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   1 /* -*- linux-c -*- */
   2
   3 /* fs/reiserfs/procfs.c */
   4
   5 /*
   6  * Copyright 2000 by Hans Reiser, licensing governed by reiserfs/README
   7  */
   8
   9 /* proc info support a la one created by Sizif@Botik.RU for PGC */
  10
  11 /* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
  12
  13 #include <linux/module.h>
  14 #include <linux/time.h>
  15 #include <linux/seq_file.h>
  16 #include <asm/uaccess.h>
  17 #include <linux/reiserfs_fs.h>
  18 #include <linux/reiserfs_fs_sb.h>
  19 #include <linux/smp_lock.h>
  20 #include <linux/init.h>
  21 #include <linux/proc_fs.h>
  22
  23 #if defined( REISERFS_PROC_INFO )
  24
  25 /*
  26  * LOCKING:
  27  *
  28  * We rely on new Alexander Viro's super-block locking.
  29  *
  30  */
  31
  32 static int show_version(struct seq_file *m, struct super_block *sb)
  33 {
  34         char *format;
  35
  36         if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
  37                 format = "3.6";
  38         } else if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5)) {
  39                 format = "3.5";
  40         } else {
  41                 format = "unknown";
  42         }
  43
  44         seq_printf(m, "%s format\twith checks %s\n", format,
  45 #if defined( CONFIG_REISERFS_CHECK )
  46                    "on"
  47 #else
  48                    "off"
  49 #endif
  50             );
  51         return 0;
  52 }
  53
  54 int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
  55                                     int count, int *eof, void *data)
  56 {
  57         *start = buffer;
  58         *eof = 1;
  59         return 0;
  60 }
  61
  62 #define SF( x ) ( r -> x )
  63 #define SFP( x ) SF( s_proc_info_data.x )
  64 #define SFPL( x ) SFP( x[ level ] )
  65 #define SFPF( x ) SFP( scan_bitmap.x )
  66 #define SFPJ( x ) SFP( journal.x )
  67
  68 #define D2C( x ) le16_to_cpu( x )
  69 #define D4C( x ) le32_to_cpu( x )
  70 #define DF( x ) D2C( rs -> s_v1.x )
  71 #define DFL( x ) D4C( rs -> s_v1.x )
  72
  73 #define objectid_map( s, rs ) (old_format_only (s) ?                            \
  74                          (__le32 *)((struct reiserfs_super_block_v1 *)rs + 1) : \
  75                          (__le32 *)(rs + 1))
  76 #define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
  77
  78 #define DJF( x ) le32_to_cpu( rs -> x )
  79 #define DJV( x ) le32_to_cpu( s_v1 -> x )
  80 #define DJP( x ) le32_to_cpu( jp -> x )
  81 #define JF( x ) ( r -> s_journal -> x )
  82
  83 static int show_super(struct seq_file *m, struct super_block *sb)
  84 {
  85         struct reiserfs_sb_info *r = REISERFS_SB(sb);
  86
  87         seq_printf(m, "state: \t%s\n"
  88                    "mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
  89                    "gen. counter: \t%i\n"
  90                    "s_disk_reads: \t%i\n"
  91                    "s_disk_writes: \t%i\n"
  92                    "s_fix_nodes: \t%i\n"
  93                    "s_do_balance: \t%i\n"
  94                    "s_unneeded_left_neighbor: \t%i\n"
  95                    "s_good_search_by_key_reada: \t%i\n"
  96                    "s_bmaps: \t%i\n"
  97                    "s_bmaps_without_search: \t%i\n"
  98                    "s_direct2indirect: \t%i\n"
  99                    "s_indirect2direct: \t%i\n"
 100                    "\n"
 101                    "max_hash_collisions: \t%i\n"
 102                    "breads: \t%lu\n"
 103                    "bread_misses: \t%lu\n"
 104                    "search_by_key: \t%lu\n"
 105                    "search_by_key_fs_changed: \t%lu\n"
 106                    "search_by_key_restarted: \t%lu\n"
 107                    "insert_item_restarted: \t%lu\n"
 108                    "paste_into_item_restarted: \t%lu\n"
 109                    "cut_from_item_restarted: \t%lu\n"
 110                    "delete_solid_item_restarted: \t%lu\n"
 111                    "delete_item_restarted: \t%lu\n"
 112                    "leaked_oid: \t%lu\n"
