linux-kernel - Re: compat ioctl32 for /dev/snapshot?

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Date:	Tue, 5 May 2009 13:38:45 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Andi Kleen <andi@...stfloor.org>, Michael Tokarev <mjt@....msk.ru>,
	"Linux-kernel" <linux-kernel@...r.kernel.org>
Subject: Re: compat ioctl32 for /dev/snapshot?

On Monday 04 May 2009, Rafael J. Wysocki wrote:
> In fact I don't think the 32-bit user space will work with 64-bit kernels as is
> in this particular case, because of the different pointer size.
> 
> Having a quick look at the code (I don't remember the details right now)
> I think most probably it could be modified to handle this case too, but I'm not
> really sure.

I don't see anything in the snapshot code that passes pointers to the
kernel, so why should the pointer size matter?

	Arnd <><
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