ACK: [PATCH v1][SRU][Disco] UBUNTU: SAUCE: shiftfs: lock down certain superblock flags

Seth Forshee seth.forshee at
Tue May 14 12:08:52 UTC 2019

On Wed, May 08, 2019 at 02:13:14PM +0200, Christian Brauner wrote:
> From: Christian Brauner <christian at>
> BugLink:
> This locks down various superblock flags to prevent userns-root from
> remounting a superblock with less restrictive options than the original
> mark or underlay mount.
> Signed-off-by: Christian Brauner <christian.brauner at>

Looks good to me.

Acked-by: Seth Forshee <seth.forshee at>

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