On Fri, Jan 28, 2022 at 12:51:48AM -0800, Chaitanya Kulkarni wrote: > + if (ns->buffered_io) > + return -ENOTBLK; Maybe add a comment here that we want to force a fallback to the file backend for buffered I/O here as this check on it's own isn't totally obvious. Otherwise the series looks good to me.