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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2012, 2014, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef __LIBCFS_LINUX_LIBCFS_H__
38 #define __LIBCFS_LINUX_LIBCFS_H__
40 #ifndef __LIBCFS_LIBCFS_H__
41 #error Do not #include this file directly. #include <libcfs/libcfs.h> instead
45 #error This include is only for kernel use.
50 #include <libcfs/linux/linux-cpu.h>
51 #include <libcfs/linux/linux-time.h>
52 #include <libcfs/linux/linux-mem.h>
53 #include <libcfs/linux/linux-fs.h>
54 #include <libcfs/linux/kp30.h>
56 #ifdef HAVE_ASM_TYPES_H
57 #include <asm/types.h>
59 #include <linux/types.h>
60 #include <asm/timex.h>
61 #include <linux/sched.h> /* THREAD_SIZE */
62 #include <linux/rbtree.h>
63 #include <linux/bitops.h>
65 #if !defined(__x86_64__)
67 # define CDEBUG_STACK() (THREAD_SIZE - \
68 ((unsigned long)__builtin_dwarf_cfa() & \
71 # define CDEBUG_STACK() (THREAD_SIZE - \
72 ((unsigned long)__builtin_frame_address(0) & \
74 # endif /* __ia64__ */
76 #define __CHECK_STACK(msgdata, mask, cdls) \
78 if (unlikely(CDEBUG_STACK() > libcfs_stack)) { \
79 LIBCFS_DEBUG_MSG_DATA_INIT(msgdata, D_WARNING, NULL); \
80 libcfs_stack = CDEBUG_STACK(); \
81 libcfs_debug_msg(msgdata, \
82 "maximum lustre stack %lu\n", \
84 (msgdata)->msg_mask = mask; \
85 (msgdata)->msg_cdls = cdls; \
90 #define CFS_CHECK_STACK(msgdata, mask, cdls) __CHECK_STACK(msgdata, mask, cdls)
91 #else /* __x86_64__ */
92 #define CFS_CHECK_STACK(msgdata, mask, cdls) do {} while(0)
93 #define CDEBUG_STACK() (0L)
94 #endif /* __x86_64__ */
97 * Platform specific declarations for cfs_curproc API (libcfs/curproc.h)
99 * Implementation is in linux-curproc.c
101 #define CFS_CURPROC_COMM_MAX (sizeof ((struct task_struct *)0)->comm)
103 /* helper for sysctl handlers */
104 int lprocfs_call_handler(void *data, int write, loff_t *ppos,
105 void __user *buffer, size_t *lenp,
106 int (*handler)(void *data, int write,
107 loff_t pos, void __user *buffer, int len));
109 #include <linux/capability.h>
112 * No stack-back-tracing in Linux for now.
114 struct cfs_stack_trace {
117 #ifndef WITH_WATCHDOG
118 #define WITH_WATCHDOG
122 * Macros to access common characteristics of "current" UNIX process.
124 #define current_pid() (current->pid)
125 #define current_comm() (current->comm)
127 /* check if task is running in compat mode.*/
128 int current_is_32bit(void);
130 #endif /* _LINUX_LIBCFS_H */