fs/reiserfs/procfs.c

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