 113                    "leaves_removable: \t%lu\n",
 114                    SF(s_mount_state) == REISERFS_VALID_FS ?
 115                    "REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
 116                    reiserfs_r5_hash(sb) ? "FORCE_R5 " : "",
 117                    reiserfs_rupasov_hash(sb) ? "FORCE_RUPASOV " : "",
 118                    reiserfs_tea_hash(sb) ? "FORCE_TEA " : "",
 119                    reiserfs_hash_detect(sb) ? "DETECT_HASH " : "",
 120                    reiserfs_no_border(sb) ? "NO_BORDER " : "BORDER ",
 121                    reiserfs_no_unhashed_relocation(sb) ?
 122                    "NO_UNHASHED_RELOCATION " : "",
 123                    reiserfs_hashed_relocation(sb) ? "UNHASHED_RELOCATION " : "",
 124                    reiserfs_test4(sb) ? "TEST4 " : "",
 125                    have_large_tails(sb) ? "TAILS " : have_small_tails(sb) ?
 126                    "SMALL_TAILS " : "NO_TAILS ",
 127                    replay_only(sb) ? "REPLAY_ONLY " : "",
 128                    convert_reiserfs(sb) ? "CONV " : "",
 129                    atomic_read(&r->s_generation_counter),
 130                    SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
 131                    SF(s_do_balance), SF(s_unneeded_left_neighbor),
 132                    SF(s_good_search_by_key_reada), SF(s_bmaps),
 133                    SF(s_bmaps_without_search), SF(s_direct2indirect),
 134                    SF(s_indirect2direct), SFP(max_hash_collisions), SFP(breads),
 135                    SFP(bread_miss), SFP(search_by_key),
 136                    SFP(search_by_key_fs_changed), SFP(search_by_key_restarted),
 137                    SFP(insert_item_restarted), SFP(paste_into_item_restarted),
 138                    SFP(cut_from_item_restarted),
 139                    SFP(delete_solid_item_restarted), SFP(delete_item_restarted),
 140                    SFP(leaked_oid), SFP(leaves_removable));
 141
 142         return 0;
 143 }
 144
 145 static int show_per_level(struct seq_file *m, struct super_block *sb)
 146 {
 147         struct reiserfs_sb_info *r = REISERFS_SB(sb);
 148         int level;
 149
 150         seq_printf(m, "level\t"
 151                    "     balances"
 152                    " [sbk:  reads"
 153                    "   fs_changed"
 154                    "   restarted]"
 155                    "   free space"
 156                    "        items"
 157                    "   can_remove"
 158                    "         lnum"
 159                    "         rnum"
 160                    "       lbytes"
 161                    "       rbytes"
 162                    "     get_neig"
 163                    " get_neig_res" "  need_l_neig" "  need_r_neig" "\n");
 164
 165         for (level = 0; level < MAX_HEIGHT; ++level) {
 166                 seq_printf(m, "%i\t"
 167                            " %12lu"
 168                            " %12lu"
 169                            " %12lu"
 170                            " %12lu"
 171                            " %12lu"
 172                            " %12lu"
 173                            " %12lu"
 174                            " %12li"
 175                            " %12li"
 176                            " %12li"
 177                            " %12li"
 178                            " %12lu"
 179                            " %12lu"
 180                            " %12lu"
 181                            " %12lu"
 182                            "\n",
 183                            level,
 184                            SFPL(balance_at),
 185                            SFPL(sbk_read_at),
 186                            SFPL(sbk_fs_changed),
 187                            SFPL(sbk_restarted),
 188                            SFPL(free_at),
 189                            SFPL(items_at),
 190                            SFPL(can_node_be_removed),
 191                            SFPL(lnum),
 192                            SFPL(rnum),
 193                            SFPL(lbytes),
 194                            SFPL(rbytes),
 195                            SFPL(get_neighbors),
 196                            SFPL(get_neighbors_restart),
 197                            SFPL(need_l_neighbor), SFPL(need_r_neighbor)
 198                     );
 199         }
 200         return 0;
 201 }
 202
 203 static int show_bitmap(struct seq_file *m, struct super_block *sb)
 204 {
 205         struct reiserfs_sb_info *r = REISERFS_SB(sb);
 206
 207         seq_printf(m, "free_block: %lu\n"
 208                    "  scan_bitmap:"
 209                    "          wait"
 210                    "          bmap"
 211                    "         retry"
 212                    "        stolen"
 213                    "  journal_hint"
 214                    "journal_nohint"
 215                    "\n"
 216                    " %14lu"
 217                    " %14lu"
 218                    " %14lu"
 219                    " %14lu"
 220                    " %14lu"
 221                    " %14lu"
 222                    " %14lu"
 223                    "\n",
 224                    SFP(free_block),
 225                    SFPF(call),
 226                    SFPF(wait),
 227                    SFPF(bmap),
 228                    SFPF(retry),
 229                    SFPF(stolen),
 230                    SFPF(in_journal_hint), SFPF(in_journal_nohint));
 231
 232         return 0;
 233 }
 234
 235 static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
 236 {
 237         struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
 238         struct reiserfs_super_block *rs = sb_info->s_rs;
 239         int hash_code = DFL(s_hash_function_code);
 240         __u32 flags = DJF(s_flags);
 241
 242         seq_printf(m, "block_count: \t%i\n"
 243                    "free_blocks: \t%i\n"
 244                    "root_block: \t%i\n"
 245                    "blocksize: \t%i\n"
 246                    "oid_maxsize: \t%i\n"
 247                    "oid_cursize: \t%i\n"
 248                    "umount_state: \t%i\n"
 249                    "magic: \t%10.10s\n"
 250                    "fs_state: \t%i\n"
 251                    "hash: \t%s\n"
 252                    "tree_height: \t%i\n"
 253                    "bmap_nr: \t%i\n"
 254                    "version: \t%i\n"
 255                    "flags: \t%x[%s]\n"
 256                    "reserved_for_journal: \t%i\n",
 257                    DFL(s_block_count),
 258                    DFL(s_free_blocks),
 259                    DFL(s_root_block),
 260                    DF(s_blocksize),
 261                    DF(s_oid_maxsize),
 262                    DF(s_oid_cursize),
 263                    DF(s_umount_state),
 264                    rs->s_v1.s_magic,
 265                    DF(s_fs_state),
 266                    hash_code == TEA_HASH ? "tea" :
 267                    (hash_code == YURA_HASH) ? "rupasov" :
 268                    (hash_code == R5_HASH) ? "r5" :
 269                    (hash_code == UNSET_HASH) ? "unset" : "unknown",
 270                    DF(s_tree_height),
 271                    DF(s_bmap_nr),
 272                    DF(s_version), flags, (flags & reiserfs_attrs_cleared)
 273                    ? "attrs_cleared" : "", DF(s_reserved_for_journal));
 274
 275         return 0;
 276 }
 277
 278 static int show_oidmap(struct seq_file *m, struct super_block *sb)
 279 {
 280         struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
 281         struct reiserfs_super_block *rs = sb_info->s_rs;
 282         unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
 283         unsigned long total_used = 0;
 284         int i;
 285
 286         for (i = 0; i < mapsize; ++i) {
 287                 __u32 right;
 288
 289                 right = (i == mapsize - 1) ? MAX_KEY_OBJECTID : MAP(i + 1);
 290                 seq_printf(m, "%s: [ %x .. %x )\n",
 291                            (i & 1) ? "free" : "used", MAP(i), right);
 292                 if (!(i & 1)) {
 293                         total_used += right - MAP(i);
 294                 }
 295         }
 296 #if defined( REISERFS_USE_OIDMAPF )
 297         if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
 298                 loff_t size = sb_info->oidmap.mapf->f_path.dentry->d_inode->i_size;
 299                 total_used += size / sizeof(reiserfs_oidinterval_d_t);
 300         }
 301 #endif
 302         seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n",
