[PATCH v6 28/40] overlayfs: do not mount on top of idmapped mounts

[James Morris]

On Thu, 21 Jan 2021, Christian Brauner wrote:

> Prevent overlayfs from being mounted on top of idmapped mounts.
> Stacking filesystems need to be prevented from being mounted on top of
> idmapped mounts until they have have been converted to handle this.
> 
> Link: https://lore.kernel.org/r/20210112220124.837960-40-christian.brauner@ubuntu.com
> Cc: Christoph Hellwig <hch at lst.de>
> Cc: David Howells <dhowells at redhat.com>
> Cc: Al Viro <viro at zeniv.linux.org.uk>
> Cc: linux-fsdevel at vger.kernel.org
> Signed-off-by: Christian Brauner <christian.brauner at ubuntu.com>


Reviewed-by: James Morris <jamorris at linux.microsoft.com>


-- 
James Morris
<jmorris at namei.org>