~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/fs/ntfs/debug.c

Version: ~ [ linux-5.1-rc5 ] ~ [ linux-5.0.7 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.34 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.111 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.168 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.178 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.138 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.65 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  * debug.c - NTFS kernel debug support. Part of the Linux-NTFS project.
  3  *
  4  * Copyright (c) 2001-2004 Anton Altaparmakov
  5  *
  6  * This program/include file is free software; you can redistribute it and/or
  7  * modify it under the terms of the GNU General Public License as published
  8  * by the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program/include file is distributed in the hope that it will be
 12  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 13  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  *
 16  * You should have received a copy of the GNU General Public License
 17  * along with this program (in the main directory of the Linux-NTFS
 18  * distribution in the file COPYING); if not, write to the Free Software
 19  * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 20  */
 21 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 22 #include "debug.h"
 23 
 24 /**
 25  * __ntfs_warning - output a warning to the syslog
 26  * @function:   name of function outputting the warning
 27  * @sb:         super block of mounted ntfs filesystem
 28  * @fmt:        warning string containing format specifications
 29  * @...:        a variable number of arguments specified in @fmt
 30  *
 31  * Outputs a warning to the syslog for the mounted ntfs filesystem described
 32  * by @sb.
 33  *
 34  * @fmt and the corresponding @... is printf style format string containing
 35  * the warning string and the corresponding format arguments, respectively.
 36  *
 37  * @function is the name of the function from which __ntfs_warning is being
 38  * called.
 39  *
 40  * Note, you should be using debug.h::ntfs_warning(@sb, @fmt, @...) instead
 41  * as this provides the @function parameter automatically.
 42  */
 43 void __ntfs_warning(const char *function, const struct super_block *sb,
 44                 const char *fmt, ...)
 45 {
 46         struct va_format vaf;
 47         va_list args;
 48         int flen = 0;
 49 
 50 #ifndef DEBUG
 51         if (!printk_ratelimit())
 52                 return;
 53 #endif
 54         if (function)
 55                 flen = strlen(function);
 56         va_start(args, fmt);
 57         vaf.fmt = fmt;
 58         vaf.va = &args;
 59         if (sb)
 60                 pr_warn("(device %s): %s(): %pV\n",
 61                         sb->s_id, flen ? function : "", &vaf);
 62         else
 63                 pr_warn("%s(): %pV\n", flen ? function : "", &vaf);
 64         va_end(args);
 65 }
 66 
 67 /**
 68  * __ntfs_error - output an error to the syslog
 69  * @function:   name of function outputting the error
 70  * @sb:         super block of mounted ntfs filesystem
 71  * @fmt:        error string containing format specifications
 72  * @...:        a variable number of arguments specified in @fmt
 73  *
 74  * Outputs an error to the syslog for the mounted ntfs filesystem described
 75  * by @sb.
 76  *
 77  * @fmt and the corresponding @... is printf style format string containing
 78  * the error string and the corresponding format arguments, respectively.
 79  *
 80  * @function is the name of the function from which __ntfs_error is being
 81  * called.
 82  *
 83  * Note, you should be using debug.h::ntfs_error(@sb, @fmt, @...) instead
 84  * as this provides the @function parameter automatically.
 85  */
 86 void __ntfs_error(const char *function, const struct super_block *sb,
 87                 const char *fmt, ...)
 88 {
 89         struct va_format vaf;
 90         va_list args;
 91         int flen = 0;
 92 
 93 #ifndef DEBUG
 94         if (!printk_ratelimit())
 95                 return;
 96 #endif
 97         if (function)
 98                 flen = strlen(function);
 99         va_start(args, fmt);
100         vaf.fmt = fmt;
101         vaf.va = &args;
102         if (sb)
103                 pr_err("(device %s): %s(): %pV\n",
104                        sb->s_id, flen ? function : "", &vaf);
105         else
106                 pr_err("%s(): %pV\n", flen ? function : "", &vaf);
107         va_end(args);
108 }
109 
110 #ifdef DEBUG
111 
112 /* If 1, output debug messages, and if 0, don't. */
113 int debug_msgs = 0;
114 
115 void __ntfs_debug(const char *file, int line, const char *function,
116                 const char *fmt, ...)
117 {
118         struct va_format vaf;
119         va_list args;
120         int flen = 0;
121 
122         if (!debug_msgs)
123                 return;
124         if (function)
125                 flen = strlen(function);
126         va_start(args, fmt);
127         vaf.fmt = fmt;
128         vaf.va = &args;
129         pr_debug("(%s, %d): %s(): %pV", file, line, flen ? function : "", &vaf);
130         va_end(args);
131 }
132 
133 /* Dump a runlist. Caller has to provide synchronisation for @rl. */
134 void ntfs_debug_dump_runlist(const runlist_element *rl)
135 {
136         int i;
137         const char *lcn_str[5] = { "LCN_HOLE         ", "LCN_RL_NOT_MAPPED",
138                                    "LCN_ENOENT       ", "LCN_unknown      " };
139 
140         if (!debug_msgs)
141                 return;
142         pr_debug("Dumping runlist (values in hex):\n");
143         if (!rl) {
144                 pr_debug("Run list not present.\n");
145                 return;
146         }
147         pr_debug("VCN              LCN               Run length\n");
148         for (i = 0; ; i++) {
149                 LCN lcn = (rl + i)->lcn;
150 
151                 if (lcn < (LCN)0) {
152                         int index = -lcn - 1;
153 
154                         if (index > -LCN_ENOENT - 1)
155                                 index = 3;
156                         pr_debug("%-16Lx %s %-16Lx%s\n",
157                                         (long long)(rl + i)->vcn, lcn_str[index],
158                                         (long long)(rl + i)->length,
159                                         (rl + i)->length ? "" :
160                                                 " (runlist end)");
161                 } else
162                         pr_debug("%-16Lx %-16Lx  %-16Lx%s\n",
163                                         (long long)(rl + i)->vcn,
164                                         (long long)(rl + i)->lcn,
165                                         (long long)(rl + i)->length,
166                                         (rl + i)->length ? "" :
167                                                 " (runlist end)");
168                 if (!(rl + i)->length)
169                         break;
170         }
171 }
172 
173 #endif
174 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp