0001
0002
0003
0004
0005
0006
0007
0008
0009
0010
0011 #include <linux/module.h>
0012 #include <linux/time.h>
0013 #include <linux/seq_file.h>
0014 #include <linux/uaccess.h>
0015 #include "reiserfs.h"
0016 #include <linux/init.h>
0017 #include <linux/proc_fs.h>
0018 #include <linux/blkdev.h>
0019
0020
0021
0022
0023
0024
0025
0026
0027 static int show_version(struct seq_file *m, void *unused)
0028 {
0029 struct super_block *sb = m->private;
0030 char *format;
0031
0032 if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
0033 format = "3.6";
0034 } else if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_5)) {
0035 format = "3.5";
0036 } else {
0037 format = "unknown";
0038 }
0039
0040 seq_printf(m, "%s format\twith checks %s\n", format,
0041 #if defined( CONFIG_REISERFS_CHECK )
0042 "on"
0043 #else
0044 "off"
0045 #endif
0046 );
0047 return 0;
0048 }
0049
0050 #define SF( x ) ( r -> x )
0051 #define SFP( x ) SF( s_proc_info_data.x )
0052 #define SFPL( x ) SFP( x[ level ] )
0053 #define SFPF( x ) SFP( scan_bitmap.x )
0054 #define SFPJ( x ) SFP( journal.x )
0055
0056 #define D2C( x ) le16_to_cpu( x )
0057 #define D4C( x ) le32_to_cpu( x )
0058 #define DF( x ) D2C( rs -> s_v1.x )
0059 #define DFL( x ) D4C( rs -> s_v1.x )
0060
0061 #define objectid_map( s, rs ) (old_format_only (s) ? \
0062 (__le32 *)((struct reiserfs_super_block_v1 *)rs + 1) : \
0063 (__le32 *)(rs + 1))
0064 #define MAP( i ) D4C( objectid_map( sb, rs )[ i ] )
0065
0066 #define DJF( x ) le32_to_cpu( rs -> x )
0067 #define DJP( x ) le32_to_cpu( jp -> x )
0068 #define JF( x ) ( r -> s_journal -> x )
0069
0070 static int show_super(struct seq_file *m, void *unused)
0071 {
0072 struct super_block *sb = m->private;
0073 struct reiserfs_sb_info *r = REISERFS_SB(sb);
0074
0075 seq_printf(m, "state: \t%s\n"
0076 "mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
0077 "gen. counter: \t%i\n"
0078 "s_disk_reads: \t%i\n"
0079 "s_disk_writes: \t%i\n"
0080 "s_fix_nodes: \t%i\n"
0081 "s_do_balance: \t%i\n"
0082 "s_unneeded_left_neighbor: \t%i\n"
0083 "s_good_search_by_key_reada: \t%i\n"
0084 "s_bmaps: \t%i\n"
0085 "s_bmaps_without_search: \t%i\n"
0086 "s_direct2indirect: \t%i\n"
0087 "s_indirect2direct: \t%i\n"
0088 "\n"
0089 "max_hash_collisions: \t%i\n"
0090 "breads: \t%lu\n"
0091 "bread_misses: \t%lu\n"
0092 "search_by_key: \t%lu\n"
0093 "search_by_key_fs_changed: \t%lu\n"
0094 "search_by_key_restarted: \t%lu\n"
0095 "insert_item_restarted: \t%lu\n"
0096 "paste_into_item_restarted: \t%lu\n"
0097 "cut_from_item_restarted: \t%lu\n"
0098 "delete_solid_item_restarted: \t%lu\n"
0099 "delete_item_restarted: \t%lu\n"
0100 "leaked_oid: \t%lu\n"
0101 "leaves_removable: \t%lu\n",
0102 SF(s_mount_state) == REISERFS_VALID_FS ?
0103 "REISERFS_VALID_FS" : "REISERFS_ERROR_FS",
0104 reiserfs_r5_hash(sb) ? "FORCE_R5 " : "",
0105 reiserfs_rupasov_hash(sb) ? "FORCE_RUPASOV " : "",
0106 reiserfs_tea_hash(sb) ? "FORCE_TEA " : "",
0107 reiserfs_hash_detect(sb) ? "DETECT_HASH " : "",
0108 reiserfs_no_border(sb) ? "NO_BORDER " : "BORDER ",
0109 reiserfs_no_unhashed_relocation(sb) ?
0110 "NO_UNHASHED_RELOCATION " : "",
0111 reiserfs_hashed_relocation(sb) ? "UNHASHED_RELOCATION " : "",
0112 reiserfs_test4(sb) ? "TEST4 " : "",
0113 have_large_tails(sb) ? "TAILS " : have_small_tails(sb) ?
