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Date: Sat, 27 Oct 2007 17:43:52 -0700
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Mike Waychison <mikew@google.com>
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Subject: Re: [patch 0/6][RFC] Cleanup FIBMAP
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Mike Waychison wrote:
> The following series is meant to clean up FIBMAP paths with the eventual goal of allowing users to be able to FIBMAP their data.

Keep in mind FIBMAP is currently extremely expensive on some 
filesystems, e.g. ext3.  Therefore, additional filesystem-level work 
would have to be done in order for this not become a DoS issue.

	-hpa