linux-kernel - Re: [PATCH 1/1] hostfs: fix UML crash

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Date:	Tue, 19 Oct 2010 12:27:26 +0200
From:	Richard Weinberger <richard@....at>
To:	Christoph Hellwig <hch@....de>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	<linux-kernel@...r.kernel.org>, <jdike@...toit.com>,
	<user-mode-linux-devel@...ts.sourceforge.net>,
	<viro@...iv.linux.org.uk>, <toralf.foerster@....de>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 1/1] hostfs: fix UML crash

On Tue, 19 Oct 2010 03:11:25 +0200, Christoph Hellwig <hch@....de>
wrote:
> On Mon, Oct 18, 2010 at 01:02:08PM -0700, Andrew Morton wrote:
>> > >
>> > > Is there any reason for hostfs to be playing with the f_spare field at all?
> 
> No, there is no reason at all.  do_statfs is only called by
> hostfs_statfs, which is the hostfs implementation of ->statfs.  zeroing
> of the spare fields is done by common code (vfs_statfs_native).

Thanks!

> Can you submit a patch to just remove the spare_out argument to do_statfs?

Sure.
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