On Wed, Jul 13, 2022 at 02:25:25PM -0600, Jens Axboe wrote: > On 7/13/22 8:07 AM, Ming Lei wrote: > > Hello Guys, > > > > ublk driver is one kernel driver for implementing generic userspace block > > device/driver, which delivers io request from ublk block device(/dev/ublkbN) into > > ublk server[1] which is the userspace part of ublk for communicating > > with ublk driver and handling specific io logic by its target module. > > Ming, is this ready to get merged in an experimental state? Hi Jens, Yeah, I think so. IO path can survive in xfstests(-g auto), and control path works well in ublksrv builtin hotplug & 'kill -9' daemon test. The UAPI data size should be good, but definition may change per future requirement change, so I think it is ready to go as experimental. If you are fine, please add the following delta change into patch 1, or let me know if resend is needed. diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index 2ba77fd960c2..e19fcab016ba 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -409,10 +409,13 @@ config BLK_DEV_RBD If unsure, say N. config BLK_DEV_UBLK - tristate "Userspace block driver" + tristate "Userspace block driver (Experimental)" select IO_URING help - io uring based userspace block driver. + io_uring based userspace block driver. Together with ublk server, ublk + has been working well, but interface with userspace or command data + definition isn't finalized yet, and might change according to future + requirement, so mark is as experimental now. source "drivers/block/rnbd/Kconfig" Thanks, Ming
