Re: fs: GPF in bd_mount

[Al Viro]

On Sun, Sep 04, 2016 at 03:06:06PM +0100, Al Viro wrote:

> Said that, I'm not sure why mount_pseudo() would be returning any errors;
> rejection should happen in the caller (due to MS_NOUSER in the flags), but
> I don't understand what would trigger it on mount_pseudo() level...

I see what's going on, but I wonder if sget() is the right place for userns
checks...