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

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Date:   Wed, 10 Aug 2022 11:43:43 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     virtualization@...ts.linux-foundation.org
Cc:     Jason Wang <jasowang@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        linux-kernel@...r.kernel.org,
        Stefano Garzarella <sgarzare@...hat.com>
Subject: [PATCH v2 0/4] vdpa_sim_blk: add support for flush, discard, and write-zeroes

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@redhat.com/

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