 303                    mapsize,
 304                    mapsize, le16_to_cpu(rs->s_v1.s_oid_maxsize), total_used);
 305         return 0;
 306 }
 307
 308 static int show_journal(struct seq_file *m, struct super_block *sb)
 309 {
 310         struct reiserfs_sb_info *r = REISERFS_SB(sb);
 311         struct reiserfs_super_block *rs = r->s_rs;
 312         struct journal_params *jp = &rs->s_v1.s_journal;
 313         char b[BDEVNAME_SIZE];
 314
 315         seq_printf(m,           /* on-disk fields */
 316                    "jp_journal_1st_block: \t%i\n"
 317                    "jp_journal_dev: \t%s[%x]\n"
 318                    "jp_journal_size: \t%i\n"
 319                    "jp_journal_trans_max: \t%i\n"
 320                    "jp_journal_magic: \t%i\n"
 321                    "jp_journal_max_batch: \t%i\n"
 322                    "jp_journal_max_commit_age: \t%i\n"
 323                    "jp_journal_max_trans_age: \t%i\n"
 324                    /* incore fields */
 325                    "j_1st_reserved_block: \t%i\n"
 326                    "j_state: \t%li\n"
 327                    "j_trans_id: \t%lu\n"
 328                    "j_mount_id: \t%lu\n"
 329                    "j_start: \t%lu\n"
 330                    "j_len: \t%lu\n"
 331                    "j_len_alloc: \t%lu\n"
 332                    "j_wcount: \t%i\n"
 333                    "j_bcount: \t%lu\n"
 334                    "j_first_unflushed_offset: \t%lu\n"
 335                    "j_last_flush_trans_id: \t%lu\n"
 336                    "j_trans_start_time: \t%li\n"
 337                    "j_list_bitmap_index: \t%i\n"
 338                    "j_must_wait: \t%i\n"
 339                    "j_next_full_flush: \t%i\n"
 340                    "j_next_async_flush: \t%i\n"
 341                    "j_cnode_used: \t%i\n" "j_cnode_free: \t%i\n" "\n"
 342                    /* reiserfs_proc_info_data_t.journal fields */
 343                    "in_journal: \t%12lu\n"
 344                    "in_journal_bitmap: \t%12lu\n"
 345                    "in_journal_reusable: \t%12lu\n"
 346                    "lock_journal: \t%12lu\n"
 347                    "lock_journal_wait: \t%12lu\n"
 348                    "journal_begin: \t%12lu\n"
 349                    "journal_relock_writers: \t%12lu\n"
 350                    "journal_relock_wcount: \t%12lu\n"
 351                    "mark_dirty: \t%12lu\n"
 352                    "mark_dirty_already: \t%12lu\n"
 353                    "mark_dirty_notjournal: \t%12lu\n"
 354                    "restore_prepared: \t%12lu\n"
 355                    "prepare: \t%12lu\n"
 356                    "prepare_retry: \t%12lu\n",
 357                    DJP(jp_journal_1st_block),
 358                    bdevname(SB_JOURNAL(sb)->j_dev_bd, b),
 359                    DJP(jp_journal_dev),
 360                    DJP(jp_journal_size),
 361                    DJP(jp_journal_trans_max),
 362                    DJP(jp_journal_magic),
 363                    DJP(jp_journal_max_batch),
 364                    SB_JOURNAL(sb)->j_max_commit_age,
 365                    DJP(jp_journal_max_trans_age),
 366                    JF(j_1st_reserved_block),
 367                    JF(j_state),
 368                    JF(j_trans_id),
 369                    JF(j_mount_id),
 370                    JF(j_start),
 371                    JF(j_len),
 372                    JF(j_len_alloc),
 373                    atomic_read(&r->s_journal->j_wcount),
 374                    JF(j_bcount),
 375                    JF(j_first_unflushed_offset),
 376                    JF(j_last_flush_trans_id),
 377                    JF(j_trans_start_time),
 378                    JF(j_list_bitmap_index),
 379                    JF(j_must_wait),
 380                    JF(j_next_full_flush),
 381                    JF(j_next_async_flush),
 382                    JF(j_cnode_used),
 383                    JF(j_cnode_free),
 384                    SFPJ(in_journal),
 385                    SFPJ(in_journal_bitmap),
 386                    SFPJ(in_journal_reusable),
 387                    SFPJ(lock_journal),
 388                    SFPJ(lock_journal_wait),
 389                    SFPJ(journal_being),
 390                    SFPJ(journal_relock_writers),
