| Date | Mon, 18 Jun 2012 21:19:49 +0900 | From | Kamezawa Hiroyuki <> | Subject | Re: [PATCH v4 17/25] skip memcg kmem allocations in specified code regions |
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(2012/06/18 19:28), Glauber Costa wrote: > This patch creates a mechanism that skip memcg allocations during > certain pieces of our core code. It basically works in the same way > as preempt_disable()/preempt_enable(): By marking a region under > which all allocations will be accounted to the root memcg. > > We need this to prevent races in early cache creation, when we > allocate data using caches that are not necessarily created already. > > Signed-off-by: Glauber Costa<glommer@parallels.com> > CC: Christoph Lameter<cl@linux.com> > CC: Pekka Enberg<penberg@cs.helsinki.fi> > CC: Michal Hocko<mhocko@suse.cz> > CC: Kamezawa Hiroyuki<kamezawa.hiroyu@jp.fujitsu.com> > CC: Johannes Weiner<hannes@cmpxchg.org> > CC: Suleiman Souhlal<suleiman@google.com>
I'm ok with this approach.
Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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