On Thu, 21 Jan 2021, Christian Brauner wrote:

Enable the vfs_utimes() helper to handle idmapped mounts by passing down
the mount's user namespace. If the initial user namespace is passed
nothing changes so non-idmapped mounts will see identical behavior as
before.

Link: https://lore.kernel.org/r/20210112220124.837960-26-christian.brauner@ubuntu.com (local)
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <redacted>

Reviewed-by: James Morris <redacted>


-- 
James Morris
[off-list ref]