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 #endif 36 37 /* 38 * assert with traditional printf/panic 39 */ 40 #ifdef CONFIG_KERNEL_ASSERTS 41 /* kgdb stuff */ 42 #define assert(p) KERNEL_ASSERT(#p, p) 43 #else 44 #define assert(p) do { \ 45 if (!(p)) { \ 46 printk(KERN_CRIT "BUG at %s:%d assert(%s)\n", \ 47 __FILE__, __LINE__, #p); \ 48 BUG(); \ 49 } \ 50 } while (0) 51 #endif 52 53 /* 54 * debug ON 55 * -------- 56 */ 57 #ifdef CONFIG_JFS_DEBUG 58 #define ASSERT(p) assert(p) 59 60 /* printk verbosity */ 61 #define JFS_LOGLEVEL_ERR 1 62 #define JFS_LOGLEVEL_WARN 2 63 #define JFS_LOGLEVEL_DEBUG 3 64 #define JFS_LOGLEVEL_INFO 4 65 66 extern int jfsloglevel; 67 68 /* dump memory contents */ 69 extern void dump_mem(char *label, void *data, int length); 70 71 /* information message: e.g., configuration, major event */ 72 #define jfs_info(fmt, arg...) do { \ 73 if (jfsloglevel >= JFS_LOGLEVEL_INFO) \ 74 printk(KERN_INFO fmt "\n", ## arg); \ 75 } while (0) 76 77 /* debug message: ad hoc */ 78 #define jfs_debug(fmt, arg...) do { \ 79 if (jfsloglevel >= JFS_LOGLEVEL_DEBUG) \ 80 printk(KERN_DEBUG fmt "\n", ## arg); \ 81 } while (0) 82 83 /* warn message: */ 84 #define jfs_warn(fmt, arg...) do { \ 85 if (jfsloglevel >= JFS_LOGLEVEL_WARN) \ 86 printk(KERN_WARNING fmt "\n", ## arg); \ 87 } while (0) 88 89 /* error event message: e.g., i/o error */ 90 #define jfs_err(fmt, arg...) do { \ 91 if (jfsloglevel >= JFS_LOGLEVEL_ERR) \ 92 printk(KERN_ERR fmt "\n", ## arg); \ 93 } while (0) 94 95 /* 96 * debug OFF 97 * --------- 98 */ 99 #else /* CONFIG_JFS_DEBUG */ 100 #define dump_mem(label,data,length) do {} while (0) 101 #define ASSERT(p) do {} while (0) 102 #define jfs_info(fmt, arg...) do {} while (0) 103 #define jfs_debug(fmt, arg...) do {} while (0) 104 #define jfs_warn(fmt, arg...) do {} while (0) 105 #define jfs_err(fmt, arg...) do {} while (0) 106 #endif /* CONFIG_JFS_DEBUG */ 107 108 /* 109 * statistics 110 * ---------- 111 */ 112 #ifdef CONFIG_JFS_STATISTICS 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