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From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH -V4 2/6] vfs: Add name to file handle conversion support
Date: Mon, 26 Apr 2010 05:52:08 -0400
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On Fri, Apr 23, 2010 at 04:02:14PM -0600, Andreas Dilger wrote:
> Out of curiosity, why not do this for other types of files?  It makes sense from a consistency POV, so that the userspace code doesn't have to special-case each file by checking the type first (which would mean doing an extra path traversal and stat for each file first, adding overhead).

This limitation seems to be copied from the original XFS handle code,
but I don't see any good reason to stay with it.