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List: linux-fsdevel
Subject: Re: [RFC] support multiple max offset limits for a single
From: Chris Wedgwood <cw () f00f ! org>
Date: 2007-11-30 17:14:14
Message-ID: 20071130171414.GA5048 () puku ! stupidest ! org
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On Fri, Nov 30, 2007 at 10:35:01AM -0600, Eric Sandeen wrote:
> I could do the same for ext4, but Chris Mason prodded me to think of something
> more generic... this is what I came up with.
I think it (for now) should remain in the few file-systems that are
affected to avoid making a new ->i_op right now. If it turns out this
is a more commonly need in the future we could do this, but it seems a
bit heavy handy just yet given at present.
Also, it might turn at that it makes sense to to on-the-fly conversion
in the filesystem (where applicable) at some later stage, so this
wouldn't be useful there. I assume it's probably hard to convert a
large bitmap-based ext4 file to an extent-based one (how large can a
transaction be?) but that might not always be the case and it's
probably fine for smaller files.
> (BTW another option would be to convert old-format files when
> accessed, but that has its own set of tradeoffs...)
I think doing that where possible makes more sense. As I said above
I'm not sure how easy that is to do for all files, but then again fsck
could take care of those if prodded.
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