On Tue, May 23, 2023 at 12:34:38PM -0700, Bart Van Assche wrote: >> What makes sequential writes here special vs other requests that are >> supposed to be using the scheduler and not a bypass? > > Hi Christoph, > > If some REQ_OP_WRITE or REQ_OP_WRITE_ZEROES requests are submitted to the > I/O scheduler and others bypass the I/O scheduler this may lead to > reordering. Hence this patch that triggers a kernel warning if any > REQ_OP_WRITE or REQ_OP_WRITE_ZEROES requests bypass the I/O scheduler. But why would we ever do a direct insert when using a scheduler for write (an read for that matter) commands when not on a zoned device?
