[PATCH hci-8.1 v2 0/2] vhost-blk: switch from VHOST_SET_NWORKERS to the mainstream worker ioctls

[Alexander Ivanov <alexander.ivanov@virtuozzo.com>]

The kernel drops our VHOST_SET_NWORKERS ioctl in favour of the
mainstream VHOST_NEW_WORKER/VHOST_ATTACH_VRING_WORKER, which vhost-blk
now supports.

Patch 1 makes vhost-blk create its num-threads workers with the
mainstream ioctls, keeping the same worker layout, and fall back to a
single thread on a kernel without them. Patch 2 drops
VHOST_SET_NWORKERS from linux-headers.

v2:
- patch 1: clamp num-threads to VHOST_BLK_MAX_QUEUES
- patch 1: note in the commit message that our kernel, unlike
  mainline, defaults to kthreads

https://virtuozzo.atlassian.net/browse/VSTOR-107537

Alexander Ivanov (2):
  vhost-blk: create kernel threads with the mainstream worker ioctls
  linux-headers: drop VHOST_SET_NWORKERS

 hw/block/vhost-blk.c        | 76 +++++++++++++++++++++++++++++++++++--
 linux-headers/linux/vhost.h |  9 -----
 2 files changed, 72 insertions(+), 13 deletions(-)

-- 
2.53.0