linux-stable/include/linux/sched/vhost_task.h
Mike Christie db5247d9bf 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>
2024-05-22 08:31:15 -04:00

15 lines
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C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_SCHED_VHOST_TASK_H
#define _LINUX_SCHED_VHOST_TASK_H
struct vhost_task;
struct vhost_task *vhost_task_create(bool (*fn)(void *),
void (*handle_kill)(void *), void *arg,
const char *name);
void vhost_task_start(struct vhost_task *vtsk);
void vhost_task_stop(struct vhost_task *vtsk);
void vhost_task_wake(struct vhost_task *vtsk);
#endif /* _LINUX_SCHED_VHOST_TASK_H */