From mboxrd@z Thu Jan  1 00:00:00 1970
From: Phillip Susi <psusi@cfl.rr.com>
Subject: Re: unified page and buffer cache?
Date: Fri, 07 May 2010 20:50:53 -0400
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Cc: linux-fsdevel@vger.kernel.org,
	Linux-kernel <linux-kernel@vger.kernel.org>
To: Matthew Wilcox <matthew@wil.cx>
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On Fri, 2010-05-07 at 12:30 -0600, Matthew Wilcox wrote:
> That would be possible, but would waste memory space.  But we've all
> got gigabytes of ram these days, maybe nobody cares.

Why would it waste memory space?  Either way it's in some memory mapping
somewhere.  It's just a matter of what file it is associated with?  The
inode of the directory, or the underlying block device?