1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * f2fs debugging statistics 4 * 5 * Copyright (c) 2012 Samsung Electronics Co., Ltd. 6 * http://www.samsung.com/ 7 * Copyright (c) 2012 Linux Foundation 8 * Copyright (c) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org> 9 */ 10 11 #include <linux/fs.h> 12 #include <linux/backing-dev.h> 13 #include <linux/f2fs_fs.h> 14 #include <linux/blkdev.h> 15 #include <linux/debugfs.h> 16 #include <linux/seq_file.h> 17 18 #include "f2fs.h" 19 #include "node.h" 20 #include "segment.h" 21 #include "gc.h" 22 23 static LIST_HEAD(f2fs_stat_list); 24 static DEFINE_RAW_SPINLOCK(f2fs_stat_lock); 25 #ifdef CONFIG_DEBUG_FS 26 static struct dentry *f2fs_debugfs_root; 27 #endif 28 29 /* 30 * This function calculates BDF of every segments 31 */ 32 void f2fs_update_sit_info(struct f2fs_sb_info *sbi) 33 { 34 struct f2fs_stat_info *si = F2FS_STAT(sbi); 35 unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; 36 unsigned long long bimodal, dist; 37 unsigned int segno, vblocks; 38 int ndirty = 0; 39 40 bimodal = 0; 41 total_vblocks = 0; 42 blks_per_sec = CAP_BLKS_PER_SEC(sbi); 43 hblks_per_sec = blks_per_sec / 2; 44 for (segno = 0; segno < MAIN_SEGS(sbi); segno += SEGS_PER_SEC(sbi)) { 45 vblocks = get_valid_blocks(sbi, segno, true); 46 dist = abs(vblocks - hblks_per_sec); 47 bimodal += dist * dist; 48 49 if (vblocks > 0 && vblocks < blks_per_sec) { 50 total_vblocks += vblocks; 51 ndirty++; 52 } 53 } 54 dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100); 55 si->bimodal = div64_u64(bimodal, dist); 56 if (si->dirty_count) 57 si->avg_vblocks = div_u64(total_vblocks, ndirty); 58 else 59 si->avg_vblocks = 0; 60 } 61 62 #ifdef CONFIG_DEBUG_FS 63 static void update_multidevice_stats(struct f2fs_sb_info *sbi) 64 { 65 struct f2fs_stat_info *si = F2FS_STAT(sbi); 66 struct f2fs_dev_stats *dev_stats = si->dev_stats; 67 int i, j; 68 69 if (!f2fs_is_multi_device(sbi)) 70 return; 71 72 memset(dev_stats, 0, sizeof(struct f2fs_dev_stats) * sbi->s_ndevs); 73 for (i = 0; i < sbi->s_ndevs; i++) { 74 unsigned int start_segno, end_segno; 75 block_t start_blk, end_blk; 76 77 if (i == 0) { 78 start_blk = MAIN_BLKADDR(sbi); 79 end_blk = FDEV(i).end_blk + 1 - SEG0_BLKADDR(sbi); 80 } else { 81 start_blk = FDEV(i).start_blk; 82 end_blk = FDEV(i).end_blk + 1; 83 } 84 85 start_segno = GET_SEGNO(sbi, start_blk); 86 end_segno = GET_SEGNO(sbi, end_blk); 87 88 for (j = start_segno; j < end_segno; j++) { 89 unsigned int seg_blks, sec_blks; 90 91 seg_blks = get_seg_entry(sbi, j)->valid_blocks; 92 93 /* update segment stats */ 94 if (IS_CURSEG(sbi, j)) 95 dev_stats[i].devstats[0][DEVSTAT_INUSE]++; 96 else if (seg_blks == BLKS_PER_SEG(sbi)) 97 dev_stats[i].devstats[0][DEVSTAT_FULL]++; 98 else if (seg_blks != 0) 99 dev_stats[i].devstats[0][DEVSTAT_DIRTY]++; 100 else if (!test_bit(j, FREE_I(sbi)->free_segmap)) 101 dev_stats[i].devstats[0][DEVSTAT_FREE]++; 102 else 103 dev_stats[i].devstats[0][DEVSTAT_PREFREE]++; 104 105 if (!__is_large_section(sbi) || 106 (j % SEGS_PER_SEC(sbi)) != 0) 107 continue; 108 109 sec_blks = get_sec_entry(sbi, j)->valid_blocks; 110 111 /* update section stats */ 112 if (IS_CURSEC(sbi, GET_SEC_FROM_SEG(sbi, j))) 113 dev_stats[i].devstats[1][DEVSTAT_INUSE]++; 114 else if (sec_blks == BLKS_PER_SEC(sbi)) 115 dev_stats[i].devstats[1][DEVSTAT_FULL]++; 116 else if (sec_blks != 0) 117 dev_stats[i].devstats[1][DEVSTAT_DIRTY]++; 118 else if (!test_bit(GET_SEC_FROM_SEG(sbi, j), 119 FREE_I(sbi)->free_secmap)) 120 dev_stats[i].devstats[1][DEVSTAT_FREE]++; 121 else 122 