1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
4 * Copyright (C) 2007 The Regents of the University of California.
5 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
6 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
7 * UCRL-CODE-235197
8 *
9 * This file is part of the SPL, Solaris Porting Layer.
10 *
11 * The SPL is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License as published by the
13 * Free Software Foundation; either version 2 of the License, or (at your
14 * option) any later version.
15 *
16 * The SPL is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 * for more details.
20 *
21 * You should have received a copy of the GNU General Public License along
22 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
23 */
24
25 #ifndef _SPL_THREAD_H
26 #define _SPL_THREAD_H
27
28 #include <linux/module.h>
29 #include <linux/mm.h>
30 #include <linux/spinlock.h>
31 #include <linux/kthread.h>
32 #include <sys/types.h>
33 #include <sys/sysmacros.h>
34 #include <sys/tsd.h>
35
36 /*
37 * Thread interfaces
38 */
39 #define TP_MAGIC 0x53535353
40
41 #define TS_SLEEP TASK_INTERRUPTIBLE
42 #define TS_RUN TASK_RUNNING
43 #define TS_ZOMB EXIT_ZOMBIE
44 #define TS_STOPPED TASK_STOPPED
45
46 typedef void (*thread_func_t)(void *) __attribute__((noreturn));
47
48 #define thread_create_named(name, stk, stksize, func, arg, len, \
49 pp, state, pri) \
50 __thread_create(stk, stksize, (thread_func_t)func, \
51 name, arg, len, pp, state, pri)
52
53 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
54 __thread_create(stk, stksize, (thread_func_t)func, #func, \
55 arg, len, pp, state, pri)
56
57 #define thread_exit() spl_thread_exit()
58 #define thread_join(t) VERIFY(0)
59 #define curthread current
60 #define getcomm() current->comm
61 #define getpid() current->pid
62
63 extern kthread_t *__thread_create(caddr_t stk, size_t stksize,
64 thread_func_t func, const char *name, void *args, size_t len, proc_t *pp,
65 int state, pri_t pri);
66 extern struct task_struct *spl_kthread_create(int (*func)(void *),
67 void *data, const char namefmt[], ...);
68
69 static inline __attribute__((noreturn)) void
spl_thread_exit(void)70 spl_thread_exit(void)
71 {
72 tsd_exit();
73 SPL_KTHREAD_COMPLETE_AND_EXIT(NULL, 0);
74 }
75
76 extern proc_t p0;
77
78 #ifdef HAVE_SIGINFO
79 typedef kernel_siginfo_t spl_kernel_siginfo_t;
80 #else
81 typedef siginfo_t spl_kernel_siginfo_t;
82 #endif
83
84 #endif /* _SPL_THREAD_H */
85