kernel.git/drivers/vhost/vhost.c, branch linux-3.13.y

vhost: wake up worker outside spin_lock

2013-09-17T06:21:32Z

the wake_up_process func is included by spin_lock/unlock in vhost_work_queue, but it could be done outside the spin_lock. I have test it with kernel 3.0.27 and guest suse11-sp2 using iperf, the num as below. original modified thread_num tp(Gbps) vhost(%) | tp(Gbps) vhost(%) 1 9.59 28.82 | 9.59 27.49 8 9.61 32.92 | 9.62 26.77 64 9.58 46.48 | 9.55 38.99 256 9.6 63.7 | 9.6 52.59 Signed-off-by: Chuanyu Qin Signed-off-by: Michael S. Tsirkin

vhost: switch to use vhost_add_used_n()

2013-09-04T02:46:57Z

Let vhost_add_used() to use vhost_add_used_n() to reduce the code duplication. To avoid the overhead brought by __copy_to_user(). We will use put_user() when one used need to be added. Signed-off-by: Jason Wang Signed-off-by: David S. Miller

vhost: Include linux/uio.h instead of linux/socket.h

2013-08-20T22:05:04Z

memcpy_fromiovec is moved from net/core/iovec.c to lib/iovec.c. linux/uio.h provides the declaration for memcpy_fromiovec. Include linux/uio.h instead of inux/socket.h for it. Signed-off-by: Asias He Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller

vhost: Make vhost a separate module

2013-07-07T14:33:44Z

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: Simplify dev->vqs[i] access

2013-07-07T11:38:26Z

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

vhost: check owner before we overwrite ubuf_info

2013-06-11T09:46:21Z

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: drop virtio_net.h dependency

2013-05-06T11:04:06Z

There's no net specific code in vhost.c anymore, don't include the virtio_net.h header. Signed-off-by: Michael S. Tsirkin

vhost: Export vhost_dev_set_owner

2013-05-06T09:57:54Z

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

vhost: fix error handling in RESET_OWNER ioctl

2013-05-01T07:02:54Z

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

2013-05-01T07:02:53Z

This will remove the need for vhost scsi to pull in virtio-net.h. Signed-off-by: Michael S. Tsirkin