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/*

 *   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 */