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 extern void jfs_proc_init(void); 36 extern void jfs_proc_clean(void); 37 #endif 38 39 /* 40 * assert with traditional printf/panic 41 */ 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) 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 65 extern const struct file_operations jfs_txanchor_proc_fops; 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 */ 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 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; 112 113 #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 */ 123