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Switch miniublk to use > the ioctl-encoded UBLK_U_CMD_* and UBLK_U_IO_* variants defined in > linux/ublk_cmd.h instead. > > For IO commands, the ioctl-encoded opcode is used for submission while > _IOC_NR() extracts the raw NR bits for build_user_data(), keeping the > user_data tag encoding intact. Thanks for this v2 series. I applied the patches.