fs/xfs/support/debug.c

   1 /*
   2  * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #include <xfs.h>
  19 #include "debug.h"
  20
  21 /* xfs_mount.h drags a lot of crap in, sorry.. */
  22 #include "xfs_sb.h"
  23 #include "xfs_inum.h"
  24 #include "xfs_ag.h"
  25 #include "xfs_mount.h"
  26 #include "xfs_error.h"
  27
  28 void
  29 cmn_err(
  30         const char      *lvl,
  31         const char      *fmt,
  32         ...)
  33 {
  34         struct va_format vaf;
  35         va_list         args;
  36
  37         va_start(args, fmt);
  38         vaf.fmt = fmt;
  39         vaf.va = &args;
  40
  41         printk("%s%pV", lvl, &vaf);
  42         va_end(args);
  43
  44         BUG_ON(strncmp(lvl, KERN_EMERG, strlen(KERN_EMERG)) == 0);
  45 }
  46
  47 void
  48 xfs_fs_cmn_err(
  49         const char              *lvl,
  50         struct xfs_mount        *mp,
  51         const char              *fmt,
  52         ...)
  53 {
  54         struct va_format        vaf;
  55         va_list                 args;
  56
  57         va_start(args, fmt);
  58         vaf.fmt = fmt;
  59         vaf.va = &args;
  60
  61         printk("%sFilesystem %s: %pV", lvl, mp->m_fsname, &vaf);
  62         va_end(args);
  63
  64         BUG_ON(strncmp(lvl, KERN_EMERG, strlen(KERN_EMERG)) == 0);
  65 }
  66
  67 /* All callers to xfs_cmn_err use CE_ALERT, so don't bother testing lvl */
  68 void
  69 xfs_cmn_err(
  70         int                     panic_tag,
  71         const char              *lvl,
  72         struct xfs_mount        *mp,
  73         const char              *fmt,
  74         ...)
  75 {
  76         struct va_format        vaf;
  77         va_list                 args;
  78         int                     do_panic = 0;
  79
  80         if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
  81                 printk(KERN_ALERT "XFS: Transforming an alert into a BUG.");
  82                 do_panic = 1;
  83         }
  84
  85         va_start(args, fmt);
  86         vaf.fmt = fmt;
  87         vaf.va = &args;
  88
  89         printk(KERN_ALERT "Filesystem %s: %pV", mp->m_fsname, &vaf);
  90         va_end(args);
  91
  92         BUG_ON(do_panic);
  93 }
  94
  95 void
  96 assfail(char *expr, char *file, int line)
  97 {
  98         printk(KERN_CRIT "Assertion failed: %s, file: %s, line: %d\n", expr,
  99                file, line);
 100         BUG();
 101 }
 102
 103 void
 104 xfs_hex_dump(void *p, int length)
 105 {
 106         print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_ADDRESS, 16, 1, p, length, 1);
 107 }