From: Vladimir Davydov <vdavydov-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
To: Cyrill Gorcunov <gorcunov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Andrew Morton
<akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>,
Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>,
Michal Hocko <mhocko-AlSwsSmVLrQ@public.gmane.org>,
Greg Thelen <gthelen-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Michel Lespinasse
<walken-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
David Rientjes <rientjes-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
Pavel Emelyanov <xemul-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>,
Jonathan Corbet <corbet-T1hC0tSOHrs@public.gmane.org>,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-doc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 3/3] mm: idle memory tracking
Date: Thu, 19 Mar 2015 13:41:03 +0300 [thread overview]
Message-ID: <20150319104103.GA12162@esperanza> (raw)
In-Reply-To: <20150319101205.GC27066@moon>
On Thu, Mar 19, 2015 at 01:12:05PM +0300, Cyrill Gorcunov wrote:
> On Wed, Mar 18, 2015 at 11:44:36PM +0300, Vladimir Davydov wrote:
> > +static void set_mem_idle(void)
> > +{
> > + int nid;
> > +
> > + for_each_online_node(nid)
> > + set_mem_idle_node(nid);
> > +}
>
> Vladimir, might we need get_online_mems/put_online_mems here,
> or if node gets offline this wont be a problem? (Asking
> because i don't know).
I only need to dereference page structs corresponding to the node here,
and page structs are not freed when the node gets offline AFAICS, so I
guess it must be safe.
Thanks,
Vladimir
next prev parent reply other threads:[~2015-03-19 10:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 20:44 [PATCH 0/3] idle memory tracking Vladimir Davydov
2015-03-18 20:44 ` [PATCH 1/3] memcg: add page_cgroup_ino helper Vladimir Davydov
2015-03-18 20:44 ` [PATCH 2/3] proc: add kpagecgroup file Vladimir Davydov
2015-03-18 20:44 ` [PATCH 3/3] mm: idle memory tracking Vladimir Davydov
2015-03-19 10:12 ` Cyrill Gorcunov
2015-03-19 10:41 ` Vladimir Davydov [this message]
2015-03-19 10:45 ` Cyrill Gorcunov
2015-03-19 2:13 ` [PATCH 0/3] " Minchan Kim
2015-03-19 8:08 ` Vladimir Davydov
2015-03-24 7:45 ` Vladimir Davydov
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