aboutsummaryrefslogtreecommitdiff
path: root/fs/jfs/jfs_debug.h
blob: a38079ae1e005f0d2c796b91e82f24a01e05fc0b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
/*
 *   Copyright (c) International Business Machines Corp., 2000-2002
 *   Portions Copyright (c) Christoph Hellwig, 2001-2002
 *
 *   This program is free software;  you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program;  if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
#ifndef _H_JFS_DEBUG
#define _H_JFS_DEBUG

/*
 *	jfs_debug.h
 *
 * global debug message, data structure/macro definitions
 * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
 */

/*
 * Create /proc/fs/jfs if procfs is enabled andeither
 * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
 */
#if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
	#define PROC_FS_JFS
#endif

/*
 *	assert with traditional printf/panic
 */
#ifdef CONFIG_KERNEL_ASSERTS
/* kgdb stuff */
#define assert(p) KERNEL_ASSERT(#p, p)
#else
#define assert(p) do {	\
	if (!(p)) {	\
		printk(KERN_CRIT "BUG at %s:%d assert(%s)\n",	\
		       __FILE__, __LINE__, #p);			\
		BUG();	\
	}		\
} while (0)
#endif

/*
 *	debug ON
 *	--------
 */
#ifdef CONFIG_JFS_DEBUG
#define ASSERT(p) assert(p)

/* printk verbosity */
#define JFS_LOGLEVEL_ERR 1
#define JFS_LOGLEVEL_WARN 2
#define JFS_LOGLEVEL_DEBUG 3
#define JFS_LOGLEVEL_INFO 4

extern int jfsloglevel;

/* dump memory contents */
extern void dump_mem(char *label, void *data, int length);

/* information message: e.g., configuration, major event */
#define jfs_info(fmt, arg...) do {			\
	if (jfsloglevel >= JFS_LOGLEVEL_INFO)		\
		printk(KERN_INFO fmt "\n", ## arg);	\
} while (0)

/* debug message: ad hoc */
#define jfs_debug(fmt, arg...) do {			\
	if (jfsloglevel >= JFS_LOGLEVEL_DEBUG)		\
		printk(KERN_DEBUG fmt "\n", ## arg);	\
} while (0)

/* warn message: */
#define jfs_warn(fmt, arg...) do {			\
	if (jfsloglevel >= JFS_LOGLEVEL_WARN)		\
		printk(KERN_WARNING fmt "\n", ## arg);	\
} while (0)

/* error event message: e.g., i/o error */
#define jfs_err(fmt, arg...) do {			\
	if (jfsloglevel >= JFS_LOGLEVEL_ERR)		\
		printk(KERN_ERR fmt "\n", ## arg);	\
} while (0)

/*
 *	debug OFF
 *	---------
 */
#else				/* CONFIG_JFS_DEBUG */
#define dump_mem(label,data,length) do {} while (0)
#define ASSERT(p) do {} while (0)
#define jfs_info(fmt, arg...) do {} while (0)
#define jfs_debug(fmt, arg...) do {} while (0)
#define jfs_warn(fmt, arg...) do {} while (0)
#define jfs_err(fmt, arg...) do {} while (0)
#endif				/* CONFIG_JFS_DEBUG */

/*
 *	statistics
 *	----------
 */
#ifdef	CONFIG_JFS_STATISTICS
#define	INCREMENT(x)		((x)++)
#define	DECREMENT(x)		((x)--)
#define	HIGHWATERMARK(x,y)	((x) = max((x), (y)))
#else
#define	INCREMENT(x)
#define	DECREMENT(x)
#define	HIGHWATERMARK(x,y)
#endif				/* CONFIG_JFS_STATISTICS */

#endif				/* _H_JFS_DEBUG */