linux-toradex.git/drivers/vhost/vhost.h, branch v3.10.78

vhost: check owner before we overwrite ubuf_info

2013-06-11T09:46:21+00:00

If device has an owner, we shouldn't touch ubuf_info
since it might be in use.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: David S. Miller

vhost: Remove vhost_enable_zcopy in vhost.h

2013-05-06T10:21:15+00:00

It is net.c specific.

Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost: Remove comments for hdr in vhost.h

2013-05-06T10:21:07+00:00

It is supposed to be removed when hdr is moved into vhost_net_virtqueue.

Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost: Move VHOST_NET_FEATURES to net.c

2013-05-06T10:21:00+00:00

vhost.h should not depend on device specific marcos like
VHOST_NET_F_VIRTIO_NET_HDR and VIRTIO_NET_F_MRG_RXBUF.

Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost: Export vhost_dev_set_owner

2013-05-06T09:57:54+00:00

Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost: fix error handling in RESET_OWNER ioctl

2013-05-01T07:02:54+00:00

RESET_OWNER ioctl would leave the fd in a bad state if
memory allocation failed: device is stopped
but owner is not reset. Make state changes
after allocating memory, such that a failed
ioctl has no effect.

Signed-off-by: Michael S. Tsirkin

vhost: move per-vq net specific fields out to net

2013-05-01T07:02:53+00:00

This will remove the need for vhost scsi to pull
in virtio-net.h.

Signed-off-by: Michael S. Tsirkin

vhost: move vhost-net zerocopy fields to net.c

2013-05-01T07:02:52+00:00

On top of 'vhost: Allow device specific fields per vq', we can move device
specific fields to device virt queue from vhost virt queue.

Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost: Allow device specific fields per vq

2013-05-01T07:02:45+00:00

This is useful for any device who wants device specific fields per vq.
For example, tcm_vhost wants a per vq field to track requests which are
in flight on the vq. Also, on top of this we can add patches to move
things like ubufs from vhost.h out to net.c.

Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Asias He 
Signed-off-by: Michael S. Tsirkin

vhost_net: handle polling errors when setting backend

2013-01-29T20:43:03+00:00

Currently, the polling errors were ignored, which can lead following issues:

- vhost remove itself unconditionally from waitqueue when stopping the poll,
  this may crash the kernel since the previous attempt of starting may fail to
  add itself to the waitqueue
- userspace may think the backend were successfully set even when the polling
  failed.

Solve this by:

- check poll->wqh before trying to remove from waitqueue
- report polling errors in vhost_poll_start(), tx_poll_start(), the return value
  will be checked and returned when userspace want to set the backend

After this fix, there still could be a polling failure after backend is set, it
will addressed by the next patch.

Signed-off-by: Jason Wang 
Acked-by: Michael S. Tsirkin 
Signed-off-by: David S. Miller