dev_stats[i].devstats[1][DEVSTAT_PREFREE]++; 123 } 124 } 125 } 126 127 static void update_general_status(struct f2fs_sb_info *sbi) 128 { 129 struct f2fs_stat_info *si = F2FS_STAT(sbi); 130 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 131 int i; 132 133 /* these will be changed if online resize is done */ 134 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 135 si->main_area_sections = le32_to_cpu(raw_super->section_count); 136 si->main_area_zones = si->main_area_sections / 137 le32_to_cpu(raw_super->secs_per_zone); 138 139 /* general extent cache stats */ 140 for (i = 0; i < NR_EXTENT_CACHES; i++) { 141 struct extent_tree_info *eti = &sbi->extent_tree[i]; 142 143 si->hit_cached[i] = atomic64_read(&sbi->read_hit_cached[i]); 144 si->hit_rbtree[i] = atomic64_read(&sbi->read_hit_rbtree[i]); 145 si->total_ext[i] = atomic64_read(&sbi->total_hit_ext[i]); 146 si->hit_total[i] = si->hit_cached[i] + si->hit_rbtree[i]; 147 si->ext_tree[i] = atomic_read(&eti->total_ext_tree); 148 si->zombie_tree[i] = atomic_read(&eti->total_zombie_tree); 149 si->ext_node[i] = atomic_read(&eti->total_ext_node); 150 } 151 /* read extent_cache only */ 152 si->hit_largest = atomic64_read(&sbi->read_hit_largest); 153 si->hit_total[EX_READ] += si->hit_largest; 154 155 /* block age extent_cache only */ 156 si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks); 157 158 /* validation check of the segment numbers */ 159 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); 160 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); 161 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); 162 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); 163 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA); 164 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); 165 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; 166 si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; 167 si->ndonate_files = sbi->donate_files; 168 si->nquota_files = sbi->nquota_files; 169 si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; 170 si->aw_cnt = atomic_read(&sbi->atomic_files); 171 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); 172 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ); 173 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE); 174 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); 175 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); 176 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA); 177 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE); 178 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META); 179 if (SM_I(sbi)->fcc_info) { 180 si->nr_flushed = 181 atomic_read(&SM_I(sbi)->fcc_info->issued_flush); 182 si->nr_flushing = 183 atomic_read(&SM_I(sbi)->fcc_info->queued_flush); 184 si->flush_list_empty = 185 llist_empty(&SM_I(sbi)->fcc_info->issue_list); 186 } 187 if (SM_I(sbi)->dcc_info) { 188 si->nr_discarded = 189 atomic_read(&SM_I(sbi)->dcc_info->issued_discard); 190 si->nr_discarding = 191 atomic_read(&SM_I(sbi)->dcc_info->queued_discard); 192 si->nr_discard_cmd = 193 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 194 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks; 195 } 196 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt); 197 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt); 198 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt); 199 spin_lock(&sbi->cprc_info.stat_lock); 200 si->cur_ckpt_time = sbi->cprc_info.cur_time; 201 si->peak_ckpt_time = sbi->cprc_info.peak_time; 202 spin_unlock(&sbi->cprc_info.stat_lock); 203 si->total_count = BLKS_TO_SEGS(sbi, (int)sbi->user_block_count); 204 si->rsvd_segs = reserved_segments(sbi); 205 si->overp_segs = overprovision_segments(sbi); 206 si->valid_count = valid_user_blocks(sbi); 207 si->discard_blks = discard_blocks(sbi); 208 si->valid_node_count = valid_node_count(sbi); 209 si->valid_inode_count = valid_inode_count(sbi); 210 si->inline_xattr = atomic_read(&sbi->inline_xattr); 211 si->inline_inode = atomic_read(&sbi->inline_inode); 212 si->inline_dir = atomic_read(&sbi->inline_dir); 213 si->compr_inode = atomic_read(&sbi->compr_inode); 214 si->swapfile_inode = atomic_read(&sbi->swapfile_inode); 215 si->compr_blocks = atomic64_read(&sbi->compr_blocks); 216 si->append = sbi->im[APPEND_INO].ino_num; 217 si->update = sbi->im[UPDATE_INO].ino_num; 218 si->orphans = sbi->im[ORPHAN_INO].ino_num; 219 si->utilization = utilization(sbi); 220 221 si->free_segs = free_segments(sbi); 222 si->free_secs = free_sections(sbi); 223 si->prefree_count = prefree_segments(sbi); 224 si->dirty_count = dirty_segments(sbi); 225 if (sbi->node_inode) 226 si->node_pages = NODE_MAPPING(sbi)->nrpages; 227 if (sbi->meta_inode) 228 si->meta_pages = META_MAPPING(sbi)->nrpages; 229 #ifdef CONFIG_F2FS_FS_COMPRESSION 230 if (sbi->compress_inode) { 231 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages; 232 si->compress_page_hit = atomic_read(&sbi->compress_page_hit); 233 } 234 #endif 235 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT]; 236 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT]; 237 si->sits = MAIN_SEGS(sbi); 238 si->dirty_sits = SIT_I(sbi)->dirty_sentries; 239 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID]; 240 si->avail_nids = NM_I(sbi)->available_nids; 241 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID]; 242 si->io_skip_bggc = sbi->io_skip_bggc; 243 si->other_skip_bggc = sbi->other_skip_bggc; 244 si->util_free = (int)(BLKS_TO_SEGS(sbi, free_user_blocks(sbi))) 245 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 246 / 2; 247 si->util_valid = (int)(BLKS_TO_SEGS(sbi, written_block_count(sbi))) 248 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 249 / 2; 250 si->util_invalid = 50 - si->util_free - si->util_valid; 251 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) { 252 struct curseg_info *curseg = CURSEG_I(sbi, i); 253 254 si->curseg[i] = curseg->segno; 255 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); 256 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); 257 } 258 259 for (i = META_CP; i < META_MAX; i++) 260 si->meta_count[i] = atomic_read(&sbi->meta_count[i]); 261 262 for (i = 0; i < NO_CHECK_TYPE; i++) { 263 si->dirty_seg[i] = 0; 264 si->full_seg[i] = 0; 265 si->valid_blks[i] = 0; 266 } 267 268 for (i = 0; i < MAIN_SEGS(sbi); i++) { 269 int blks = get_seg_entry(sbi, i)->valid_blocks; 270 int type = get_seg_entry(sbi, i)->type; 271 272 if (!blks) 273 continue; 274 275 if (blks == BLKS_PER_SEG(sbi)) 276 si->full_seg[type]++; 277 else 278 si->dirty_seg[type]++; 279 si->valid_blks[type] += blks; 280 } 281 282 update_multidevice_stats(sbi); 283 284 for (i = 0; i < MAX_CALL_TYPE; i++) 285 si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]); 286 287 for (i = 0; i < 2; i++) { 288 si->segment_count[i] = sbi->segment_count[i]; 289 si->block_count[i] = sbi->block_count[i]; 290 } 291 292 si->inplace_count = atomic_read(&sbi->inplace_count); 293 } 294 295 /* 296 * This function calculates memory footprint. 