1e3db1de0c
A set of helper functions have been added to manage the life of the LinuxKPI task struct. When an external system call or task is invoked, a check is made to create the task struct by demand. A thread destructor callback is registered to free the task struct when a thread exits to avoid memory leaks. This change lays the ground for emulating the Linux kernel more closely which is a dependency by the code using the LinuxKPI APIs. Add new dedicated td_lkpi_task field has been added to struct thread instead of abusing td_retval[1]. Fix some header file inclusions to make LINT kernel build properly after this change. Bump the __FreeBSD_version to force a rebuild of all kernel modules. MFC after: 1 week Sponsored by: Mellanox Technologies
58 lines
2.2 KiB
C
58 lines
2.2 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; \
|
|
})
|
|
|
|
extern int kthread_stop(struct task_struct *);
|
|
extern bool kthread_should_stop_task(struct task_struct *);
|
|
extern bool kthread_should_stop(void);
|
|
extern void linux_kthread_fn(void *);
|
|
extern struct task_struct *linux_kthread_setup_and_run(struct thread *, linux_task_fn_t *, void *arg);
|
|
|
|
#endif /* _LINUX_KTHREAD_H_ */
|