 391                    SFPJ(journal_relock_wcount),
 392                    SFPJ(mark_dirty),
 393                    SFPJ(mark_dirty_already),
 394                    SFPJ(mark_dirty_notjournal),
 395                    SFPJ(restore_prepared), SFPJ(prepare), SFPJ(prepare_retry)
 396             );
 397         return 0;
 398 }
 399
 400 /* iterator */
 401 static int test_sb(struct super_block *sb, void *data)
 402 {
 403         return data == sb;
 404 }
 405
 406 static int set_sb(struct super_block *sb, void *data)
 407 {
 408         return -ENOENT;
 409 }
 410
 411 static void *r_start(struct seq_file *m, loff_t * pos)
 412 {
 413         struct proc_dir_entry *de = m->private;
 414         struct super_block *s = de->parent->data;
 415         loff_t l = *pos;
 416
 417         if (l)
 418                 return NULL;
 419
 420         if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, s)))
 421                 return NULL;
 422
 423         up_write(&s->s_umount);
 424
 425         if (de->deleted) {
 426                 deactivate_super(s);
 427                 return NULL;
 428         }
 429
 430         return s;
 431 }
 432
 433 static void *r_next(struct seq_file *m, void *v, loff_t * pos)
 434 {
 435         ++*pos;
 436         if (v)
 437                 deactivate_super(v);
 438         return NULL;
 439 }
 440
 441 static void r_stop(struct seq_file *m, void *v)
 442 {
 443         if (v)
 444                 deactivate_super(v);
 445 }
 446
 447 static int r_show(struct seq_file *m, void *v)
 448 {
 449         struct proc_dir_entry *de = m->private;
 450         int (*show) (struct seq_file *, struct super_block *) = de->data;
 451         return show(m, v);
 452 }
 453
 454 static struct seq_operations r_ops = {
 455         .start = r_start,
 456         .next = r_next,
 457         .stop = r_stop,
 458         .show = r_show,
 459 };
 460
 461 static int r_open(struct inode *inode, struct file *file)
 462 {
 463         int ret = seq_open(file, &r_ops);
 464
 465         if (!ret) {
 466                 struct seq_file *m = file->private_data;
 467                 m->private = PDE(inode);
 468         }
 469         return ret;
 470 }
 471
 472 static const struct file_operations r_file_operations = {
 473         .open = r_open,
 474         .read = seq_read,
 475         .llseek = seq_lseek,
 476         .release = seq_release,
 477 };
 478
 479 static struct proc_dir_entry *proc_info_root = NULL;
 480 static const char proc_info_root_name[] = "fs/reiserfs";
 481
 482 static void add_file(struct super_block *sb, char *name,
 483                      int (*func) (struct seq_file *, struct super_block *))
 484 {
 485         struct proc_dir_entry *de;
 486         de = create_proc_entry(name, 0, REISERFS_SB(sb)->procdir);
 487         if (de) {
 488                 de->data = func;
 489                 de->proc_fops = &r_file_operations;
 490         }
 491 }
 492
 493 int reiserfs_proc_info_init(struct super_block *sb)
 494 {
 495         char b[BDEVNAME_SIZE];
 496         char *s;
 497
 498         /* Some block devices use /'s */
 499         strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE);
 500         s = strchr(b, '/');
 501         if (s)
 502                 *s = '!';
 503
 504         spin_lock_init(&__PINFO(sb).lock);
 505         REISERFS_SB(sb)->procdir = proc_mkdir(b, proc_info_root);
 506         if (REISERFS_SB(sb)->procdir) {
 507                 REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
 508                 REISERFS_SB(sb)->procdir->data = sb;
 509                 add_file(sb, "version", show_version);
 510                 add_file(sb, "super", show_super);
 511                 add_file(sb, "per-level", show_per_level);
 512                 add_file(sb, "bitmap", show_bitmap);
 513                 add_file(sb, "on-disk-super", show_on_disk_super);
 514                 add_file(sb, "oidmap", show_oidmap);
 515                 add_file(sb, "journal", show_journal);
 516                 return 0;
 517         }
 518         reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
 519                          proc_info_root_name, b);
 520         return 1;
 521 }
 522