0114 "SMALL_TAILS " : "NO_TAILS ",
0115 replay_only(sb) ? "REPLAY_ONLY " : "",
0116 convert_reiserfs(sb) ? "CONV " : "",
0117 atomic_read(&r->s_generation_counter),
0118 SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
0119 SF(s_do_balance), SF(s_unneeded_left_neighbor),
0120 SF(s_good_search_by_key_reada), SF(s_bmaps),
0121 SF(s_bmaps_without_search), SF(s_direct2indirect),
0122 SF(s_indirect2direct), SFP(max_hash_collisions), SFP(breads),
0123 SFP(bread_miss), SFP(search_by_key),
0124 SFP(search_by_key_fs_changed), SFP(search_by_key_restarted),
0125 SFP(insert_item_restarted), SFP(paste_into_item_restarted),
0126 SFP(cut_from_item_restarted),
0127 SFP(delete_solid_item_restarted), SFP(delete_item_restarted),
0128 SFP(leaked_oid), SFP(leaves_removable));
0129
0130 return 0;
0131 }
0132
0133 static int show_per_level(struct seq_file *m, void *unused)
0134 {
0135 struct super_block *sb = m->private;
0136 struct reiserfs_sb_info *r = REISERFS_SB(sb);
0137 int level;
0138
0139 seq_printf(m, "level\t"
0140 " balances"
0141 " [sbk: reads"
0142 " fs_changed"
0143 " restarted]"
0144 " free space"
0145 " items"
0146 " can_remove"
0147 " lnum"
0148 " rnum"
0149 " lbytes"
0150 " rbytes"
0151 " get_neig"
0152 " get_neig_res" " need_l_neig" " need_r_neig" "\n");
0153
0154 for (level = 0; level < MAX_HEIGHT; ++level) {
0155 seq_printf(m, "%i\t"
0156 " %12lu"
0157 " %12lu"
0158 " %12lu"
0159 " %12lu"
0160 " %12lu"
0161 " %12lu"
0162 " %12lu"
0163 " %12li"
0164 " %12li"
0165 " %12li"
0166 " %12li"
0167 " %12lu"
0168 " %12lu"
0169 " %12lu"
0170 " %12lu"
0171 "\n",
0172 level,
0173 SFPL(balance_at),
0174 SFPL(sbk_read_at),
0175 SFPL(sbk_fs_changed),
0176 SFPL(sbk_restarted),
0177 SFPL(free_at),
0178 SFPL(items_at),
0179 SFPL(can_node_be_removed),
0180 SFPL(lnum),
0181 SFPL(rnum),
0182 SFPL(lbytes),
0183 SFPL(rbytes),
0184 SFPL(get_neighbors),
0185 SFPL(get_neighbors_restart),
0186 SFPL(need_l_neighbor), SFPL(need_r_neighbor)
0187 );
0188 }
0189 return 0;
0190 }
0191
0192 static int show_bitmap(struct seq_file *m, void *unused)
0193 {
0194 struct super_block *sb = m->private;
0195 struct reiserfs_sb_info *r = REISERFS_SB(sb);
0196
0197 seq_printf(m, "free_block: %lu\n"
0198 " scan_bitmap:"
0199 " wait"
0200 " bmap"
0201 " retry"
0202 " stolen"
0203 " journal_hint"
0204 "journal_nohint"
0205 "\n"
0206 " %14lu"
0207 " %14lu"
0208 " %14lu"
0209 " %14lu"
0210 " %14lu"
0211 " %14lu"
0212 " %14lu"
0213 "\n",
0214 SFP(free_block),
0215 SFPF(call),
0216 SFPF(wait),
0217 SFPF(bmap),
0218 SFPF(retry),
0219 SFPF(stolen),
0220 SFPF(in_journal_hint), SFPF(in_journal_nohint));
0221
0222 return 0;
0223 }
0224
0225 static int show_on_disk_super(struct seq_file *m, void *unused)
0226 {
0227 struct super_block *sb = m->private;
0228 struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
0229 struct reiserfs_super_block *rs = sb_info->s_rs;
0230 int hash_code = DFL(s_hash_function_code);
0231 __u32 flags = DJF(s_flags);
0232
0233 seq_printf(m, "block_count: \t%i\n"
0234 "free_blocks: \t%i\n"
0235 "root_block: \t%i\n"
0236 "blocksize: \t%i\n"
0237 "oid_maxsize: \t%i\n"
0238 "oid_cursize: \t%i\n"
0239 "umount_state: \t%i\n"
0240 "magic: \t%10.10s\n"
0241 "fs_state: \t%i\n"
0242 "hash: \t%s\n"
0243 "tree_height: \t%i\n"
0244 "bmap_nr: \t%i\n"
0245 "version: \t%i\n"
0246 "flags: \t%x[%s]\n"
0247 "reserved_for_journal: \t%i\n",
