[PATCH 0/2] enable append-emulation for ZNS

From: Kanchan Joshi
Date: Tue Aug 18 2020 - 01:32:59 EST


Currently NVMe driver rejects the ZNS device if zone-append is not
supported natively.
Make it accept the device and activate append-emulation instead. This
is mostly borrowed from SCSI emulation.
The other patch enforces a zone-friendly I/O scheduler for ZNS.

Kanchan Joshi (2):
nvme: set io-scheduler requirement for ZNS
nvme: add emulation for zone-append

drivers/nvme/host/core.c | 41 +++++-
drivers/nvme/host/nvme.h | 60 ++++++++
drivers/nvme/host/zns.c | 307 ++++++++++++++++++++++++++++++++++++++-
3 files changed, 399 insertions(+), 9 deletions(-)

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2.17.1