vhost: make vhost work queue visible
authorStefan Hajnoczi <stefanha@gmail.com>
Sat, 21 Jul 2012 06:55:37 +0000 (06:55 +0000)
committerMichael S. Tsirkin <mst@redhat.com>
Sat, 21 Jul 2012 22:22:23 +0000 (01:22 +0300)
commit163049aefdc04323a2d17ec9f2862027b43b0502
treeded687502545cabfd46676fe3bcadca6acbd3240
parent0dd05a3b60ddf0e216fbd9e5116a5273966fd9db
vhost: make vhost work queue visible

The vhost work queue allows processing to be done in vhost worker thread
context, which uses the owner process mm.  Access to the vring and guest
memory is typically only possible from vhost worker context so it is
useful to allow work to be queued directly by users.

Currently vhost_net only uses the poll wrappers which do not expose the
work queue functions.  However, for tcm_vhost (vhost_scsi) it will be
necessary to queue custom work.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: Zhi Yong Wu <wuzhy@cn.ibm.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
drivers/vhost/vhost.c
drivers/vhost/vhost.h