On Mon, Mar 28, 2022 at 02:18:35PM +0300, Kirill Tkhai wrote: > The driver is request based, since this allows to use blk-mq > merging of request. Driver splits requests itself, and every > request (i.e., qio) after splitting fits a single cluster. > (In some cases it is worth to create bigger splits, and this > is a subject of further optimizations). Nak, please don't do that. If you want finer grained processing use a bio based driver, not a request based one. This is just getting us into tons of problems.