linux-kernel - Re: [PATCH v2 15/36] fs: add ksys_umount() helper; remove in-kernel call to sys

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Date:   Fri, 16 Mar 2018 01:47:50 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Dominik Brodowski <linux@...inikbrodowski.net>
Cc:     linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org,
        viro@...iv.linux.org.uk, luto@...nel.org, mingo@...nel.org,
        akpm@...ux-foundation.org, arnd@...db.de
Subject: Re: [PATCH v2 15/36] fs: add ksys_umount() helper; remove in-kernel
 call to sys_umount()

On Thu, Mar 15, 2018 at 08:05:08PM +0100, Dominik Brodowski wrote:
> Using this helper allows us to avoid the in-kernel call to the sys_umount()
> syscall.

kern_unmount, please.  And make it operate on kernel pointers please.