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H A Ddir.cdiff 5157da2ca42cbeca01709e29ce7b797cffed2432 Tue May 19 07:50:37 CDT 2020 Miklos Szeredi <mszeredi@redhat.com> fuse: always allow query of st_dev

Fuse mounts without "allow_other" are off-limits to all non-owners. Yet it
makes sense to allow querying st_dev on the root, since this value is
provided by the kernel, not the userspace filesystem.

Allow statx(2) with a zero request mask to succeed on a fuse mounts for all
users.

Reported-by: Nikolaus Rath <Nikolaus@rath.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>