0248 DFL(s_block_count),
0249 DFL(s_free_blocks),
0250 DFL(s_root_block),
0251 DF(s_blocksize),
0252 DF(s_oid_maxsize),
0253 DF(s_oid_cursize),
0254 DF(s_umount_state),
0255 rs->s_v1.s_magic,
0256 DF(s_fs_state),
0257 hash_code == TEA_HASH ? "tea" :
0258 (hash_code == YURA_HASH) ? "rupasov" :
0259 (hash_code == R5_HASH) ? "r5" :
0260 (hash_code == UNSET_HASH) ? "unset" : "unknown",
0261 DF(s_tree_height),
0262 DF(s_bmap_nr),
0263 DF(s_version), flags, (flags & reiserfs_attrs_cleared)
0264 ? "attrs_cleared" : "", DF(s_reserved_for_journal));
0265
0266 return 0;
0267 }
0268
0269 static int show_oidmap(struct seq_file *m, void *unused)
0270 {
0271 struct super_block *sb = m->private;
0272 struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
0273 struct reiserfs_super_block *rs = sb_info->s_rs;
0274 unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
0275 unsigned long total_used = 0;
0276 int i;
0277
0278 for (i = 0; i < mapsize; ++i) {
0279 __u32 right;
0280
0281 right = (i == mapsize - 1) ? MAX_KEY_OBJECTID : MAP(i + 1);
0282 seq_printf(m, "%s: [ %x .. %x )\n",
0283 (i & 1) ? "free" : "used", MAP(i), right);
0284 if (!(i & 1)) {
0285 total_used += right - MAP(i);
0286 }
0287 }
0288 #if defined( REISERFS_USE_OIDMAPF )
0289 if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
0290 loff_t size = file_inode(sb_info->oidmap.mapf)->i_size;
0291 total_used += size / sizeof(reiserfs_oidinterval_d_t);
0292 }
0293 #endif
0294 seq_printf(m, "total: \t%i [%i/%i] used: %lu [exact]\n",
0295 mapsize,
0296 mapsize, le16_to_cpu(rs->s_v1.s_oid_maxsize), total_used);
0297 return 0;
0298 }
0299
0300 static time64_t ktime_mono_to_real_seconds(time64_t mono)
0301 {
0302 ktime_t kt = ktime_set(mono, NSEC_PER_SEC/2);
0303
0304 return ktime_divns(ktime_mono_to_real(kt), NSEC_PER_SEC);
0305 }
0306
0307 static int show_journal(struct seq_file *m, void *unused)
0308 {
0309 struct super_block *sb = m->private;
0310 struct reiserfs_sb_info *r = REISERFS_SB(sb);
0311 struct reiserfs_super_block *rs = r->s_rs;
0312 struct journal_params *jp = &rs->s_v1.s_journal;
0313
0314 seq_printf(m,
0315 "jp_journal_1st_block: \t%i\n"
0316 "jp_journal_dev: \t%pg[%x]\n"
0317 "jp_journal_size: \t%i\n"
0318 "jp_journal_trans_max: \t%i\n"
0319 "jp_journal_magic: \t%i\n"
0320 "jp_journal_max_batch: \t%i\n"
0321 "jp_journal_max_commit_age: \t%i\n"
0322 "jp_journal_max_trans_age: \t%i\n"
0323
0324 "j_1st_reserved_block: \t%i\n"
0325 "j_state: \t%li\n"
0326 "j_trans_id: \t%u\n"
0327 "j_mount_id: \t%lu\n"
0328 "j_start: \t%lu\n"
0329 "j_len: \t%lu\n"
0330 "j_len_alloc: \t%lu\n"
0331 "j_wcount: \t%i\n"
0332 "j_bcount: \t%lu\n"
0333 "j_first_unflushed_offset: \t%lu\n"
0334 "j_last_flush_trans_id: \t%u\n"
0335 "j_trans_start_time: \t%lli\n"
0336 "j_list_bitmap_index: \t%i\n"
0337 "j_must_wait: \t%i\n"
0338 "j_next_full_flush: \t%i\n"
0339 "j_next_async_flush: \t%i\n"
0340 "j_cnode_used: \t%i\n" "j_cnode_free: \t%i\n" "\n"
0341
0342 "in_journal: \t%12lu\n"
0343 "in_journal_bitmap: \t%12lu\n"
0344 "in_journal_reusable: \t%12lu\n"
0345 "lock_journal: \t%12lu\n"
0346 "lock_journal_wait: \t%12lu\n"
0347 "journal_begin: \t%12lu\n"
0348 "journal_relock_writers: \t%12lu\n"
0349 "journal_relock_wcount: \t%12lu\n"
0350 "mark_dirty: \t%12lu\n"
0351 "mark_dirty_already: \t%12lu\n"
0352 "mark_dirty_notjournal: \t%12lu\n"
0353 "restore_prepared: \t%12lu\n"
0354 "prepare: \t%12lu\n"
