Re: [PATCH 3.14 102/122] mm + fs: prepare for non-page entries in page cache radix trees

From: Johannes Weiner
Date: Thu Nov 20 2014 - 15:39:42 EST


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!
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