On Mon, Apr 21, 2025 at 01:59:50PM +0300, Jared Holzman wrote: > > From: Omri Mann <omri@xxxxxxxxxx> > > Currently ublk only allows the size of the ublkb block device to be > set via UBLK_CMD_SET_PARAMS before UBLK_CMD_START_DEV is triggered. > > This does not provide support for extendable user-space block devices > without having to stop and restart the underlying ublkb block device > causing IO interruption. > > This patch adds a new ublk command UBLK_U_CMD_UPDATE_SIZE to allow the > ublk block device to be resized on-the-fly. > > Feature flag UBLK_F_UPDATE_SIZE is also added to indicate support. > > Signed-off-by: Omri Mann <omri@xxxxxxxxxx> Looks good, Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> Thanks, Ming
