[dpdk-stable] [PATCH 1/3] vhost: fix deadlock due to vhostuser socket and fdset

[Luca Boccassi]

On Fri, 2018-04-27 at 07:48 -0700, xiangxia.m.yue at gmail.com wrote:
> From: Tonghao Zhang <xiangxia.m.yue at gmail.com>
> 
> When qemu close the unix socket fd of the vhostuser as a
> server, and then immediately delete the vhostuser port on
> openvswitch. There will be a deadlock.
> 
> A thread (fdset event thread):       B thread:
> 1. fdset_event_dispatch              rte_vhost_driver_unregister
> 2. set the fd busy to 1.             lock vsocket->conn_mutex
> 3. vhost_user_read_cb                fdset_del waits busy changed to
> 0.
> 4. vhost peer closed, remove the
>    conn from vsocket->conn_list:
>    lock vsocket->conn_mutex
> 
> 5. set the fd busy to 0
> 
> Fixes: 65388b43 ("vhost: fix fd leaks for vhost-user server mode")
> Cc: stable at dpdk.org
> Cc: Yuanhan Liu <yliu at fridaylinux.org>
> Signed-off-by: Tonghao Zhang <xiangxia.m.yue at gmail.com>

Hi, has a version of this series been merged into mainline?

-- 
Kind regards,
Luca Boccassi