297 */ 298 static void update_mem_info(struct f2fs_sb_info *sbi) 299 { 300 struct f2fs_stat_info *si = F2FS_STAT(sbi); 301 int i; 302 303 if (si->base_mem) 304 goto get_cache; 305 306 /* build stat */ 307 si->base_mem = sizeof(struct f2fs_stat_info); 308 309 /* build superblock */ 310 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; 311 si->base_mem += 2 * sizeof(struct f2fs_inode_info); 312 si->base_mem += sizeof(*sbi->ckpt); 313 314 /* build sm */ 315 si->base_mem += sizeof(struct f2fs_sm_info); 316 317 /* build sit */ 318 si->base_mem += sizeof(struct sit_info); 319 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); 320 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 321 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 322 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 323 si->base_mem += SIT_VBLOCK_MAP_SIZE; 324 if (__is_large_section(sbi)) 325 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); 326 si->base_mem += __bitmap_size(sbi, SIT_BITMAP); 327 328 /* build free segmap */ 329 si->base_mem += sizeof(struct free_segmap_info); 330 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 331 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 332 333 /* build curseg */ 334 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; 335 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; 336 337 /* build dirty segmap */ 338 si->base_mem += sizeof(struct dirty_seglist_info); 339 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); 340 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 341 342 /* build nm */ 343 si->base_mem += sizeof(struct f2fs_nm_info); 344 si->base_mem += __bitmap_size(sbi, NAT_BITMAP); 345 si->base_mem += F2FS_BLK_TO_BYTES(NM_I(sbi)->nat_bits_blocks); 346 si->base_mem += NM_I(sbi)->nat_blocks * 347 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); 348 si->base_mem += NM_I(sbi)->nat_blocks / 8; 349 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); 350 351 get_cache: 352 si->cache_mem = 0; 353 354 /* build gc */ 355 if (sbi->gc_thread) 356 si->cache_mem += sizeof(struct f2fs_gc_kthread); 357 358 /* build merge flush thread */ 359 if (SM_I(sbi)->fcc_info) 360 si->cache_mem += sizeof(struct flush_cmd_control); 361 if (SM_I(sbi)->dcc_info) { 362 si->cache_mem += sizeof(struct discard_cmd_control); 363 si->cache_mem += sizeof(struct discard_cmd) * 364 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 365 } 366 367 /* free nids */ 368 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + 369 NM_I(sbi)->nid_cnt[PREALLOC_NID]) * 370 sizeof(struct free_nid); 371 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] * 372 sizeof(struct nat_entry); 373 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] * 374 sizeof(struct nat_entry_set); 375 for (i = 0; i < MAX_INO_ENTRY; i++) 376 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); 377 378 for (i = 0; i < NR_EXTENT_CACHES; i++) { 379 struct extent_tree_info *eti = &sbi->extent_tree[i]; 380 381 si->ext_mem[i] = atomic_read(&eti->total_ext_tree) * 382 sizeof(struct extent_tree); 383 si->ext_mem[i] += atomic_read(&eti->total_ext_node) * 384 sizeof(struct extent_node); 385 si->cache_mem += si->ext_mem[i]; 386 } 387 388 si->page_mem = 0; 389 if (sbi->node_inode) { 390 unsigned long npages = NODE_MAPPING(sbi)->nrpages; 391 392 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 393 } 394 if (sbi->meta_inode) { 395 unsigned long npages = META_MAPPING(sbi)->nrpages; 396 397 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 398 } 399 #ifdef CONFIG_F2FS_FS_COMPRESSION 400 if (sbi->compress_inode) { 401 unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages; 402 403 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 404 } 405 #endif 406 } 