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 35extern void jfs_proc_init(void); 36extern 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 63extern int jfsloglevel; 64 65extern 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 108extern const struct file_operations jfs_lmstats_proc_fops; 109extern const struct file_operations jfs_txstats_proc_fops; 110extern const struct file_operations jfs_mpstat_proc_fops; 111extern 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