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Diffstat (limited to 'kernel/fs/jfs/jfs_debug.h')
| -rw-r--r-- | kernel/fs/jfs/jfs_debug.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/kernel/fs/jfs/jfs_debug.h b/kernel/fs/jfs/jfs_debug.h new file mode 100644 index 000000000..eafd1300a --- /dev/null +++ b/kernel/fs/jfs/jfs_debug.h @@ -0,0 +1,122 @@ +/* + * 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 */ |