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Date: Thu, 20 Nov 2014 15:39:24 -0500
From: Johannes Weiner <hannes@cmpxchg.org>
To: Mel Gorman <mgorman@suse.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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Subject: Re: [PATCH 3.14 102/122] mm + fs: prepare for non-page entries in
 page cache radix trees
Message-ID: <20141120203924.GA2611@phnom.home.cmpxchg.org>
References: <20141119205208.812884198@linuxfoundation.org>
 <20141119205212.209198738@linuxfoundation.org>
 <20141120154937.GA325@phnom.home.cmpxchg.org>
 <20141120162122.GS2725@suse.de>
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On Thu, Nov 20, 2014 at 04:21:22PM +0000, Mel Gorman wrote:
> On Thu, Nov 20, 2014 at 10:49:37AM -0500, Johannes Weiner wrote:
> > I don't see the rest of the thrash-detection patches in this series.
> > Without anybody actually planting "entries other than pages" in the
> > radix trees, why is this needed in -stable?
> 
> Patches later on in the stable series depended upon the code structure
> introduced by this patch even though the thrash-detection stuff was not
> backported. It could have been backported without it but then the
> patches would look much different from their mainline equivalent.

That makes sense.  Thanks!