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
22extern void jfs_proc_init(void);
23extern 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
50extern int jfsloglevel;
51
52int 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
95int jfs_lmstats_proc_show(struct seq_file *m, void *v);
96int jfs_txstats_proc_show(struct seq_file *m, void *v);
97int jfs_mpstat_proc_show(struct seq_file *m, void *v);
98int 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