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_format.h" 21 #include "xfs_log_format.h" 22 #include "xfs_trans_resv.h" 23 #include "xfs_mount.h" 24 25 /* 26 * XFS logging functions 27 */ 28 static void 29 __xfs_printk( 30 const char *level, 31 const struct xfs_mount *mp, 32 struct va_format *vaf) 33 { 34 if (mp && mp->m_fsname) { 35 printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf); 36 return; 37 } 38 printk("%sXFS: %pV\n", level, vaf); 39 } 40 41 #define define_xfs_printk_level(func, kern_level) \ 42 void func(const struct xfs_mount *mp, const char *fmt, ...) \ 43 { \ 44 struct va_format vaf; \ 45 va_list args; \ 46 \ 47 va_start(args, fmt); \ 48 \ 49 vaf.fmt = fmt; \ 50 vaf.va = &args; \ 51 \ 52 __xfs_printk(kern_level, mp, &vaf); \ 53 va_end(args); \ 54 } \ 55 56 define_xfs_printk_level(xfs_emerg, KERN_EMERG); 57 define_xfs_printk_level(xfs_alert, KERN_ALERT); 58 define_xfs_printk_level(xfs_crit, KERN_CRIT); 59 define_xfs_printk_level(xfs_err, KERN_ERR); 60 define_xfs_printk_level(xfs_warn, KERN_WARNING); 61 define_xfs_printk_level(xfs_notice, KERN_NOTICE); 62 define_xfs_printk_level(xfs_info, KERN_INFO); 63 #ifdef DEBUG 64 define_xfs_printk_level(xfs_debug, KERN_DEBUG); 65 #endif 66 67 void 68 xfs_alert_tag( 69 const struct xfs_mount *mp, 70 int panic_tag, 71 const char *fmt, ...) 72 { 73 struct va_format vaf; 74 va_list args; 75 int do_panic = 0; 76 77 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) { 78 xfs_alert(mp, "Transforming an alert into a BUG."); 79 do_panic = 1; 80 } 81 82 va_start(args, fmt); 83 84 vaf.fmt = fmt; 85 vaf.va = &args; 86 87 __xfs_printk(KERN_ALERT, mp, &vaf); 88 va_end(args); 89 90 BUG_ON(do_panic); 91 } 92 93 void 94 asswarn(char *expr, char *file, int line) 95 { 96 xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d", 97 expr, file, line); 98 WARN_ON(1); 99 } 100 101 void 102 assfail(char *expr, char *file, int line) 103 { 104 xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d", 105 expr, file, line); 106 BUG(); 107 } 108 109 void 110 xfs_hex_dump(void *p, int length) 111 { 112 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1); 113 } 114