On Thu, Jan 11, 2024 at 04:11:38PM +0000, John Garry wrote: > Could we just error the SETXATTR ioctl when FS_XFLAG_FORCEALIGN is not set > (and it is required)? The problem is that ioctl reports -EINVAL for any > such errors, so hard for the user to know the issue... Sure. Pick a good unique error code, though.