fs/ubifs/debug.h

   1 /*
   2  * This file is part of UBIFS.
   3  *
   4  * Copyright (C) 2006-2008 Nokia Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published by
   8  * the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along with
  16  * this program; if not, write to the Free Software Foundation, Inc., 51
  17  * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  *
  19  * Authors: Artem Bityutskiy (Битюцкий Артём)
  20  *          Adrian Hunter
  21  */
  22
  23 #ifndef __UBIFS_DEBUG_H__
  24 #define __UBIFS_DEBUG_H__
  25
  26 /* Checking helper functions */
  27 typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
  28                                  struct ubifs_zbranch *zbr, void *priv);
  29 typedef int (*dbg_znode_callback)(struct ubifs_info *c,
  30                                   struct ubifs_znode *znode, void *priv);
  31
  32 #ifdef CONFIG_UBIFS_FS_DEBUG
  33
  34 /*
  35  * The UBIFS debugfs directory name pattern and maximum name length (3 for "ubi"
  36  * + 1 for "_" and plus 2x2 for 2 UBI numbers and 1 for the trailing zero byte.
  37  */
  38 #define UBIFS_DFS_DIR_NAME "ubi%d_%d"
  39 #define UBIFS_DFS_DIR_LEN  (3 + 1 + 2*2 + 1)
  40
  41 /**
  42  * ubifs_debug_info - per-FS debugging information.
  43  * @old_zroot: old index root - used by 'dbg_check_old_index()'
  44  * @old_zroot_level: old index root level - used by 'dbg_check_old_index()'
  45  * @old_zroot_sqnum: old index root sqnum - used by 'dbg_check_old_index()'
  46  *
  47  * @pc_happened: non-zero if an emulated power cut happened
  48  * @pc_delay: 0=>don't delay, 1=>delay a time, 2=>delay a number of calls
  49  * @pc_timeout: time in jiffies when delay of failure mode expires
  50  * @pc_cnt: current number of calls to failure mode I/O functions
  51  * @pc_cnt_max: number of calls by which to delay failure mode
  52  *
  53  * @chk_lpt_sz: used by LPT tree size checker
  54  * @chk_lpt_sz2: used by LPT tree size checker
  55  * @chk_lpt_wastage: used by LPT tree size checker
  56  * @chk_lpt_lebs: used by LPT tree size checker
  57  * @new_nhead_offs: used by LPT tree size checker
  58  * @new_ihead_lnum: used by debugging to check @c->ihead_lnum
  59  * @new_ihead_offs: used by debugging to check @c->ihead_offs
  60  *
  61  * @saved_lst: saved lprops statistics (used by 'dbg_save_space_info()')
  62  * @saved_bi: saved budgeting information
  63  * @saved_free: saved amount of free space
  64  * @saved_idx_gc_cnt: saved value of @c->idx_gc_cnt
  65  *
  66  * @chk_gen: if general extra checks are enabled
  67  * @chk_index: if index xtra checks are enabled
  68  * @chk_orph: if orphans extra checks are enabled
  69  * @chk_lprops: if lprops extra checks are enabled
  70  * @chk_fs: if UBIFS contents extra checks are enabled
  71  * @tst_rcvry: if UBIFS recovery testing mode enabled
  72  *
  73  * @dfs_dir_name: name of debugfs directory containing this file-system's files
  74  * @dfs_dir: direntry object of the file-system debugfs directory
  75  * @dfs_dump_lprops: "dump lprops" debugfs knob
  76  * @dfs_dump_budg: "dump budgeting information" debugfs knob
  77  * @dfs_dump_tnc: "dump TNC" debugfs knob
  78  * @dfs_chk_gen: debugfs knob to enable UBIFS general extra checks
  79  * @dfs_chk_index: debugfs knob to enable UBIFS index extra checks
  80  * @dfs_chk_orph: debugfs knob to enable UBIFS orphans extra checks
  81  * @dfs_chk_lprops: debugfs knob to enable UBIFS LEP properties extra checks
  82  * @dfs_chk_fs: debugfs knob to enable UBIFS contents extra checks
  83  * @dfs_tst_rcvry: debugfs knob to enable UBIFS recovery testing
  84  */
  85 struct ubifs_debug_info {
  86         struct ubifs_zbranch old_zroot;
  87         int old_zroot_level;
  88         unsigned long long old_zroot_sqnum;
  89
  90         int pc_happened;
