[linux-2.6-block.git] / fs / jfs / jfs_debug.h

/*
 *   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 */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Copyright (c) International Business Machines Corp., 2000-2002
	3	* Portions Copyright (c) Christoph Hellwig, 2001-2002
	4	*
	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.
	9	*
	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.
	14	*
	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
	18	*/
	19	#ifndef _H_JFS_DEBUG
	20	#define _H_JFS_DEBUG
	21
	22	/*
	23	* jfs_debug.h
	24	*
	25	* global debug message, data structure/macro definitions
	26	* under control of CONFIG_JFS_DEBUG, CONFIG_JFS_STATISTICS;
	27	*/
	28
	29	/*
	30	* Create /proc/fs/jfs if procfs is enabled andeither
	31	* CONFIG_JFS_DEBUG or CONFIG_JFS_STATISTICS is defined
	32	*/
	33	#if defined(CONFIG_PROC_FS) && (defined(CONFIG_JFS_DEBUG) \|\| defined(CONFIG_JFS_STATISTICS))
	34	#define PROC_FS_JFS
	35	#endif
	36
	37	/*
	38	* assert with traditional printf/panic
	39	*/
	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
	52
	53	/*
	54	* debug ON
	55	* --------
	56	*/
	57	#ifdef CONFIG_JFS_DEBUG
	58	#define ASSERT(p) assert(p)
	59
	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
65
66	extern int jfsloglevel;
67
68	/* dump memory contents */
69	extern void dump_mem(char label, void data, int length);
70
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)
76
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)
82
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)
88
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)
94
95	/*
96	* debug OFF
97	* ---------
98	*/
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 */
107
108	/*
109	* statistics
110	* ----------
111	*/
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 */
121
122	#endif /* _H_JFS_DEBUG */