0355 "prepare_retry: \t%12lu\n",
0356 DJP(jp_journal_1st_block),
0357 SB_JOURNAL(sb)->j_dev_bd,
0358 DJP(jp_journal_dev),
0359 DJP(jp_journal_size),
0360 DJP(jp_journal_trans_max),
0361 DJP(jp_journal_magic),
0362 DJP(jp_journal_max_batch),
0363 SB_JOURNAL(sb)->j_max_commit_age,
0364 DJP(jp_journal_max_trans_age),
0365 JF(j_1st_reserved_block),
0366 JF(j_state),
0367 JF(j_trans_id),
0368 JF(j_mount_id),
0369 JF(j_start),
0370 JF(j_len),
0371 JF(j_len_alloc),
0372 atomic_read(&r->s_journal->j_wcount),
0373 JF(j_bcount),
0374 JF(j_first_unflushed_offset),
0375 JF(j_last_flush_trans_id),
0376 ktime_mono_to_real_seconds(JF(j_trans_start_time)),
0377 JF(j_list_bitmap_index),
0378 JF(j_must_wait),
0379 JF(j_next_full_flush),
0380 JF(j_next_async_flush),
0381 JF(j_cnode_used),
0382 JF(j_cnode_free),
0383 SFPJ(in_journal),
0384 SFPJ(in_journal_bitmap),
0385 SFPJ(in_journal_reusable),
0386 SFPJ(lock_journal),
0387 SFPJ(lock_journal_wait),
0388 SFPJ(journal_being),
0389 SFPJ(journal_relock_writers),
0390 SFPJ(journal_relock_wcount),
0391 SFPJ(mark_dirty),
0392 SFPJ(mark_dirty_already),
0393 SFPJ(mark_dirty_notjournal),
0394 SFPJ(restore_prepared), SFPJ(prepare), SFPJ(prepare_retry)
0395 );
0396 return 0;
0397 }
0398
0399 static struct proc_dir_entry *proc_info_root = NULL;
0400 static const char proc_info_root_name[] = "fs/reiserfs";
0401
0402 static void add_file(struct super_block *sb, char *name,
0403 int (*func) (struct seq_file *, void *))
0404 {
0405 proc_create_single_data(name, 0, REISERFS_SB(sb)->procdir, func, sb);
0406 }
0407
0408 int reiserfs_proc_info_init(struct super_block *sb)
0409 {
0410 char b[BDEVNAME_SIZE];
0411 char *s;
0412
0413
0414 strlcpy(b, sb->s_id, BDEVNAME_SIZE);
0415 s = strchr(b, '/');
0416 if (s)
0417 *s = '!';
0418
0419 spin_lock_init(&__PINFO(sb).lock);
0420 REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb);
0421 if (REISERFS_SB(sb)->procdir) {
0422 add_file(sb, "version", show_version);
0423 add_file(sb, "super", show_super);
0424 add_file(sb, "per-level", show_per_level);
0425 add_file(sb, "bitmap", show_bitmap);
0426 add_file(sb, "on-disk-super", show_on_disk_super);
0427 add_file(sb, "oidmap", show_oidmap);
0428 add_file(sb, "journal", show_journal);
0429 return 0;
0430 }
0431 reiserfs_warning(sb, "cannot create /proc/%s/%s",
0432 proc_info_root_name, b);
0433 return 1;
0434 }
0435
0436 int reiserfs_proc_info_done(struct super_block *sb)
0437 {
0438 struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
0439 if (de) {
0440 char b[BDEVNAME_SIZE];
0441 char *s;
0442
0443
0444 strlcpy(b, sb->s_id, BDEVNAME_SIZE);
0445 s = strchr(b, '/');
0446 if (s)
0447 *s = '!';
0448
0449 remove_proc_subtree(b, proc_info_root);
0450 REISERFS_SB(sb)->procdir = NULL;
0451 }
0452 return 0;
0453 }
0454
0455 int reiserfs_proc_info_global_init(void)
0456 {
0457 if (proc_info_root == NULL) {
0458 proc_info_root = proc_mkdir(proc_info_root_name, NULL);
0459 if (!proc_info_root) {
0460 reiserfs_warning(NULL, "cannot create /proc/%s",
0461 proc_info_root_name);
0462 return 1;
0463 }
0464 }
0465 return 0;
0466 }
0467
0468 int reiserfs_proc_info_global_done(void)
0469 {
0470 if (proc_info_root != NULL) {
0471 proc_info_root = NULL;
0472 remove_proc_entry(proc_info_root_name, NULL);
0473 }
0474 return 0;
0475 }
0476
0477
0478
0479
0480
0481
0482
0483
0484
0485
0486
0487
0488
0489
0490
