[Qemu-block] [PATCH 0/2] two more NVMe commands

[Christoph Hellwig]

Hi all,

this series implements two more NVMe commands: DSM and Write Zeroes.
Both trace their lineage to Keith's qemu-nvme.git repository, and
while the Write Zeroes one is taken from there almost literally
the DSM one has seen a major rewrite to not block the main thread
as well as various other small improvements.