[PATCH 0/3] vsock: Introduce SIOCINQ ioctl support

[Xuewei Niu]

This patchset introduces SIOCINQ ioctl support for vsock, indicating the
number of unread bytes.

Similar to SIOCOUTQ ioctl, the information is transport-dependent. The
first patch introduces a new callback, unread_bytes, in vsock transport,
and adds ioctl support in AF_VSOCK.

The second patch implements the SIOCINQ ioctl for all virtio-based transports.

The last one adds two test cases to check the functionality. The changes
have been tested, and the results are as expected.

Signed-off-by: Xuewei Niu <niuxuewei.nxw@xxxxxxxxxxxx>

Xuewei Niu (3):
  vsock: Add support for SIOCINQ ioctl
  vsock/virtio: Add SIOCINQ support for all virtio based transports
  test/vsock: Add ioctl SIOCINQ tests

 drivers/vhost/vsock.c                   |   1 +
 include/linux/virtio_vsock.h            |   2 +
 include/net/af_vsock.h                  |   2 +
 net/vmw_vsock/af_vsock.c                |  22 +++++
 net/vmw_vsock/virtio_transport.c        |   1 +
 net/vmw_vsock/virtio_transport_common.c |  17 ++++
 net/vmw_vsock/vsock_loopback.c          |   1 +
 tools/testing/vsock/vsock_test.c        | 102 ++++++++++++++++++++++++
 8 files changed, 148 insertions(+)

-- 
2.34.1