1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Copyright (C) International Business Machines Corp., 2000-2002
4 * Portions Copyright (C) Christoph Hellwig, 2001-2002
5 */
6 #ifndef _H_JFS_DEBUG
7 #define _H_JFS_DEBUG
8
9 /*
10 * jfs_debug.h
11 *
12 * global debug message, data structure/macro definitions
13 * under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
14 */
15
16 /*
17 * Create /proc/fs/jfs if procfs is enabled andeither
18 * CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
19 */
20 #if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) || defined(CONFIG_JFS_STATISTICS))
21 #define PROC_FS_JFS
22 extern void jfs_proc_init(void);
23 extern void jfs_proc_clean(void);
24 #endif
25
26 /*
27 * assert with traditional printf/panic
28 */
29 #define assert(p) do { \
30 if (!(p)) { \
31 printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \
32 __FILE__, __LINE__, #p); \
33 BUG(); \
34 } \
35 } while (0)
36
37 /*
38 * debug ON
39 * --------
40 */
41 #ifdef CONFIG_JFS_DEBUG
42 #define ASSERT(p) assert(p)
43
44 /* printk verbosity */
45 #define JFS_LOGLEVEL_ERR 1
46 #define JFS_LOGLEVEL_WARN 2
47 #define JFS_LOGLEVEL_DEBUG 3
48 #define JFS_LOGLEVEL_INFO 4
49
50 extern int jfsloglevel;
51
52 int jfs_txanchor_proc_show(struct seq_file *m, void *v);
53
54 /* information message: e.g., configuration, major event */
55 #define jfs_info(fmt, arg...) do { \
56 if (jfsloglevel >= JFS_LOGLEVEL_INFO) \
57 printk(KERN_INFO fmt "\n", ## arg); \
58 } while (0)
59
60 /* debug message: ad hoc */
61 #define jfs_debug(fmt, arg...) do { \
62 if (jfsloglevel >= JFS_LOGLEVEL_DEBUG) \
63 printk(KERN_DEBUG fmt "\n", ## arg); \
64 } while (0)
65
66 /* warn message: */
67 #define jfs_warn(fmt, arg...) do { \
68 if (jfsloglevel >= JFS_LOGLEVEL_WARN) \
69 printk(KERN_WARNING fmt "\n", ## arg); \
70 } while (0)
71
72 /* error event message: e.g., i/o error */
73 #define jfs_err(fmt, arg...) do { \
74 if (jfsloglevel >= JFS_LOGLEVEL_ERR) \
75 printk(KERN_ERR fmt "\n", ## arg); \
76 } while (0)
77
78 /*
79 * debug OFF
80 * ---------
81 */
82 #else /* CONFIG_JFS_DEBUG */
83 #define ASSERT(p) do {} while (0)
84 #define jfs_info(fmt, arg...) do {} while (0)
85 #define jfs_debug(fmt, arg...) do {} while (0)
86 #define jfs_warn(fmt, arg...) do {} while (0)
87 #define jfs_err(fmt, arg...) do {} while (0)
88 #endif /* CONFIG_JFS_DEBUG */
89
90 /*
91 * statistics
92 * ----------
93 */
94 #ifdef CONFIG_JFS_STATISTICS
95 int jfs_lmstats_proc_show(struct seq_file *m, void *v);
96 int jfs_txstats_proc_show(struct seq_file *m, void *v);
97 int jfs_mpstat_proc_show(struct seq_file *m, void *v);
98 int jfs_xtstat_proc_show(struct seq_file *m, void *v);
99
100 #define INCREMENT(x) ((x)++)
101 #define DECREMENT(x) ((x)--)
102 #define HIGHWATERMARK(x,y) ((x) = max((x), (y)))
103 #else
104 #define INCREMENT(x)
105 #define DECREMENT(x)
106 #define HIGHWATERMARK(x,y)
107 #endif /* CONFIG_JFS_STATISTICS */
108
109 #endif /* _H_JFS_DEBUG */
110
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