1 /* 2 * Copyright (c) 2011 Red Hat, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 * 13 * You should have received a copy of the GNU General Public License 14 * along with this program; if not, write the Free Software Foundation, 15 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 16 */ 17 18 #include "xfs.h" 19 #include "xfs_fs.h" 20 #include "xfs_types.h" 21 #include "xfs_log.h" 22 #include "xfs_trans.h" 23 #include "xfs_sb.h" 24 #include "xfs_ag.h" 25 #include "xfs_mount.h" 26 27 /* 28 * XFS logging functions 29 */ 30 static void 31 __xfs_printk( 32 const char *level, 33 const struct xfs_mount *mp, 34 struct va_format *vaf) 35 { 36 if (mp && mp->m_fsname) { 37 printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf); 38 return; 39 } 40 printk("%sXFS: %pV\n", level, vaf); 41 } 42 43 #define define_xfs_printk_level(func, kern_level) \ 44 void func(const struct xfs_mount *mp, const char *fmt, ...) \ 45 { \ 46 struct va_format vaf; \ 47 va_list args; \ 48 \ 49 va_start(args, fmt); \ 50 \ 51 vaf.fmt = fmt; \ 52 vaf.va = &args; \ 53 \ 54 __xfs_printk(kern_level, mp, &vaf); \ 55 va_end(args); \ 56 } \ 57 58 define_xfs_printk_level(xfs_emerg, KERN_EMERG); 59 define_xfs_printk_level(xfs_alert, KERN_ALERT); 60 define_xfs_printk_level(xfs_crit, KERN_CRIT); 61 define_xfs_printk_level(xfs_err, KERN_ERR); 62 define_xfs_printk_level(xfs_warn, KERN_WARNING); 63 define_xfs_printk_level(xfs_notice, KERN_NOTICE); 64 define_xfs_printk_level(xfs_info, KERN_INFO); 65 #ifdef DEBUG 66 define_xfs_printk_level(xfs_debug, KERN_DEBUG); 67 #endif 68 69 void 70 xfs_alert_tag( 71 const struct xfs_mount *mp, 72 int panic_tag, 73 const char *fmt, ...) 74 { 75 struct va_format vaf; 76 va_list args; 77 int do_panic = 0; 78 79 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) { 80 xfs_alert(mp, "Transforming an alert into a BUG."); 81 do_panic = 1; 82 } 83 84 va_start(args, fmt); 85 86 vaf.fmt = fmt; 87 vaf.va = &args; 88 89 __xfs_printk(KERN_ALERT, mp, &vaf); 90 va_end(args); 91 92 BUG_ON(do_panic); 93 } 94 95 void 96 asswarn(char *expr, char *file, int line) 97 { 98 xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d", 99 expr, file, line); 100 WARN_ON(1); 101 } 102 103 void 104 assfail(char *expr, char *file, int line) 105 { 106 xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d", 107 expr, file, line); 108 BUG(); 109 } 110 111 void 112 xfs_hex_dump(void *p, int length) 113 { 114 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1); 115 } 116