407 408 static const char *s_flag[MAX_SBI_FLAG] = { 409 [SBI_IS_DIRTY] = "fs_dirty", 410 [SBI_IS_CLOSE] = "closing", 411 [SBI_NEED_FSCK] = "need_fsck", 412 [SBI_POR_DOING] = "recovering", 413 [SBI_NEED_SB_WRITE] = "sb_dirty", 414 [SBI_NEED_CP] = "need_cp", 415 [SBI_IS_SHUTDOWN] = "shutdown", 416 [SBI_IS_RECOVERED] = "recovered", 417 [SBI_CP_DISABLED] = "cp_disabled", 418 [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick", 419 [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush", 420 [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush", 421 [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair", 422 [SBI_IS_RESIZEFS] = "resizefs", 423 [SBI_IS_FREEZING] = "freezefs", 424 [SBI_IS_WRITABLE] = "writable", 425 }; 426 427 static const char *ipu_mode_names[F2FS_IPU_MAX] = { 428 [F2FS_IPU_FORCE] = "FORCE", 429 [F2FS_IPU_SSR] = "SSR", 430 [F2FS_IPU_UTIL] = "UTIL", 431 [F2FS_IPU_SSR_UTIL] = "SSR_UTIL", 432 [F2FS_IPU_FSYNC] = "FSYNC", 433 [F2FS_IPU_ASYNC] = "ASYNC", 434 [F2FS_IPU_NOCACHE] = "NOCACHE", 435 [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE", 436 }; 437 438 static int stat_show(struct seq_file *s, void *v) 439 { 440 struct f2fs_stat_info *si; 441 int i = 0, j = 0; 442 unsigned long flags; 443 444 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 445 list_for_each_entry(si, &f2fs_stat_list, stat_list) { 446 struct f2fs_sb_info *sbi = si->sbi; 447 448 update_general_status(sbi); 449 450 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", 451 sbi->sb->s_bdev, i++, 452 f2fs_readonly(sbi->sb) ? "RO" : "RW", 453 is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ? 454 "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good")); 455 if (sbi->s_flag) { 456 seq_puts(s, "[SBI:"); 457 for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG) 458 seq_printf(s, " %s", s_flag[j]); 459 seq_puts(s, "]\n"); 460 } 461 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", 462 si->sit_area_segs, si->nat_area_segs); 463 seq_printf(s, "[SSA: %d] [MAIN: %d", 464 si->ssa_area_segs, si->main_area_segs); 465 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", 466 si->overp_segs, si->rsvd_segs); 467 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", 468 ktime_get_boottime_seconds(), 469 SIT_I(sbi)->mounted_time); 470 471 seq_puts(s, "Policy:\n"); 472 seq_puts(s, " - IPU: ["); 473 if (IS_F2FS_IPU_DISABLE(sbi)) { 474 seq_puts(s, " DISABLE"); 475 } else { 476 unsigned long policy = SM_I(sbi)->ipu_policy; 477 478 for_each_set_bit(j, &policy, F2FS_IPU_MAX) 479 seq_printf(s, " %s", ipu_mode_names[j]); 480 } 481 seq_puts(s, " ]\n\n"); 482 483 if (test_opt(sbi, DISCARD)) 484 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", 485 si->utilization, si->valid_count, si->discard_blks); 486 else 487 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", 488 si->utilization, si->valid_count); 489 490 seq_printf(s, " - Node: %u (Inode: %u, ", 491 si->valid_node_count, si->valid_inode_count); 492 seq_printf(s, "Other: %u)\n - Data: %u\n", 493 si->valid_node_count - si->valid_inode_count, 494 si->valid_count - si->valid_node_count); 495 seq_printf(s, " - Inline_xattr Inode: %u\n", 496 si->inline_xattr); 497 seq_printf(s, " - Inline_data Inode: %u\n", 498 si->inline_inode); 499 seq_printf(s, " - Inline_dentry Inode: %u\n", 500 si->inline_dir); 501 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n", 502 si->compr_inode, si->compr_blocks); 503 seq_printf(s, " - Swapfile Inode: %u\n", 504 si->swapfile_inode); 505 seq_printf(s, " - Donate Inode: %u\n", 506 si->ndonate_files); 507 