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To: Andrew Morton <akpm@digeo.com>
Cc: David Howells <dhowells@cambridge.redhat.com>,
       Rik van Riel <riel@conectiva.com.br>, torvalds@transmeta.com,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] do_generic_file_read / readahead adjustments 
In-Reply-To: Message from Andrew Morton <akpm@digeo.com> 
   of "Wed, 16 Oct 2002 11:03:38 PDT." <3DADA9FA.1D578A27@digeo.com> 
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Date: Wed, 16 Oct 2002 19:08:59 +0100
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From: David Howells <dhowells@cambridge.redhat.com>
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> David Howells wrote:
> > 
> > This patch is the alternative: make a function (do_generic_mapping_read())
> > that I can pass an inode or an address_space to, and make
> > do_generic_file_read() call that. This allows me to make use of readahead
> > semantics without having to reinvent them for myself.
> > 
> 
> OK.  The current readahead and mpage code is really designed just
> for ext2-style filesystems.  It was always expected that it would 
> have to grow as more sophisticated filesytems put demands upon it.
> 
> Your change is a perfectly sensible generalisation.  The reiserfs
> team have been making noises about lower-level readahead hooks as well,
> and I think your patch largely addresses those.  I shall ping them.

I'd just finished sending the patch to Linus. If you want to divert or stall
it, can you tell him.

David
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