  91         int pc_delay;
  92         unsigned long pc_timeout;
  93         unsigned int pc_cnt;
  94         unsigned int pc_cnt_max;
  95
  96         long long chk_lpt_sz;
  97         long long chk_lpt_sz2;
  98         long long chk_lpt_wastage;
  99         int chk_lpt_lebs;
 100         int new_nhead_offs;
 101         int new_ihead_lnum;
 102         int new_ihead_offs;
 103
 104         struct ubifs_lp_stats saved_lst;
 105         struct ubifs_budg_info saved_bi;
 106         long long saved_free;
 107         int saved_idx_gc_cnt;
 108
 109         unsigned int chk_gen:1;
 110         unsigned int chk_index:1;
 111         unsigned int chk_orph:1;
 112         unsigned int chk_lprops:1;
 113         unsigned int chk_fs:1;
 114         unsigned int tst_rcvry:1;
 115
 116         char dfs_dir_name[UBIFS_DFS_DIR_LEN + 1];
 117         struct dentry *dfs_dir;
 118         struct dentry *dfs_dump_lprops;
 119         struct dentry *dfs_dump_budg;
 120         struct dentry *dfs_dump_tnc;
 121         struct dentry *dfs_chk_gen;
 122         struct dentry *dfs_chk_index;
 123         struct dentry *dfs_chk_orph;
 124         struct dentry *dfs_chk_lprops;
 125         struct dentry *dfs_chk_fs;
 126         struct dentry *dfs_tst_rcvry;
 127 };
 128
 129 /**
 130  * ubifs_global_debug_info - global (not per-FS) UBIFS debugging information.
 131  *
 132  * @chk_gen: if general extra checks are enabled
 133  * @chk_index: if index xtra checks are enabled
 134  * @chk_orph: if orphans extra checks are enabled
 135  * @chk_lprops: if lprops extra checks are enabled
 136  * @chk_fs: if UBIFS contents extra checks are enabled
 137  * @tst_rcvry: if UBIFS recovery testing mode enabled
 138  */
 139 struct ubifs_global_debug_info {
 140         unsigned int chk_gen:1;
 141         unsigned int chk_index:1;
 142         unsigned int chk_orph:1;
 143         unsigned int chk_lprops:1;
 144         unsigned int chk_fs:1;
 145         unsigned int tst_rcvry:1;
 146 };
 147
 148 #define ubifs_assert(expr) do {                                                \
 149         if (unlikely(!(expr))) {                                               \
 150                 printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
 151                        __func__, __LINE__, current->pid);                      \
 152                 dbg_dump_stack();                                              \
 153         }                                                                      \
 154 } while (0)
 155
 156 #define ubifs_assert_cmt_locked(c) do {                                        \
 157         if (unlikely(down_write_trylock(&(c)->commit_sem))) {                  \
 158                 up_write(&(c)->commit_sem);                                    \
 159                 printk(KERN_CRIT "commit lock is not locked!\n");              \
 160                 ubifs_assert(0);                                               \
 161         }                                                                      \
 162 } while (0)
 163
 164 #define dbg_dump_stack() dump_stack()
 165
 166 #define dbg_err(fmt, ...) do {                                                 \
 167         spin_lock(&dbg_lock);                                                  \
 168         ubifs_err(fmt, ##__VA_ARGS__);                                         \
 169         spin_unlock(&dbg_lock);                                                \
 170 } while (0)
 171
 172 const char *dbg_key_str0(const struct ubifs_info *c,
 173                          const union ubifs_key *key);
 174 const char *dbg_key_str1(const struct ubifs_info *c,
 175                          const union ubifs_key *key);
 176
 177 /*
 178  * DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
 179  * macros.
