Date: Tue, 30 Jul 2013 16:47:15 +0200
From: Michal Hocko <mhocko@suse.cz>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, dave.hansen@intel.com,
        kosaki.motohiro@jp.fujitsu.com, kamezawa.hiroyu@jp.fujitsu.com,
        bp@suse.de, Dave Hansen <dave@linux.vnet.ibm.com>
Subject: Re: [PATCH resend] drop_caches: add some documentation and info
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On Tue 30-07-13 07:39:56, Andrew Morton wrote:
> On Tue, 30 Jul 2013 14:55:25 +0200 Michal Hocko <mhocko@suse.cz> wrote:
> 
> > > > I am OK with that  but can we use a top bit instead. Maybe we never have
> > > > other entities to drop in the future but it would be better to have a room for them
> > > > just in case.
> > > 
> > > If we add another flag in the future it can use bit 3?
> > 
> > What if we get crazy and need more of them?
> 
> Then we use bit 4.  Then 5.  Then 6.
> 
> I'm really not understanding your point here ;)

I meant let's keep entities to drop in the low bits and the mode of
printing in the top so they are separated.

-- 
Michal Hocko
SUSE Labs
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