-30 20:25 ` [patch 5/9] mm: memcontrol: use root_mem_cgroup res_counter Johannes Weiner
2014-05-07 15:14 ` Michal Hocko
2014-04-30 20:25 ` [patch 6/9] mm: memcontrol: remove ordering between pc->mem_cgroup and PageCgroupUsed Johannes Weiner
[not found] ` <1398889543-23671-7-git-send-email-hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-23 13:20 ` Michal Hocko
2014-05-27 19:45 ` Johannes Weiner
2014-05-28 11:31 ` Michal Hocko
2014-04-30 20:25 ` [patch 7/9] mm: memcontrol: do not acquire page_cgroup lock for kmem pages Johannes Weiner
2014-05-23 13:39 ` Michal Hocko
2014-05-23 13:40 ` Michal Hocko
[not found] ` <20140523133938.GC22135-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2014-05-23 14:29 ` Vladimir Davydov [this message]
2014-05-27 19:53 ` Johannes Weiner
[not found] ` <20140527195342.GD2878-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-28 11:33 ` Michal Hocko
2014-04-30 20:25 ` [patch 8/9] mm: memcontrol: rewrite charge API Johannes Weiner
[not found] ` <1398889543-23671-9-git-send-email-hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-23 14:18 ` Michal Hocko
2014-05-23 14:54 ` Michal Hocko
[not found] ` <20140523145413.GF22135-2MMpYkNvuYDjFM9bn6wA6Q@public.gmane.org>
2014-05-23 15:18 ` Michal Hocko
2014-05-27 20:05 ` Johannes Weiner
[not found] ` <20140527200516.GE2878-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-28 11:37 ` Michal Hocko
2014-04-30 20:25 ` [patch 9/9] mm: memcontrol: rewrite uncharge API Johannes Weiner
2014-05-04 14:32 ` Johannes Weiner
2014-05-27 7:43 ` Kamezawa Hiroyuki
2014-05-27 18:59 ` Johannes Weiner
[not found] ` <1398889543-23671-1-git-send-email-hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>
2014-05-02 11:26 ` [patch 0/9] mm: memcontrol: naturalize charge lifetime Michal Hocko
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