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Date: Fri, 29 Jul 2016 20:02:11 +0200
From: Jann Horn <>
	Elena Reshetova <>
Subject: Re: [RFC] [PATCH 3/5] sb_unsharefs LSM hook

On Fri, Jul 29, 2016 at 10:34:38AM +0300, Elena Reshetova wrote:
> This adds a new security_sb_unsharefs() LSM hook.
> It can be used by LSMs concerned about unsharefs()
> system call.

There is no unsharefs() system call. Your patch touches a kernel function
unshare_fs_struct() that is called by the NFS server kernel thread and
some lustre stuff, which also looks like kernel threads.

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