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", 508 si->orphans, si->append, si->update); 509 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", 510 si->main_area_segs, si->main_area_sections, 511 si->main_area_zones); 512 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n", 513 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); 514 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n", 515 si->curseg[CURSEG_COLD_DATA], 516 si->cursec[CURSEG_COLD_DATA], 517 si->curzone[CURSEG_COLD_DATA], 518 si->dirty_seg[CURSEG_COLD_DATA], 519 si->full_seg[CURSEG_COLD_DATA], 520 si->valid_blks[CURSEG_COLD_DATA]); 521 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n", 522 si->curseg[CURSEG_WARM_DATA], 523 si->cursec[CURSEG_WARM_DATA], 524 si->curzone[CURSEG_WARM_DATA], 525 si->dirty_seg[CURSEG_WARM_DATA], 526 si->full_seg[CURSEG_WARM_DATA], 527 si->valid_blks[CURSEG_WARM_DATA]); 528 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n", 529 si->curseg[CURSEG_HOT_DATA], 530 si->cursec[CURSEG_HOT_DATA], 531 si->curzone[CURSEG_HOT_DATA], 532 si->dirty_seg[CURSEG_HOT_DATA], 533 si->full_seg[CURSEG_HOT_DATA], 534 si->valid_blks[CURSEG_HOT_DATA]); 535 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n", 536 si->curseg[CURSEG_HOT_NODE], 537 si->cursec[CURSEG_HOT_NODE], 538 si->curzone[CURSEG_HOT_NODE], 539 si->dirty_seg[CURSEG_HOT_NODE], 540 si->full_seg[CURSEG_HOT_NODE], 541 si->valid_blks[CURSEG_HOT_NODE]); 542 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n", 543 si->curseg[CURSEG_WARM_NODE], 544 si->cursec[CURSEG_WARM_NODE], 545 si->curzone[CURSEG_WARM_NODE], 546 si->dirty_seg[CURSEG_WARM_NODE], 547 si->full_seg[CURSEG_WARM_NODE], 548 si->valid_blks[CURSEG_WARM_NODE]); 549 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n", 550 si->curseg[CURSEG_COLD_NODE], 551 si->cursec[CURSEG_COLD_NODE], 552 si->curzone[CURSEG_COLD_NODE], 553 si->dirty_seg[CURSEG_COLD_NODE], 554 si->full_seg[CURSEG_COLD_NODE], 555 si->valid_blks[CURSEG_COLD_NODE]); 556 seq_printf(s, " - Pinned file: %8d %8d %8d\n", 557 si->curseg[CURSEG_COLD_DATA_PINNED], 558 si->cursec[CURSEG_COLD_DATA_PINNED], 559 si->curzone[CURSEG_COLD_DATA_PINNED]); 560 seq_printf(s, " - ATGC data: %8d %8d %8d\n", 561 si->curseg[CURSEG_ALL_DATA_ATGC], 562 si->cursec[CURSEG_ALL_DATA_ATGC], 563 si->curzone[CURSEG_ALL_DATA_ATGC]); 564 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", 565 si->main_area_segs - si->dirty_count - 566 si->prefree_count - si->free_segs, 567 si->dirty_count); 568 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", 569 si->prefree_count, si->free_segs, si->free_secs); 570 if (f2fs_is_multi_device(sbi)) { 571 seq_puts(s, "Multidevice stats:\n"); 572 seq_printf(s, " [seg: %8s %8s %8s %8s %8s]", 573 "inuse", "dirty", "full", "free", "prefree"); 574 if (__is_large_section(sbi)) 575 seq_printf(s, " [sec: %8s %8s %8s %8s %8s]\n", 576 "inuse", "dirty", "full", "free", "prefree"); 577 else 578 seq_puts(s, "\n"); 579 580 for (i = 0; i < sbi->s_ndevs; i++) { 581 seq_printf(s, " #%-2d %8u %8u %8u %8u %8u", i, 582 si->dev_stats[i].devstats[0][DEVSTAT_INUSE], 583 si->dev_stats[i].devstats[0][DEVSTAT_DIRTY], 584 si->dev_stats[i].devstats[0][DEVSTAT_FULL], 585 si->dev_stats[i].devstats[0][DEVSTAT_FREE], 586 si->dev_stats[i].devstats[0][DEVSTAT_PREFREE]); 587 if (!