 180  */
 181 #define DBGKEY(key) dbg_key_str0(c, (key))
 182 #define DBGKEY1(key) dbg_key_str1(c, (key))
 183
 184 extern spinlock_t dbg_lock;
 185
 186 #define ubifs_dbg_msg(type, fmt, ...) do {                        \
 187         spin_lock(&dbg_lock);                                     \
 188         pr_debug("UBIFS DBG " type ": " fmt "\n", ##__VA_ARGS__); \
 189         spin_unlock(&dbg_lock);                                   \
 190 } while (0)
 191
 192 /* Just a debugging messages not related to any specific UBIFS subsystem */
 193 #define dbg_msg(fmt, ...)   ubifs_dbg_msg("msg", fmt, ##__VA_ARGS__)
 194 /* General messages */
 195 #define dbg_gen(fmt, ...)   ubifs_dbg_msg("gen", fmt, ##__VA_ARGS__)
 196 /* Additional journal messages */
 197 #define dbg_jnl(fmt, ...)   ubifs_dbg_msg("jnl", fmt, ##__VA_ARGS__)
 198 /* Additional TNC messages */
 199 #define dbg_tnc(fmt, ...)   ubifs_dbg_msg("tnc", fmt, ##__VA_ARGS__)
 200 /* Additional lprops messages */
 201 #define dbg_lp(fmt, ...)    ubifs_dbg_msg("lp", fmt, ##__VA_ARGS__)
 202 /* Additional LEB find messages */
 203 #define dbg_find(fmt, ...)  ubifs_dbg_msg("find", fmt, ##__VA_ARGS__)
 204 /* Additional mount messages */
 205 #define dbg_mnt(fmt, ...)   ubifs_dbg_msg("mnt", fmt, ##__VA_ARGS__)
 206 /* Additional I/O messages */
 207 #define dbg_io(fmt, ...)    ubifs_dbg_msg("io", fmt, ##__VA_ARGS__)
 208 /* Additional commit messages */
 209 #define dbg_cmt(fmt, ...)   ubifs_dbg_msg("cmt", fmt, ##__VA_ARGS__)
 210 /* Additional budgeting messages */
 211 #define dbg_budg(fmt, ...)  ubifs_dbg_msg("budg", fmt, ##__VA_ARGS__)
 212 /* Additional log messages */
 213 #define dbg_log(fmt, ...)   ubifs_dbg_msg("log", fmt, ##__VA_ARGS__)
 214 /* Additional gc messages */
 215 #define dbg_gc(fmt, ...)    ubifs_dbg_msg("gc", fmt, ##__VA_ARGS__)
 216 /* Additional scan messages */
 217 #define dbg_scan(fmt, ...)  ubifs_dbg_msg("scan", fmt, ##__VA_ARGS__)
 218 /* Additional recovery messages */
 219 #define dbg_rcvry(fmt, ...) ubifs_dbg_msg("rcvry", fmt, ##__VA_ARGS__)
 220
 221 extern struct ubifs_global_debug_info ubifs_dbg;
 222
 223 static inline int dbg_is_chk_gen(const struct ubifs_info *c)
 224 {
 225         return !!(ubifs_dbg.chk_gen || c->dbg->chk_gen);
 226 }
 227 static inline int dbg_is_chk_index(const struct ubifs_info *c)
 228 {
 229         return !!(ubifs_dbg.chk_index || c->dbg->chk_index);
 230 }
 231 static inline int dbg_is_chk_orph(const struct ubifs_info *c)
 232 {
 233         return !!(ubifs_dbg.chk_orph || c->dbg->chk_orph);
 234 }
 235 static inline int dbg_is_chk_lprops(const struct ubifs_info *c)
 236 {
 237         return !!(ubifs_dbg.chk_lprops || c->dbg->chk_lprops);
 238 }
 239 static inline int dbg_is_chk_fs(const struct ubifs_info *c)
 240 {
 241         return !!(ubifs_dbg.chk_fs || c->dbg->chk_fs);
 242 }
 243 static inline int dbg_is_tst_rcvry(const struct ubifs_info *c)
 244 {
 245         return !!(ubifs_dbg.tst_rcvry || c->dbg->tst_rcvry);
 246 }
 247 static inline int dbg_is_power_cut(const struct ubifs_info *c)
 248 {
 249         return !!c->dbg->pc_happened;
 250 }
 251
 252 int ubifs_debugging_init(struct ubifs_info *c);
 253 void ubifs_debugging_exit(struct ubifs_info *c);
 254
 255 /* Dump functions */
 256 const char *dbg_ntype(int type);
 257 const char *dbg_cstate(int cmt_state);
 258 const char *dbg_jhead(int jhead);
 259 const char *dbg_get_key_dump(const struct ubifs_info *c,
 260                              const union ubifs_key *key);
 261 void dbg_dump_inode(struct ubifs_info *c, const struct inode *inode);
 262 void dbg_dump_node(const struct ubifs_info *c, const void *node);
 263 void dbg_dump_lpt_node(const struct ubifs_info *c, void *node, int lnum,
 264                        int offs);
 265 void dbg_dump_budget_req(const struct ubifs_budget_req *req);
 266 void dbg_dump_lstats(const struct ubifs_lp_stats *lst);
 267 void dbg_dump_budg(struct ubifs_info *c, const struct ubifs_budg_info *bi);
 268 void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp);
