From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Vladimir Davydov <vdavydov@parallels.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>, Greg Thelen <gthelen@google.com>,
Michel Lespinasse <walken@google.com>,
David Rientjes <rientjes@google.com>,
Pavel Emelyanov <xemul@parallels.com>,
Jonathan Corbet <corbet@lwn.net>,
linux-api@vger.kernel.org, linux-doc@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] mm: idle memory tracking
Date: Thu, 19 Mar 2015 13:45:24 +0300 [thread overview]
Message-ID: <20150319104524.GD27066@moon> (raw)
In-Reply-To: <20150319104103.GA12162@esperanza>
On Thu, Mar 19, 2015 at 01:41:03PM +0300, Vladimir Davydov wrote:
> >
> > 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.
OK, thanks for info!
WARNING: multiple messages have this Message-ID (diff)
From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Vladimir Davydov <vdavydov@parallels.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>, Greg Thelen <gthelen@google.com>,
Michel Lespinasse <walken@google.com>,
David Rientjes <rientjes@google.com>,
Pavel Emelyanov <xemul@parallels.com>,
Jonathan Corbet <corbet@lwn.net>,
linux-api@vger.kernel.org, linux-doc@vger.kernel.org,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/3] mm: idle memory tracking
Date: Thu, 19 Mar 2015 13:45:24 +0300 [thread overview]
Message-ID: <20150319104524.GD27066@moon> (raw)
In-Reply-To: <20150319104103.GA12162@esperanza>
On Thu, Mar 19, 2015 at 01:41:03PM +0300, Vladimir Davydov wrote:
> >
> > 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.
OK, thanks for info!
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next prev parent reply other threads:[~2015-03-19 10:45 UTC|newest]
Thread overview: 23+ 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 ` Vladimir Davydov
2015-03-18 20:44 ` [PATCH 1/3] memcg: add page_cgroup_ino helper Vladimir Davydov
2015-03-18 20:44 ` Vladimir Davydov
2015-03-18 20:44 ` Vladimir Davydov
2015-03-18 20:44 ` [PATCH 2/3] proc: add kpagecgroup file Vladimir Davydov
2015-03-18 20:44 ` Vladimir Davydov
2015-03-18 20:44 ` [PATCH 3/3] mm: idle memory tracking Vladimir Davydov
2015-03-18 20:44 ` Vladimir Davydov
2015-03-19 10:12 ` Cyrill Gorcunov
2015-03-19 10:12 ` Cyrill Gorcunov
2015-03-19 10:41 ` Vladimir Davydov
2015-03-19 10:41 ` Vladimir Davydov
2015-03-19 10:41 ` Vladimir Davydov
2015-03-19 10:45 ` Cyrill Gorcunov [this message]
2015-03-19 10:45 ` Cyrill Gorcunov
2015-03-19 2:13 ` [PATCH 0/3] " Minchan Kim
2015-03-19 2:13 ` Minchan Kim
2015-03-19 8:08 ` Vladimir Davydov
2015-03-19 8:08 ` Vladimir Davydov
2015-03-24 7:45 ` Vladimir Davydov
2015-03-24 7:45 ` Vladimir Davydov
2015-03-24 7:45 ` Vladimir Davydov
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