1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2011 Red Hat, Inc. All Rights Reserved. 4 */ 5 6 #include "xfs.h" 7 #include "xfs_fs.h" 8 #include "xfs_error.h" 9 #include "xfs_shared.h" 10 #include "xfs_format.h" 11 #include "xfs_trans_resv.h" 12 #include "xfs_mount.h" 13 14 /* 15 * XFS logging functions 16 */ 17 static void 18 __xfs_printk( 19 const char *level, 20 const struct xfs_mount *mp, 21 struct va_format *vaf) 22 { 23 if (mp && mp->m_fsname) { 24 printk("%sXFS (%s): %pV\n", level, mp->m_fsname, vaf); 25 return; 26 } 27 printk("%sXFS: %pV\n", level, vaf); 28 } 29 30 #define define_xfs_printk_level(func, kern_level) \ 31 void func(const struct xfs_mount *mp, const char *fmt, ...) \ 32 { \ 33 struct va_format vaf; \ 34 va_list args; \ 35 int level; \ 36 \ 37 va_start(args, fmt); \ 38 \ 39 vaf.fmt = fmt; \ 40 vaf.va = &args; \ 41 \ 42 __xfs_printk(kern_level, mp, &vaf); \ 43 va_end(args); \ 44 \ 45 if (!kstrtoint(kern_level, 0, &level) && \ 46 level <= LOGLEVEL_ERR && \ 47 xfs_error_level >= XFS_ERRLEVEL_HIGH) \ 48 xfs_stack_trace(); \ 49 } \ 50 51 define_xfs_printk_level(xfs_emerg, KERN_EMERG); 52 define_xfs_printk_level(xfs_alert, KERN_ALERT); 53 define_xfs_printk_level(xfs_crit, KERN_CRIT); 54 define_xfs_printk_level(xfs_err, KERN_ERR); 55 define_xfs_printk_level(xfs_warn, KERN_WARNING); 56 define_xfs_printk_level(xfs_notice, KERN_NOTICE); 57 define_xfs_printk_level(xfs_info, KERN_INFO); 58 #ifdef DEBUG 59 define_xfs_printk_level(xfs_debug, KERN_DEBUG); 60 #endif 61 62 void 63 xfs_alert_tag( 64 const struct xfs_mount *mp, 65 int panic_tag, 66 const char *fmt, ...) 67 { 68 struct va_format vaf; 69 va_list args; 70 int do_panic = 0; 71 72 if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) { 73 xfs_alert(mp, "Transforming an alert into a BUG."); 74 do_panic = 1; 75 } 76 77 va_start(args, fmt); 78 79 vaf.fmt = fmt; 80 vaf.va = &args; 81 82 __xfs_printk(KERN_ALERT, mp, &vaf); 83 va_end(args); 84 85 BUG_ON(do_panic); 86 } 87 88 void 89 asswarn(char *expr, char *file, int line) 90 { 91 xfs_warn(NULL, "Assertion failed: %s, file: %s, line: %d", 92 expr, file, line); 93 WARN_ON(1); 94 } 95 96 void 97 assfail(char *expr, char *file, int line) 98 { 99 xfs_emerg(NULL, "Assertion failed: %s, file: %s, line: %d", 100 expr, file, line); 101 if (xfs_globals.bug_on_assert) 102 BUG(); 103 else 104 WARN_ON(1); 105 } 106 107 void 108 xfs_hex_dump(void *p, int length) 109 { 110 print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 16, 1, p, length, 1); 111 } 112