 269 void dbg_dump_lprops(struct ubifs_info *c);
 270 void dbg_dump_lpt_info(struct ubifs_info *c);
 271 void dbg_dump_leb(const struct ubifs_info *c, int lnum);
 272 void dbg_dump_znode(const struct ubifs_info *c,
 273                     const struct ubifs_znode *znode);
 274 void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat);
 275 void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
 276                     struct ubifs_nnode *parent, int iip);
 277 void dbg_dump_tnc(struct ubifs_info *c);
 278 void dbg_dump_index(struct ubifs_info *c);
 279 void dbg_dump_lpt_lebs(const struct ubifs_info *c);
 280
 281 int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb,
 282                    dbg_znode_callback znode_cb, void *priv);
 283
 284 /* Checking functions */
 285 void dbg_save_space_info(struct ubifs_info *c);
 286 int dbg_check_space_info(struct ubifs_info *c);
 287 int dbg_check_lprops(struct ubifs_info *c);
 288 int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot);
 289 int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot);
 290 int dbg_check_cats(struct ubifs_info *c);
 291 int dbg_check_ltab(struct ubifs_info *c);
 292 int dbg_chk_lpt_free_spc(struct ubifs_info *c);
 293 int dbg_chk_lpt_sz(struct ubifs_info *c, int action, int len);
 294 int dbg_check_synced_i_size(const struct ubifs_info *c, struct inode *inode);
 295 int dbg_check_dir(struct ubifs_info *c, const struct inode *dir);
 296 int dbg_check_tnc(struct ubifs_info *c, int extra);
 297 int dbg_check_idx_size(struct ubifs_info *c, long long idx_size);
 298 int dbg_check_filesystem(struct ubifs_info *c);
 299 void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat,
 300                     int add_pos);
 301 int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
 302                         int row, int col);
 303 int dbg_check_inode_size(struct ubifs_info *c, const struct inode *inode,
 304                          loff_t size);
 305 int dbg_check_data_nodes_order(struct ubifs_info *c, struct list_head *head);
 306 int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head);
 307
 308 int dbg_leb_write(struct ubifs_info *c, int lnum, const void *buf, int offs,
 309                   int len, int dtype);
 310 int dbg_leb_change(struct ubifs_info *c, int lnum, const void *buf, int len,
 311                    int dtype);
 312 int dbg_leb_unmap(struct ubifs_info *c, int lnum);
 313 int dbg_leb_map(struct ubifs_info *c, int lnum, int dtype);
 314
 315 /* Debugfs-related stuff */
 316 int dbg_debugfs_init(void);
 317 void dbg_debugfs_exit(void);
 318 int dbg_debugfs_init_fs(struct ubifs_info *c);
 319 void dbg_debugfs_exit_fs(struct ubifs_info *c);
 320
 321 #else /* !CONFIG_UBIFS_FS_DEBUG */
 322
 323 /* Use "if (0)" to make compiler check arguments even if debugging is off */
 324 #define ubifs_assert(expr)  do {                                               \
 325         if (0)                                                                 \
 326                 printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
 327                        __func__, __LINE__, current->pid);                      \
 328 } while (0)
 329
 330 #define dbg_err(fmt, ...)   do {                   \
 331         if (0)                                     \
 332                 ubifs_err(fmt, ##__VA_ARGS__);     \
 333 } while (0)
 334
 335 #define DBGKEY(key)  ((char *)(key))
 336 #define DBGKEY1(key) ((char *)(key))
 337
 338 #define ubifs_dbg_msg(fmt, ...) do {                        \
 339         if (0)                                              \
 340                 printk(KERN_DEBUG fmt "\n", ##__VA_ARGS__); \
 341 } while (0)
 342
 343 #define dbg_dump_stack()
 344 #define ubifs_assert_cmt_locked(c)
 345
 346 #define dbg_msg(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 347 #define dbg_gen(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 348 #define dbg_jnl(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 349 #define dbg_tnc(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 350 #define dbg_lp(fmt, ...)    ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 351 #define dbg_find(fmt, ...)  ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 352 #define dbg_mnt(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 353 #define dbg_io(fmt, ...)    ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 354 #define dbg_cmt(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 355 #define dbg_budg(fmt, ...)  ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 356 #define dbg_log(fmt, ...)   ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 357 #define dbg_gc(fmt, ...)    ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 358 #define dbg_scan(fmt, ...)  ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 359 #define dbg_rcvry(fmt, ...) ubifs_dbg_msg(fmt, ##__VA_ARGS__)
 360
 361 static inline int ubifs_debugging_init(struct ubifs_info *c)      { return 0; }
 362 static inline void ubifs_debugging_exit(struct ubifs_info *c)     { return; }
 363 static inline const char *dbg_ntype(int type)                     { return ""; }
 364 static inline const char *dbg_cstate(int cmt_state)               { return ""; }
 365 static inline const char *dbg_jhead(int jhead)                    { return ""; }
 366 static inline const char *
 367 dbg_get_key_dump(const struct ubifs_info *c,
 368                  const union ubifs_key *key)                      { return ""; }
 369 static inline void dbg_dump_inode(struct ubifs_info *c,
 370                                   const struct inode *inode)      { return; }
 371 static inline void dbg_dump_node(const struct ubifs_info *c,
 372                                  const void *node)                { return; }
 373 static inline void dbg_dump_lpt_node(const struct ubifs_info *c,
 374                                      void *node, int lnum,
 375                                      int offs)                    { return; }
 376 static inline void
 377 dbg_dump_budget_req(const struct ubifs_budget_req *req)           { return; }
 378 static inline void
 379 dbg_dump_lstats(const struct ubifs_lp_stats *lst)                 { return; }
 380 static inline void
 381 dbg_dump_budg(struct ubifs_info *c,
 382               const struct ubifs_budg_info *bi)                   { return; }
 383 static inline void dbg_dump_lprop(const struct ubifs_info *c,
 384                                   const struct ubifs_lprops *lp)  { return; }
 385 static inline void dbg_dump_lprops(struct ubifs_info *c)          { return; }
 386 static inline void dbg_dump_lpt_info(struct ubifs_info *c)        { return; }
 387 static inline void dbg_dump_leb(const struct ubifs_info *c,
 388                                 int lnum)                         { return; }
 389 static inline void
 390 dbg_dump_znode(const struct ubifs_info *c,
 391                const struct ubifs_znode *znode)                   { return; }
 392 static inline void dbg_dump_heap(struct ubifs_info *c,
 393                                  struct ubifs_lpt_heap *heap,
 394                                  int cat)                         { return; }
 395 static inline void dbg_dump_pnode(struct ubifs_info *c,
 396                                   struct ubifs_pnode *pnode,
 397                                   struct ubifs_nnode *parent,
 398                                   int iip)                        { return; }
 399 static inline void dbg_dump_tnc(struct ubifs_info *c)             { return; }
 400 static inline void dbg_dump_index(struct ubifs_info *c)           { return; }
 401 static inline void dbg_dump_lpt_lebs(const struct ubifs_info *c)  { return; }
 402
 403 static inline int dbg_walk_index(struct ubifs_info *c,
 404                                  dbg_leaf_callback leaf_cb,
 405                                  dbg_znode_callback znode_cb,
 406                                  void *priv)                      { return 0; }
 407 static inline void dbg_save_space_info(struct ubifs_info *c)      { return; }
 408 static inline int dbg_check_space_info(struct ubifs_info *c)      { return 0; }
