cregit-Linux how code gets into the kernel

Release 4.11 fs/jfs/jfs_debug.h

Directory: fs/jfs
/*
 *   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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
Dave Kleikamp24390.33%466.67%
Alexey Dobriyan259.29%116.67%
Andrew Morton10.37%116.67%
Total269100.00%6100.00%
Directory: fs/jfs
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