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[linux-2.6/verdex.git] / fs / jfs / jfs_debug.h
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1 /*
2 * Copyright (c) International Business Machines Corp., 2000-2002
3 * Portions Copyright (c) Christoph Hellwig, 2001-2002
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #ifndef _H_JFS_DEBUG
20 #define _H_JFS_DEBUG
23 * jfs_debug.h
25 * global debug message, data structure/macro definitions
26 * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
30 * Create /proc/fs/jfs if procfs is enabled andeither
31 * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
33 #if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
34 #define PROC_FS_JFS
35 #endif
38 * assert with traditional printf/panic
40 #ifdef CONFIG_KERNEL_ASSERTS
41 /* kgdb stuff */
42 #define assert(p) KERNEL_ASSERT(#p, p)
43 #else
44 #define assert(p) do { \
45 if (!(p)) { \
46 printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \
47 __FILE__, __LINE__, #p); \
48 BUG(); \
49 } \
50 } while (0)
51 #endif
54 * debug ON
55 * --------
57 #ifdef CONFIG_JFS_DEBUG
58 #define ASSERT(p) assert(p)
60 /* printk verbosity */
61 #define JFS_LOGLEVEL_ERR 1
62 #define JFS_LOGLEVEL_WARN 2
63 #define JFS_LOGLEVEL_DEBUG 3
64 #define JFS_LOGLEVEL_INFO 4
66 extern int jfsloglevel;
68 /* dump memory contents */
69 extern void dump_mem(char *label, void *data, int length);
71 /* information message: e.g., configuration, major event */
72 #define jfs_info(fmt, arg...) do { \
73 if (jfsloglevel >= JFS_LOGLEVEL_INFO) \
74 printk(KERN_INFO fmt "\n", ## arg); \
75 } while (0)
77 /* debug message: ad hoc */
78 #define jfs_debug(fmt, arg...) do { \
79 if (jfsloglevel >= JFS_LOGLEVEL_DEBUG) \
80 printk(KERN_DEBUG fmt "\n", ## arg); \
81 } while (0)
83 /* warn message: */
84 #define jfs_warn(fmt, arg...) do { \
85 if (jfsloglevel >= JFS_LOGLEVEL_WARN) \
86 printk(KERN_WARNING fmt "\n", ## arg); \
87 } while (0)
89 /* error event message: e.g., i/o error */
90 #define jfs_err(fmt, arg...) do { \
91 if (jfsloglevel >= JFS_LOGLEVEL_ERR) \
92 printk(KERN_ERR fmt "\n", ## arg); \
93 } while (0)
96 * debug OFF
97 * ---------
99 #else /* CONFIG_JFS_DEBUG */
100 #define dump_mem(label,data,length) do {} while (0)
101 #define ASSERT(p) do {} while (0)
102 #define jfs_info(fmt, arg...) do {} while (0)
103 #define jfs_debug(fmt, arg...) do {} while (0)
104 #define jfs_warn(fmt, arg...) do {} while (0)
105 #define jfs_err(fmt, arg...) do {} while (0)
106 #endif /* CONFIG_JFS_DEBUG */
109 * statistics
110 * ----------
112 #ifdef CONFIG_JFS_STATISTICS
113 #define INCREMENT(x) ((x)++)
114 #define DECREMENT(x) ((x)--)
115 #define HIGHWATERMARK(x,y) ((x) = max((x), (y)))
116 #else
117 #define INCREMENT(x)
118 #define DECREMENT(x)
119 #define HIGHWATERMARK(x,y)
120 #endif /* CONFIG_JFS_STATISTICS */
122 #endif /* _H_JFS_DEBUG */