 523 int reiserfs_proc_info_done(struct super_block *sb)
 524 {
 525         struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
 526         char b[BDEVNAME_SIZE];
 527         char *s;
 528
 529         /* Some block devices use /'s */
 530         strlcpy(b, reiserfs_bdevname(sb), BDEVNAME_SIZE);
 531         s = strchr(b, '/');
 532         if (s)
 533                 *s = '!';
 534
 535         if (de) {
 536                 remove_proc_entry("journal", de);
 537                 remove_proc_entry("oidmap", de);
 538                 remove_proc_entry("on-disk-super", de);
 539                 remove_proc_entry("bitmap", de);
 540                 remove_proc_entry("per-level", de);
 541                 remove_proc_entry("super", de);
 542                 remove_proc_entry("version", de);
 543         }
 544         spin_lock(&__PINFO(sb).lock);
 545         __PINFO(sb).exiting = 1;
 546         spin_unlock(&__PINFO(sb).lock);
 547         if (proc_info_root) {
 548                 remove_proc_entry(b, proc_info_root);
 549                 REISERFS_SB(sb)->procdir = NULL;
 550         }
 551         return 0;
 552 }
 553
 554 struct proc_dir_entry *reiserfs_proc_register_global(char *name,
 555                                                      read_proc_t * func)
 556 {
 557         return (proc_info_root) ? create_proc_read_entry(name, 0,
 558                                                          proc_info_root,
 559                                                          func, NULL) : NULL;
 560 }
 561
 562 void reiserfs_proc_unregister_global(const char *name)
 563 {
 564         remove_proc_entry(name, proc_info_root);
 565 }
 566
 567 int reiserfs_proc_info_global_init(void)
 568 {
 569         if (proc_info_root == NULL) {
 570                 proc_info_root = proc_mkdir(proc_info_root_name, NULL);
 571                 if (proc_info_root) {
 572                         proc_info_root->owner = THIS_MODULE;
 573                 } else {
 574                         reiserfs_warning(NULL,
 575                                          "reiserfs: cannot create /proc/%s",
 576                                          proc_info_root_name);
 577                         return 1;
 578                 }
 579         }
 580         return 0;
 581 }
 582
 583 int reiserfs_proc_info_global_done(void)
 584 {
 585         if (proc_info_root != NULL) {
 586                 proc_info_root = NULL;
 587                 remove_proc_entry(proc_info_root_name, NULL);
 588         }
 589         return 0;
 590 }
 591
 592 /* REISERFS_PROC_INFO */
 593 #else
 594
 595 int reiserfs_proc_info_init(struct super_block *sb)
 596 {
 597         return 0;
 598 }
 599 int reiserfs_proc_info_done(struct super_block *sb)
 600 {
 601         return 0;
 602 }
 603
 604 struct proc_dir_entry *reiserfs_proc_register_global(char *name,
 605                                                      read_proc_t * func)
 606 {
 607         return NULL;
 608 }
 609
 610 void reiserfs_proc_unregister_global(const char *name)
 611 {;
 612 }
 613
 614 int reiserfs_proc_info_global_init(void)
 615 {
 616         return 0;
 617 }
 618 int reiserfs_proc_info_global_done(void)
 619 {
 620         return 0;
 621 }
 622
 623 int reiserfs_global_version_in_proc(char *buffer, char **start,
 624                                     off_t offset,
 625                                     int count, int *eof, void *data)
 626 {
 627         return 0;
 628 }
 629
 630 /* REISERFS_PROC_INFO */
 631 #endif
 632
 633 /*
 634  * $Log: procfs.c,v $
 635  * Revision 1.1.8.2  2001/07/15 17:08:42  god
 636  *  . use get_super() in procfs.c
 637  *  . remove remove_save_link() from reiserfs_do_truncate()
 638  *
 639  * I accept terms and conditions stated in the Legal Agreement
 640  * (available at http://www.namesys.com/legalese.html)
 641  *
 642  * Revision 1.1.8.1  2001/07/11 16:48:50  god
 643  * proc info support
 644  *
 645  * I accept terms and conditions stated in the Legal Agreement
 646  * (available at http://www.namesys.com/legalese.html)
 647  *
 648  */
 649
 650 /*
 651  * Make Linus happy.
 652  * Local variables:
 653  * c-indentation-style: "K&R"
 654  * mode-name: "LC"
 655  * c-basic-offset: 8
 656  * tab-width: 8
 657  * End:
 658  */