[PATCH kernel-4.19 0/2] virtio_blk: add discard and write zeroes support

virtio_blk: add discard and write zeroes support, mainly for guest os

xuliqun (2): virtio_blk: add discard and write zeroes support virtio_blk: fix handling single range discard request

drivers/block/virtio_blk.c | 98 ++++++++++++++++++++++++++++++++++++++++- include/uapi/linux/virtio_blk.h | 54 +++++++++++++++++++++++ 2 files changed, 150 insertions(+), 2 deletions(-)