1 /*
2 * Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29 #ifndef _OPENSOLARIS_SYS_PROC_H_
30 #define _OPENSOLARIS_SYS_PROC_H_
31
32 #include <sys/param.h>
33 #include <sys/kthread.h>
34 #include_next <sys/proc.h>
35 #include <sys/stdint.h>
36 #include <sys/smp.h>
37 #include <sys/sched.h>
38 #include <sys/lock.h>
39 #include <sys/mutex.h>
40 #include <sys/unistd.h>
41 #include <sys/kmem.h>
42 #include <sys/malloc.h>
43
44 #ifdef _KERNEL
45 #define CPU curcpu
46 #define minclsyspri PRIBIO
47 #define defclsyspri minclsyspri
48 #define maxclsyspri PVM
49 #define max_ncpus (mp_maxid + 1)
50 #define boot_max_ncpus (mp_maxid + 1)
51
52 #define TS_RUN 0
53
54 #define p0 proc0
55
56 #define t_tid td_tid
57
58 typedef short pri_t;
59 typedef struct thread _kthread;
60 typedef struct thread kthread_t;
61 typedef struct thread *kthread_id_t;
62 typedef struct proc proc_t;
63
64 extern proc_t *system_proc;
65
66 static __inline kthread_t *
do_thread_create(caddr_t stk,size_t stksize,void (* proc)(void *),void * arg,size_t len,proc_t * pp,int state,pri_t pri,const char * name)67 do_thread_create(caddr_t stk, size_t stksize, void (*proc)(void *), void *arg,
68 size_t len, proc_t *pp, int state, pri_t pri, const char *name)
69 {
70 kthread_t *td = NULL;
71 proc_t **ppp;
72 int error;
73
74 /*
75 * Be sure there are no surprises.
76 */
77 ASSERT(stk == NULL);
78 ASSERT(len == 0);
79 ASSERT(state == TS_RUN);
80
81 if (pp == &p0)
82 ppp = &system_proc;
83 else
84 ppp = &pp;
85 error = kproc_kthread_add(proc, arg, ppp, &td, RFSTOPPED,
86 stksize / PAGE_SIZE, "zfskern", "%s", name);
87 if (error == 0) {
88 thread_lock(td);
89 sched_prio(td, pri);
90 sched_add(td, SRQ_BORING);
91 #if __FreeBSD_version < 1300068
92 thread_unlock(td);
93 #endif
94 }
95 return (td);
96 }
97
98 #define thread_create_named(name, stk, stksize, proc, arg, len, \
99 pp, state, pri) \
100 do_thread_create(stk, stksize, proc, arg, len, pp, state, pri, name)
101 #define thread_create(stk, stksize, proc, arg, len, pp, state, pri) \
102 do_thread_create(stk, stksize, proc, arg, len, pp, state, pri, #proc)
103 #define thread_exit() kthread_exit()
104
105 int uread(proc_t *, void *, size_t, uintptr_t);
106 int uwrite(proc_t *, void *, size_t, uintptr_t);
107
108 static inline boolean_t
zfs_proc_is_caller(proc_t * p)109 zfs_proc_is_caller(proc_t *p)
110 {
111 return (p == curproc);
112 }
113
114 #endif /* _KERNEL */
115 #endif /* _OPENSOLARIS_SYS_PROC_H_ */
116