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Date: Mon, 31 Aug 2009 08:57:10 -0400
From: Mark Lord <lkml@rtr.ca>
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Subject: Re: xfs compat_ioctl?
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	<20090831123010.GA2368@infradead.org>
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To: Christoph Hellwig <hch@infradead.org>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>, Michael Tokarev <mjt@tls.msk.ru>, Linux-kernel <linux-kernel@vger.kernel.org>, xfs@oss.sgi.com

Christoph Hellwig wrote:
> 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.
..

What command-line flags were you using, Michael ?

I just tried a simple "xfs_growfs -d" here, and it worked fine.
This is 2.6.31-rc7-64bit on top of a 32-bit userland.

Cheers

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