1 /*- 2 * Copyright (c) 2010 Isilon Systems, Inc. 3 * Copyright (c) 2010 iX Systems, Inc. 4 * Copyright (c) 2010 Panasas, Inc. 5 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 #ifndef _LINUX_KTHREAD_H_ 32 #define _LINUX_KTHREAD_H_ 33 34 #include <linux/sched.h> 35 36 #include <sys/unistd.h> 37 #include <sys/kthread.h> 38 39 #define kthread_run(fn, data, fmt, ...) ({ \ 40 struct task_struct *__task; \ 41 struct thread *__td; \ 42 \ 43 if (kthread_add(linux_kthread_fn, NULL, NULL, &__td, \ 44 RFSTOPPED, 0, fmt, ## __VA_ARGS__)) \ 45 __task = NULL; \ 46 else \ 47 __task = linux_kthread_setup_and_run(__td, fn, data); \ 48 __task; \ 49 }) 50 51 int linux_kthread_stop(struct task_struct *); 52 bool linux_kthread_should_stop_task(struct task_struct *); 53 bool linux_kthread_should_stop(void); 54 int linux_kthread_park(struct task_struct *); 55 void linux_kthread_parkme(void); 56 bool linux_kthread_should_park(void); 57 void linux_kthread_unpark(struct task_struct *); 58 void linux_kthread_fn(void *); 59 struct task_struct *linux_kthread_setup_and_run(struct thread *, 60 linux_task_fn_t *, void *arg); 61 int linux_in_atomic(void); 62 63 #define kthread_stop(task) linux_kthread_stop(task) 64 #define kthread_should_stop() linux_kthread_should_stop() 65 #define kthread_should_stop_task(task) linux_kthread_should_stop_task(task) 66 #define kthread_park(task) linux_kthread_park(task) 67 #define kthread_parkme() linux_kthread_parkme() 68 #define kthread_should_park() linux_kthread_should_park() 69 #define kthread_unpark(task) linux_kthread_unpark(task) 70 71 #define in_atomic() linux_in_atomic() 72 73 #endif /* _LINUX_KTHREAD_H_ */ 74