Re: [PATCH net] vhost: synchronize IOTLB message with dev cleanup

2018-05-24 Thread David Miller
From: Jason Wang Date: Tue, 22 May 2018 19:58:57 +0800 > DaeRyong Jeong reports a race between vhost_dev_cleanup() and > vhost_process_iotlb_msg(): > > Thread interleaving: > CPU0 (vhost_process_iotlb_msg)CPU1 (vhost_dev_cleanup) > (In the case of both VHOST_IOTLB_UPDATE

Re: [PATCH net] vhost: synchronize IOTLB message with dev cleanup

2018-05-24 Thread Michael S. Tsirkin
On Tue, May 22, 2018 at 07:58:57PM +0800, Jason Wang wrote: > DaeRyong Jeong reports a race between vhost_dev_cleanup() and > vhost_process_iotlb_msg(): > > Thread interleaving: > CPU0 (vhost_process_iotlb_msg)CPU1 (vhost_dev_cleanup) > (In the case of both VHOST_IOTLB_UPDA

Re: [PATCH net] vhost: synchronize IOTLB message with dev cleanup

2018-05-24 Thread David Miller
From: Jason Wang Date: Tue, 22 May 2018 19:58:57 +0800 > DaeRyong Jeong reports a race between vhost_dev_cleanup() and > vhost_process_iotlb_msg(): > > Thread interleaving: > CPU0 (vhost_process_iotlb_msg)CPU1 (vhost_dev_cleanup) > (In the case of both VHOST_IOTLB_UPDATE