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Message-ID: <20140725154320.GB18303@dhcp22.suse.cz> Date: Fri, 25 Jul 2014 17:43:20 +0200 From: Michal Hocko <mhocko@...e.cz> To: Johannes Weiner <hannes@...xchg.org> Cc: Miklos Szeredi <miklos@...redi.hu>, Andrew Morton <akpm@...ux-foundation.org>, Hugh Dickins <hughd@...gle.com>, Tejun Heo <tj@...nel.org>, Vladimir Davydov <vdavydov@...allels.com>, linux-mm@...ck.org, cgroups@...r.kernel.org, Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [patch 13/13] mm: memcontrol: rewrite uncharge API On Fri 25-07-14 11:26:54, Johannes Weiner wrote: > On Thu, Jul 24, 2014 at 11:02:57AM +0200, Michal Hocko wrote: > > On Thu 24-07-14 10:46:44, Michal Hocko wrote: > > > On Wed 23-07-14 17:02:41, Johannes Weiner wrote: > > [...] > > > We can reduce the lookup only to lruvec==true case, no? > > > > Dohh > > s@can@...uld@ > > > > newpage shouldn't charged in all other cases and it would be bug. > > Or am I missing something? > > Yeah, but I'd hate to put that assumption onto the @lrucare parameter, > it just coincides. Yes, you are right. Maybe replace_page_cache_page should have it's own memcg variant which does all the trickery and then call mem_cgroup_migrate when necessary... -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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