1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * Basic library routines.
25 #ifndef __LIBCFS_LINUX_CFS_PRIM_H__
26 #define __LIBCFS_LINUX_CFS_PRIM_H__
28 #ifndef __LIBCFS_LIBCFS_H__
29 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
33 #include <linux/config.h>
34 #include <linux/module.h>
35 #include <linux/kernel.h>
36 #include <linux/version.h>
37 #include <linux/proc_fs.h>
39 #include <linux/timer.h>
41 #include <linux/miscdevice.h>
42 #include <libcfs/linux/portals_compat25.h>
43 #include <asm/div64.h>
45 #include <libcfs/linux/linux-time.h>
48 * Pseudo device register
50 typedef struct miscdevice cfs_psdev_t;
51 #define cfs_psdev_register(dev) misc_register(dev)
52 #define cfs_psdev_deregister(dev) misc_deregister(dev)
57 typedef struct ctl_table cfs_sysctl_table_t;
58 typedef struct ctl_table_header cfs_sysctl_table_header_t;
60 #define register_cfs_sysctl_table(t, a) register_sysctl_table(t, a)
61 #define unregister_cfs_sysctl_table(t) unregister_sysctl_table(t, a)
64 * Proc file system APIs
66 typedef read_proc_t cfs_read_proc_t;
67 typedef write_proc_t cfs_write_proc_t;
68 typedef struct proc_dir_entry cfs_proc_dir_entry_t;
69 #define cfs_create_proc_entry(n, m, p) create_proc_entry(n, m, p)
70 #define cfs_free_proc_entry(e) free_proc_entry(e)
71 #define cfs_remove_proc_entry(n, e) remove_proc_entry(n, e)
76 typedef wait_queue_t cfs_waitlink_t;
77 typedef wait_queue_head_t cfs_waitq_t;
79 #define cfs_waitq_init(w) init_waitqueue_head(w)
80 #define cfs_waitlink_init(l) init_waitqueue_entry(l, current)
81 #define cfs_waitq_add(w, l) add_wait_queue(w, l)
82 #define cfs_waitq_add_exclusive(w, l) add_wait_queue_exclusive(w, l)
83 #define cfs_waitq_forward(l, w) do {} while(0)
84 #define cfs_waitq_del(w, l) remove_wait_queue(w, l)
85 #define cfs_waitq_active(w) waitqueue_active(w)
86 #define cfs_waitq_signal(w) wake_up(w)
87 #define cfs_waitq_signal_nr(w,n) wake_up_nr(w, n)
88 #define cfs_waitq_broadcast(w) wake_up_all(w)
89 #define cfs_waitq_wait(l) schedule()
90 #define cfs_waitq_timedwait(l, t) schedule_timeout(t)
93 typedef int (*cfs_thread_t)(void *);
94 #define cfs_kernel_thread(func, a, f) kernel_thread(func, a, f)
99 typedef struct task_struct cfs_task_t;
100 #define cfs_current() current
101 #define CFS_DECL_JOURNAL_DATA void *journal_info
102 #define CFS_PUSH_JOURNAL do { \
103 journal_info = current->journal_info; \
104 current->journal_info = NULL; \
106 #define CFS_POP_JOURNAL do { \
107 current->journal_info = journal_info; \
110 /* Module interfaces */
111 #define cfs_module(name, version, init, fini) \
118 #define cfs_sigmask_lock(t, f) SIGNAL_MASK_LOCK(t, f)
119 #define cfs_sigmask_unlock(t, f) SIGNAL_MASK_UNLOCK(t, f)
120 #define cfs_recalc_sigpending(t) RECALC_SIGPENDING
121 #define cfs_signal_pending(t) signal_pending(t)
122 #define cfs_sigfillset(s) sigfillset(s)
124 #define cfs_set_sig_blocked(t, b) do { (t)->blocked = b; } while(0)
125 #define cfs_get_sig_blocked(t) (&(t)->blocked)
130 typedef struct timer_list cfs_timer_t;
131 typedef void (*timer_func_t)(unsigned long);
133 #define cfs_init_timer(t) init_timer(t)
135 static inline void cfs_timer_init(cfs_timer_t *t, void (*func)(unsigned long), void *arg)
138 t->function = (timer_func_t)func;
139 t->data = (unsigned long)arg;
142 static inline void cfs_timer_done(cfs_timer_t *t)
147 static inline void cfs_timer_arm(cfs_timer_t *t, cfs_time_t deadline)
149 mod_timer(t, deadline);
152 static inline void cfs_timer_disarm(cfs_timer_t *t)
157 static inline int cfs_timer_is_armed(cfs_timer_t *t)
159 return timer_pending(t);
162 static inline cfs_time_t cfs_timer_deadline(cfs_timer_t *t)
167 #else /* !__KERNEL__ */
169 #include "../user-prim.h"
171 #endif /* __KERNEL__ */