| Date | Mon, 1 Oct 2012 14:48:12 -0400 | From | Johannes Weiner <> | Subject | Re: [PATCH v3 01/13] memcg: Make it possible to use the stock for more than one page. |
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On Tue, Sep 18, 2012 at 06:03:58PM +0400, Glauber Costa wrote: > From: Suleiman Souhlal <ssouhlal@FreeBSD.org> > > We currently have a percpu stock cache scheme that charges one page at a > time from memcg->res, the user counter. When the kernel memory > controller comes into play, we'll need to charge more than that. > > This is because kernel memory allocations will also draw from the user > counter, and can be bigger than a single page, as it is the case with > the stack (usually 2 pages) or some higher order slabs. > > [ glommer@parallels.com: added a changelog ] > > Signed-off-by: Suleiman Souhlal <suleiman@google.com> > Signed-off-by: Glauber Costa <glommer@parallels.com> > Acked-by: David Rientjes <rientjes@google.com> > Acked-by: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> > Acked-by: Michal Hocko <mhocko@suse.cz>
Independent of how the per-subtree enable-through-setting-limit discussion pans out, we're going to need the charge cache, so:
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
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