__is_large_section(sbi)) { 588 seq_puts(s, "\n"); 589 continue; 590 } 591 seq_printf(s, " %8u %8u %8u %8u %8u\n", 592 si->dev_stats[i].devstats[1][DEVSTAT_INUSE], 593 si->dev_stats[i].devstats[1][DEVSTAT_DIRTY], 594 si->dev_stats[i].devstats[1][DEVSTAT_FULL], 595 si->dev_stats[i].devstats[1][DEVSTAT_FREE], 596 si->dev_stats[i].devstats[1][DEVSTAT_PREFREE]); 597 } 598 seq_puts(s, "\n"); 599 } 600 seq_printf(s, "CP calls: %d (BG: %d)\n", 601 si->cp_call_count[TOTAL_CALL], 602 si->cp_call_count[BACKGROUND]); 603 seq_printf(s, "CP count: %d\n", si->cp_count); 604 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]); 605 seq_printf(s, " - sit blocks : %u\n", 606 si->meta_count[META_SIT]); 607 seq_printf(s, " - nat blocks : %u\n", 608 si->meta_count[META_NAT]); 609 seq_printf(s, " - ssa blocks : %u\n", 610 si->meta_count[META_SSA]); 611 seq_puts(s, "CP merge:\n"); 612 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt); 613 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt); 614 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt); 615 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time); 616 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time); 617 seq_printf(s, "GC calls: %d (gc_thread: %d)\n", 618 si->gc_call_count[BACKGROUND] + 619 si->gc_call_count[FOREGROUND], 620 si->gc_call_count[BACKGROUND]); 621 if (__is_large_section(sbi)) { 622 seq_printf(s, " - data sections : %d (BG: %d)\n", 623 si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC], 624 si->gc_secs[DATA][BG_GC]); 625 seq_printf(s, " - node sections : %d (BG: %d)\n", 626 si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC], 627 si->gc_secs[NODE][BG_GC]); 628 } 629 seq_printf(s, " - data segments : %d (BG: %d)\n", 630 si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC], 631 si->gc_segs[DATA][BG_GC]); 632 seq_printf(s, " - node segments : %d (BG: %d)\n", 633 si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC], 634 si->gc_segs[NODE][BG_GC]); 635 seq_puts(s, " - Reclaimed segs :\n"); 636 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]); 637 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]); 638 seq_printf(s, " - Idle Greedy : %d\n", 639 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); 640 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]); 641 seq_printf(s, " - Urgent High : %d\n", 642 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]); 643 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]); 644 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]); 645 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, 646 si->bg_data_blks + si->bg_node_blks); 647 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, 648 si->bg_data_blks); 649 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, 650 si->bg_node_blks); 651 seq_printf(s, "BG skip : IO: %u, Other: %u\n", 652 si->io_skip_bggc, si->other_skip_bggc); 653 seq_puts(s, "\nExtent Cache (Read):\n"); 654 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", 655 si->hit_largest, si->hit_cached[EX_READ], 656 si->hit_rbtree[EX_READ]); 657 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 658 !si->total_ext[EX_READ] ? 0 : 659 div64_u64(si->hit_total[EX_READ] * 100, 660 si->total_ext[EX_READ]), 661 si->hit_total[EX_READ], si->total_ext[EX_READ]); 662 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 663 si->ext_tree[EX_READ], si->zombie_tree[EX_READ], 664 si->ext_node[EX_READ]); 665 seq_puts(s, "\nExtent Cache (Block Age):\n"); 666 seq_printf(s, " - Allocated Data Blocks: %llu\n", 667 si->allocated_data_blocks); 668 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n", 669 si->hit_cached[EX_BLOCK_AGE], 670 si->hit_rbtree[EX_BLOCK_AGE]); 671 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 672 !si->total_ext[EX_BLOCK_AGE] ? 