diff options
| author | Mike Christie <michael.christie@oracle.com> | 2024-03-15 19:47:06 -0500 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2024-05-22 08:31:15 -0400 |
| commit | db5247d9bf5c6ade9fd70b4e4897441e0269b233 (patch) | |
| tree | cfec480a97ddaaf073d69cf6ed272a2edf18ecb4 /drivers/vhost/vhost.h | |
| parent | ba704ff4e142fd3cfaf3379dd3b3b946754e06e3 (diff) | |
vhost_task: Handle SIGKILL by flushing work and exiting
Instead of lingering until the device is closed, this has us handle
SIGKILL by:
1. marking the worker as killed so we no longer try to use it with
new virtqueues and new flush operations.
2. setting the virtqueue to worker mapping so no new works are queued.
3. running all the exiting works.
Suggested-by: Edward Adam Davis <eadavis@qq.com>
Reported-and-tested-by: syzbot+98edc2df894917b3431f@syzkaller.appspotmail.com
Message-Id: <tencent_546DA49414E876EEBECF2C78D26D242EE50A@qq.com>
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20240316004707.45557-9-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/vhost/vhost.h')
| -rw-r--r-- | drivers/vhost/vhost.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h index 91ade037f08e..bb75a292d50c 100644 --- a/drivers/vhost/vhost.h +++ b/drivers/vhost/vhost.h @@ -28,12 +28,14 @@ struct vhost_work { struct vhost_worker { struct vhost_task *vtsk; + struct vhost_dev *dev; /* Used to serialize device wide flushing with worker swapping. */ struct mutex mutex; struct llist_head work_list; u64 kcov_handle; u32 id; int attachment_cnt; + bool killed; }; /* Poll a file (eventfd or socket) */ |