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List:       linux-unionfs
Subject:    Re: [PATCH 2/4] nfs: check for NULL vfsmount in nfs_getattr
From:       Mark Fasheh <mfasheh () suse ! de>
Date:       2018-07-31 22:51:57
Message-ID: 20180731225157.GA20761 () wotan ! suse ! de
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Hi Al,

On Tue, Jul 31, 2018 at 11:16:05PM +0100, Al Viro wrote:
> On Tue, Jul 31, 2018 at 02:10:43PM -0700, Mark Fasheh wrote:
> > ->getattr from inside the kernel won't always have a vfsmount, check for
> > this.
> 
> Really?  Where would that happen?

It happens in my first patch. FWIW, I'm not tied to that particular bit of
code, or even this (latest) approach. I would actually very much appreciate
your input into how we might fix the problem we have where we are sometimes
not exporting a correct ino/dev pair to user space.

I have a good break-down of the problem and possible solutions here:

https://www.spinics.net/lists/linux-fsdevel/msg128003.html

Thanks,
	--Mark
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