Hi, > > > I don't come up with any use case, but I would like to make the > > > resource controller more flexible. Actually, a certain block device > > > that I'm using does not use the I/O scheduler. > > > > Isn't it equivalent to using No-op? If yes, then it should not be an > > issue? > > No, it is not equivalent. When using devices drivers that provide their > own make_request_fn() (check for devices that invoke > blk_queue_make_request() at initialization time) bios entering the block > layer can go directly to the device driver and from there to the device. As Fernando said, that device driver invokes blk_queue_make_request(), Thanks, Ryo Tsuruta _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