 409 static inline int dbg_check_lprops(struct ubifs_info *c)          { return 0; }
 410 static inline int
 411 dbg_old_index_check_init(struct ubifs_info *c,
 412                          struct ubifs_zbranch *zroot)             { return 0; }
 413 static inline int
 414 dbg_check_old_index(struct ubifs_info *c,
 415                     struct ubifs_zbranch *zroot)                  { return 0; }
 416 static inline int dbg_check_cats(struct ubifs_info *c)            { return 0; }
 417 static inline int dbg_check_ltab(struct ubifs_info *c)            { return 0; }
 418 static inline int dbg_chk_lpt_free_spc(struct ubifs_info *c)      { return 0; }
 419 static inline int dbg_chk_lpt_sz(struct ubifs_info *c,
 420                                  int action, int len)             { return 0; }
 421 static inline int
 422 dbg_check_synced_i_size(const struct ubifs_info *c,
 423                         struct inode *inode)                      { return 0; }
 424 static inline int dbg_check_dir(struct ubifs_info *c,
 425                                 const struct inode *dir)          { return 0; }
 426 static inline int dbg_check_tnc(struct ubifs_info *c, int extra)  { return 0; }
 427 static inline int dbg_check_idx_size(struct ubifs_info *c,
 428                                      long long idx_size)          { return 0; }
 429 static inline int dbg_check_filesystem(struct ubifs_info *c)      { return 0; }
 430 static inline void dbg_check_heap(struct ubifs_info *c,
 431                                   struct ubifs_lpt_heap *heap,
 432                                   int cat, int add_pos)           { return; }
 433 static inline int dbg_check_lpt_nodes(struct ubifs_info *c,
 434         struct ubifs_cnode *cnode, int row, int col)              { return 0; }
 435 static inline int dbg_check_inode_size(struct ubifs_info *c,
 436                                        const struct inode *inode,
 437                                        loff_t size)               { return 0; }
 438 static inline int
 439 dbg_check_data_nodes_order(struct ubifs_info *c,
 440                            struct list_head *head)                { return 0; }
 441 static inline int
 442 dbg_check_nondata_nodes_order(struct ubifs_info *c,
 443                               struct list_head *head)             { return 0; }
 444
 445 static inline int dbg_leb_write(struct ubifs_info *c, int lnum,
 446                                 const void *buf, int offset,
 447                                 int len, int dtype)               { return 0; }
 448 static inline int dbg_leb_change(struct ubifs_info *c, int lnum,
 449                                  const void *buf, int len,
 450                                  int dtype)                       { return 0; }
 451 static inline int dbg_leb_unmap(struct ubifs_info *c, int lnum)   { return 0; }
 452 static inline int dbg_leb_map(struct ubifs_info *c, int lnum,
 453                               int dtype)                          { return 0; }
 454
 455 static inline int dbg_is_chk_gen(const struct ubifs_info *c)      { return 0; }
 456 static inline int dbg_is_chk_index(const struct ubifs_info *c)    { return 0; }
 457 static inline int dbg_is_chk_orph(const struct ubifs_info *c)     { return 0; }
 458 static inline int dbg_is_chk_lprops(const struct ubifs_info *c)   { return 0; }
 459 static inline int dbg_is_chk_fs(const struct ubifs_info *c)       { return 0; }
 460 static inline int dbg_is_tst_rcvry(const struct ubifs_info *c)    { return 0; }
 461 static inline int dbg_is_power_cut(const struct ubifs_info *c)    { return 0; }
 462
 463 static inline int dbg_debugfs_init(void)                          { return 0; }
 464 static inline void dbg_debugfs_exit(void)                         { return; }
 465 static inline int dbg_debugfs_init_fs(struct ubifs_info *c)       { return 0; }
 466 static inline int dbg_debugfs_exit_fs(struct ubifs_info *c)       { return 0; }
 467
 468 #endif /* !CONFIG_UBIFS_FS_DEBUG */
 469 #endif /* !__UBIFS_DEBUG_H__ */