On Mon, Feb 11, 2019 at 05:21:40PM +0100, Carlos Maiolino wrote: > I'm more than happy in see your reply, I'd love to finish this, but I got stuck > in how to make some filesystems deny a FIBMAP call once they do support FIEMAP > but not FIBMAP. > > I have this patch almost ready to go anyway. Do you agree in keep this flag in > fi_flags field? Or maybe some other place, dunno, maybe a new fi_private field. Have it in fi_flags as a purely in-kernel flag, and then deny the bmap calls through fiemap based on it.