linux-kernel - Re: xfs compat

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Message-ID: <20090831123010.GA2368@infradead.org>
Date:	Mon, 31 Aug 2009 08:30:10 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Michael Tokarev <mjt@....msk.ru>
Cc:	Linux-kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>, xfs@....sgi.com
Subject: Re: xfs compat_ioctl?

On Mon, Aug 31, 2009 at 11:02:51AM +0400, Michael Tokarev wrote:
> Hello!
>
> I tried to resize an xfs filesystem on 64bit 2.6.30 kernel
> using 32bit userland, and that does not work, in dmesg I see:
>
> ioctl32(xfs_growfs:24426): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ffa56df4) on /mnt
> ioctl32(xfs_growfs:24427): Unknown cmd fd(3) cmd(400c586e){t:'X';sz:12} arg(ff991254) on /mnt
>
> so apparently there's no compat_ioctl layer for these ioctls.
>
> Are there any plans to add these? :)

Are you sure you're testing 2.6.30?  The copat ioctls were added in
2.6.28.
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