[PATCH v2 0/4] vdpa_sim_blk: add support for flush, discard, and write-zeroes

[Stefano Garzarella]

The first 2 patches are in preparation and generalize parts later used
by the following patches that add handling of flush, discard, and
write-zeroes requests.

v2:
- rebased on https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git
- used dev_dbg() to print errors [Jason]
- moved sector to be 0 checking to another patch and generalized for
  other requests
- modified vdpasim_blk_check_range() to be used also with discard and
  write-zeroes
- added discard and write-zeroes requests handling

v1: https://lore.kernel.org/virtualization/20220428151242.213824-1-sgarzare@xxxxxxxxxx/

Tree available here:
https://gitlab.com/sgarzarella/linux.git vdpa-sim-blk-flush-discard-wz

Thanks,
Stefano

Stefano Garzarella (4):
  vdpa_sim_blk: check if sector is 0 for commands other than read or
    write
  vdpa_sim_blk: make vdpasim_blk_check_range usable by other requests
  vdpa_sim_blk: add support for VIRTIO_BLK_T_FLUSH
  vdpa_sim_blk: add support for discard and write-zeroes

 drivers/vdpa/vdpa_sim/vdpa_sim_blk.c | 127 +++++++++++++++++++++++----
 1 file changed, 111 insertions(+), 16 deletions(-)

-- 
2.37.1