[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
extern void jfs_proc_init(void);
extern void jfs_proc_clean(void);
#endif

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

/*
 *	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;

extern const struct file_operations jfs_txanchor_proc_fops;

/* 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 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
extern const struct file_operations jfs_lmstats_proc_fops;
extern const struct file_operations jfs_txstats_proc_fops;
extern const struct file_operations jfs_mpstat_proc_fops;
extern const struct file_operations jfs_xtstat_proc_fops;

#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	1	/*
1868f4aa DK	2	* Copyright (C) International Business Machines Corp., 2000-2002
1868f4aa DK	3	* Portions Copyright (C) Christoph Hellwig, 2001-2002
1da177e4 LT	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))
1868f4aa DK	34	#define PROC_FS_JFS
	35	extern void jfs_proc_init(void);
	36	extern void jfs_proc_clean(void);
1da177e4 LT	37	#endif
	38
	39	/*
	40	* assert with traditional printf/panic
	41	*/
1da177e4 LT	42	#define assert(p) do { \
	43	if (!(p)) { \
	44	printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \
	45	__FILE__, __LINE__, #p); \
	46	BUG(); \
	47	} \
	48	} while (0)
1da177e4 LT	49
	50	/*
	51	* debug ON
	52	* --------
	53	*/
	54	#ifdef CONFIG_JFS_DEBUG
	55	#define ASSERT(p) assert(p)
	56
	57	/* printk verbosity */
	58	#define JFS_LOGLEVEL_ERR 1
	59	#define JFS_LOGLEVEL_WARN 2
	60	#define JFS_LOGLEVEL_DEBUG 3
	61	#define JFS_LOGLEVEL_INFO 4
	62
	63	extern int jfsloglevel;
	64
b2e03ca7	65	extern const struct file_operations jfs_txanchor_proc_fops;
1da177e4 LT	66
	67	/* information message: e.g., configuration, major event */
	68	#define jfs_info(fmt, arg...) do { \
	69	if (jfsloglevel >= JFS_LOGLEVEL_INFO) \
	70	printk(KERN_INFO fmt "\n", ## arg); \
	71	} while (0)
	72
	73	/* debug message: ad hoc */
	74	#define jfs_debug(fmt, arg...) do { \
	75	if (jfsloglevel >= JFS_LOGLEVEL_DEBUG) \
	76	printk(KERN_DEBUG fmt "\n", ## arg); \
	77	} while (0)
	78
	79	/* warn message: */
	80	#define jfs_warn(fmt, arg...) do { \
	81	if (jfsloglevel >= JFS_LOGLEVEL_WARN) \
	82	printk(KERN_WARNING fmt "\n", ## arg); \
	83	} while (0)
	84
	85	/* error event message: e.g., i/o error */
	86	#define jfs_err(fmt, arg...) do { \
	87	if (jfsloglevel >= JFS_LOGLEVEL_ERR) \
	88	printk(KERN_ERR fmt "\n", ## arg); \
	89	} while (0)
	90
	91	/*
	92	* debug OFF
	93	* ---------
	94	*/
	95	#else /* CONFIG_JFS_DEBUG */
1da177e4 LT	96	#define ASSERT(p) do {} while (0)
	97	#define jfs_info(fmt, arg...) do {} while (0)
	98	#define jfs_debug(fmt, arg...) do {} while (0)
	99	#define jfs_warn(fmt, arg...) do {} while (0)
	100	#define jfs_err(fmt, arg...) do {} while (0)
	101	#endif /* CONFIG_JFS_DEBUG */
	102
	103	/*
	104	* statistics
	105	* ----------
	106	*/
	107	#ifdef CONFIG_JFS_STATISTICS
b2e03ca7 AD	108	extern const struct file_operations jfs_lmstats_proc_fops;
	109	extern const struct file_operations jfs_txstats_proc_fops;
	110	extern const struct file_operations jfs_mpstat_proc_fops;
	111	extern const struct file_operations jfs_xtstat_proc_fops;
1868f4aa	112
1da177e4 LT	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 */