1 /*
2 * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
3 * Copyright (C) 2007 The Regents of the University of California.
4 * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
5 * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
6 * UCRL-CODE-235197
7 *
8 * This file is part of the SPL, Solaris Porting Layer.
9 *
10 * The SPL is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by the
12 * Free Software Foundation; either version 2 of the License, or (at your
13 * option) any later version.
14 *
15 * The SPL is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 * for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with the SPL. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #ifndef _SPL_THREAD_H
25 #define _SPL_THREAD_H
26
27 #include <linux/module.h>
28 #include <linux/mm.h>
29 #include <linux/spinlock.h>
30 #include <linux/kthread.h>
31 #include <sys/types.h>
32 #include <sys/sysmacros.h>
33 #include <sys/tsd.h>
34
35 /*
36 * Thread interfaces
37 */
38 #define TP_MAGIC 0x53535353
39
40 #define TS_SLEEP TASK_INTERRUPTIBLE
41 #define TS_RUN TASK_RUNNING
42 #define TS_ZOMB EXIT_ZOMBIE
43 #define TS_STOPPED TASK_STOPPED
44
45 typedef void (*thread_func_t)(void *);
46
47 #define thread_create_named(name, stk, stksize, func, arg, len, \
48 pp, state, pri) \
49 __thread_create(stk, stksize, (thread_func_t)func, \
50 name, arg, len, pp, state, pri)
51
52 #define thread_create(stk, stksize, func, arg, len, pp, state, pri) \
53 __thread_create(stk, stksize, (thread_func_t)func, #func, \
54 arg, len, pp, state, pri)
55
56 #define thread_exit() spl_thread_exit()
57 #define thread_join(t) VERIFY(0)
58 #define curthread current
59 #define getcomm() current->comm
60 #define getpid() current->pid
61
62 extern kthread_t *__thread_create(caddr_t stk, size_t stksize,
63 thread_func_t func, const char *name, void *args, size_t len, proc_t *pp,
64 int state, pri_t pri);
65 extern struct task_struct *spl_kthread_create(int (*func)(void *),
66 void *data, const char namefmt[], ...);
67
68 static inline __attribute__((noreturn)) void
spl_thread_exit(void)69 spl_thread_exit(void)
70 {
71 tsd_exit();
72 SPL_KTHREAD_COMPLETE_AND_EXIT(NULL, 0);
73 }
74
75 extern proc_t p0;
76
77 #ifdef HAVE_SIGINFO
78 typedef kernel_siginfo_t spl_kernel_siginfo_t;
79 #else
80 typedef siginfo_t spl_kernel_siginfo_t;
81 #endif
82
83 #ifdef HAVE_SET_SPECIAL_STATE
84 #define spl_set_special_state(x) set_special_state((x))
85 #else
86 #define spl_set_special_state(x) __set_current_state((x))
87 #endif
88
89
90 #endif /* _SPL_THREAD_H */
91