linux-kernel - Re: linux-next: Tree for December 18 (fscache)

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Message-ID: <6448.1229622476@redhat.com>
Date:	Thu, 18 Dec 2008 17:47:56 +0000
From:	David Howells <dhowells@...hat.com>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	dhowells@...hat.com, Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: Tree for December 18 (fscache)

Randy Dunlap <randy.dunlap@...cle.com> wrote:

> Should include/linux/buffer_head.h have an empty stub for fsync_super()
> or does fscache even make sense when CONFIG_BLOCK=n?

FS-Cache might.  CacheFiles probably doesn't.

There've been discussions about a separate caching backend to deal with
non-rotating media such as large chunks of battery-backed RAM or flash.
FS-Cache might make sense in such a situation as these could be accessed in
other ways (such as through MTD or even directly).

I'll make CONFIG_CACHEFILES dependent on CONFIG_BLOCK.

David
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