freebsd-dev/sys/compat/linuxkpi/common/include/linux/kthread.h
Mark Johnston 8504aa9852 Add kthread parking support to the LinuxKPI.
Submitted by:	kmacy (original version)
Reviewed by:	hselasky
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D11264
2017-06-18 19:22:05 +00:00

74 lines
2.8 KiB
C

/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_KTHREAD_H_
#define _LINUX_KTHREAD_H_
#include <linux/sched.h>
#include <sys/unistd.h>
#include <sys/kthread.h>
#define kthread_run(fn, data, fmt, ...) ({ \
struct task_struct *__task; \
struct thread *__td; \
\
if (kthread_add(linux_kthread_fn, NULL, NULL, &__td, \
RFSTOPPED, 0, fmt, ## __VA_ARGS__)) \
__task = NULL; \
else \
__task = linux_kthread_setup_and_run(__td, fn, data); \
__task; \
})
int linux_kthread_stop(struct task_struct *);
bool linux_kthread_should_stop_task(struct task_struct *);
bool linux_kthread_should_stop(void);
int linux_kthread_park(struct task_struct *);
void linux_kthread_parkme(void);
bool linux_kthread_should_park(void);
void linux_kthread_unpark(struct task_struct *);
void linux_kthread_fn(void *);
struct task_struct *linux_kthread_setup_and_run(struct thread *,
linux_task_fn_t *, void *arg);
int linux_in_atomic(void);
#define kthread_stop(task) linux_kthread_stop(task)
#define kthread_should_stop() linux_kthread_should_stop()
#define kthread_should_stop_task(task) linux_kthread_should_stop_task(task)
#define kthread_park(task) linux_kthread_park(task)
#define kthread_parkme() linux_kthread_parkme()
#define kthread_should_park() linux_kthread_should_park()
#define kthread_unpark(task) linux_kthread_unpark(task)
#define in_atomic() linux_in_atomic()
#endif /* _LINUX_KTHREAD_H_ */