linux.git/drivers/vhost/vhost.h, branch v3.17

vhost: move memory pointer to VQs

2014-06-09T13:21:07+00:00

commit 2ae76693b8bcabf370b981cd00c36cd41d33fabc
    vhost: replace rcu with mutex
replaced rcu sync for memory accesses with VQ mutex locl/unlock.
This is correct since all accesses are under VQ mutex, but incomplete:
we still do useless rcu lock/unlock operations, someone might copy this
code into some other context where this won't be right.
This use of RCU is also non standard and hard to understand.
Let's copy the pointer to each VQ structure, this way
the access rules become straight-forward, and there's
no need for RCU anymore.

Reported-by: Eric Dumazet 
Signed-off-by: Michael S. Tsirkin

vhost: move acked_features to VQs

2014-06-09T13:21:06+00:00

Refactor code to make sure features are only accessed
under VQ mutex. This makes everything simpler, no need
for RCU here anymore.

Signed-off-by: Michael S. Tsirkin

vhost: remove the dead branch

2013-12-06T20:22:05+00:00

Since vhost_dev_init() forever return 0, some branches are never run,
therefore need to be removed.

Signed-off-by: Zhi Yong Wu 
Acked-by: Michael S. Tsirkin 
Signed-off-by: David S. Miller

vhost: Remove custom vhost rcu usage

2013-07-11T12:38:40+00:00

Now, vq->private_data is always accessed under vq mutex. No need to play
the vhost rcu trick.

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

vhost: Make vhost a separate module

2013-07-07T14:33:44+00:00

Currently, vhost-net and vhost-scsi are sharing the vhost core code.
However, vhost-scsi shares the code by including the vhost.c file
directly.

Making vhost a separate module makes it is easier to share code with
other vhost devices.

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

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