4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2017, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #ifndef __LIBCFS_LINUX_LIBCFS_H__
34 #define __LIBCFS_LINUX_LIBCFS_H__
36 #ifndef __LIBCFS_LIBCFS_H__
37 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
41 #error This include is only for kernel use.
44 #include <linux/bitops.h>
45 #include <linux/compiler.h>
46 #include <linux/ctype.h>
47 #include <linux/errno.h>
48 #include <linux/file.h>
50 #include <linux/highmem.h>
51 #include <linux/interrupt.h>
52 #include <linux/kallsyms.h>
53 #include <linux/kernel.h>
54 #include <linux/kmod.h>
55 #include <linux/kthread.h>
57 #include <linux/module.h>
58 #include <linux/moduleparam.h>
59 #include <linux/mutex.h>
60 #include <linux/notifier.h>
61 #include <linux/random.h>
62 #include <linux/rbtree.h>
63 #include <linux/rwsem.h>
64 #include <linux/scatterlist.h>
65 #include <linux/sched.h>
66 #ifdef HAVE_SCHED_HEADERS
67 #include <linux/sched/signal.h>
68 #include <linux/sched/mm.h>
70 #include <linux/signal.h>
71 #include <linux/slab.h>
72 #include <linux/smp.h>
73 #include <linux/stat.h>
74 #include <linux/string.h>
75 #include <linux/time.h>
76 #include <linux/timer.h>
77 #include <linux/types.h>
78 #include <linux/unistd.h>
79 #include <linux/vmalloc.h>
81 #include <linux/atomic.h>
82 #include <asm/div64.h>
83 #include <linux/timex.h>
84 #include <linux/uaccess.h>
87 #include <libcfs/linux/linux-cpu.h>
88 #include <libcfs/linux/linux-time.h>
89 #include <libcfs/linux/linux-mem.h>
90 #include <libcfs/linux/linux-misc.h>
91 #include <libcfs/linux/linux-fs.h>
93 #if !defined(__x86_64__)
95 # define CDEBUG_STACK() (THREAD_SIZE - \
96 ((unsigned long)__builtin_dwarf_cfa() & \
99 # define CDEBUG_STACK() (THREAD_SIZE - \
100 ((unsigned long)__builtin_frame_address(0) & \
102 # endif /* __ia64__ */
104 #define __CHECK_STACK(msgdata, mask, cdls) \
106 if (unlikely(CDEBUG_STACK() > libcfs_stack)) { \
107 LIBCFS_DEBUG_MSG_DATA_INIT(msgdata, D_WARNING, NULL); \
108 libcfs_stack = CDEBUG_STACK(); \
109 libcfs_debug_msg(msgdata, \
110 "maximum lustre stack %lu\n", \
112 (msgdata)->msg_mask = mask; \
113 (msgdata)->msg_cdls = cdls; \
118 #define CFS_CHECK_STACK(msgdata, mask, cdls) __CHECK_STACK(msgdata, mask, cdls)
119 #else /* __x86_64__ */
120 #define CFS_CHECK_STACK(msgdata, mask, cdls) do {} while(0)
121 #define CDEBUG_STACK() (0L)
122 #endif /* __x86_64__ */
125 * Platform specific declarations for cfs_curproc API (libcfs/curproc.h)
127 * Implementation is in linux-curproc.c
129 #define CFS_CURPROC_COMM_MAX (sizeof ((struct task_struct *)0)->comm)
131 /* helper for sysctl handlers */
132 int lprocfs_call_handler(void *data, int write, loff_t *ppos,
133 void __user *buffer, size_t *lenp,
134 int (*handler)(void *data, int write,
135 loff_t pos, void __user *buffer, int len));
137 #ifndef WITH_WATCHDOG
138 #define WITH_WATCHDOG
142 * Macros to access common characteristics of "current" UNIX process.
144 #define current_pid() (current->pid)
145 #define current_comm() (current->comm)
147 /* check if task is running in compat mode.*/
148 int current_is_32bit(void);
150 #endif /* _LINUX_LIBCFS_H */