0 : 673 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100, 674 si->total_ext[EX_BLOCK_AGE]), 675 si->hit_total[EX_BLOCK_AGE], 676 si->total_ext[EX_BLOCK_AGE]); 677 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 678 si->ext_tree[EX_BLOCK_AGE], 679 si->zombie_tree[EX_BLOCK_AGE], 680 si->ext_node[EX_BLOCK_AGE]); 681 seq_puts(s, "\nBalancing F2FS Async:\n"); 682 seq_printf(s, " - DIO (R: %4d, W: %4d)\n", 683 si->nr_dio_read, si->nr_dio_write); 684 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", 685 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); 686 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ", 687 si->nr_wb_cp_data, si->nr_wb_data, 688 si->nr_flushing, si->nr_flushed, 689 si->flush_list_empty); 690 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", 691 si->nr_discarding, si->nr_discarded, 692 si->nr_discard_cmd, si->undiscard_blks); 693 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n", 694 si->aw_cnt, si->max_aw_cnt); 695 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); 696 seq_printf(s, " - nodes: %4d in %4d\n", 697 si->ndirty_node, si->node_pages); 698 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", 699 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); 700 seq_printf(s, " - data: %4d in files:%4d\n", 701 si->ndirty_data, si->ndirty_files); 702 seq_printf(s, " - quota data: %4d in quota files:%4d\n", 703 si->ndirty_qdata, si->nquota_files); 704 seq_printf(s, " - meta: %4d in %4d\n", 705 si->ndirty_meta, si->meta_pages); 706 seq_printf(s, " - imeta: %4d\n", 707 si->ndirty_imeta); 708 seq_printf(s, " - fsync mark: %4lld\n", 709 percpu_counter_sum_positive( 710 &sbi->rf_node_block_count)); 711 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", 712 si->dirty_nats, si->nats, si->dirty_sits, si->sits); 713 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", 714 si->free_nids, si->avail_nids, si->alloc_nids); 715 seq_puts(s, "\nDistribution of User Blocks:"); 716 seq_puts(s, " [ valid | invalid | free ]\n"); 717 seq_puts(s, " ["); 718 719 for (j = 0; j < si->util_valid; j++) 720 seq_putc(s, '-'); 721 seq_putc(s, '|'); 722 723 for (j = 0; j < si->util_invalid; j++) 724 seq_putc(s, '-'); 725 seq_putc(s, '|'); 726 727 for (j = 0; j < si->util_free; j++) 728 seq_putc(s, '-'); 729 seq_puts(s, "]\n\n"); 730 seq_printf(s, "IPU: %u blocks\n", si->inplace_count); 731 seq_printf(s, "SSR: %u blocks in %u segments\n", 732 si->block_count[SSR], si->segment_count[SSR]); 733 seq_printf(s, "LFS: %u blocks in %u segments\n", 734 si->block_count[LFS], si->segment_count[LFS]); 735 736 /* segment usage info */ 737 f2fs_update_sit_info(sbi); 738 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", 739 si->bimodal, si->avg_vblocks); 740 741 /* memory footprint */ 742 update_mem_info(sbi); 743 seq_printf(s, "\nMemory: %llu KB\n", 744 (si->base_mem + si->cache_mem + si->page_mem) >> 10); 745 seq_printf(s, " - static: %llu KB\n", 746 si->base_mem >> 10); 747 seq_printf(s, " - cached all: %llu KB\n", 748 si->cache_mem >> 10); 749 seq_printf(s, " - read extent cache: %llu KB\n", 750 si->ext_mem[EX_READ] >> 10); 751 seq_printf(s, " - block age extent cache: %llu KB\n", 752 si->ext_mem[EX_BLOCK_AGE] >> 10); 753 seq_printf(s, " - paged : %llu KB\n", 754 si->page_mem >> 10); 755 } 756 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 757 return 0; 758 } 759 760 DEFINE_SHOW_ATTRIBUTE(stat); 761 #endif 762 763 int f2fs_build_stats(struct f2fs_sb_info *sbi) 764 { 765 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 766 struct f2fs_stat_info *si; 767 struct f2fs_dev_stats *dev_stats; 768 unsigned long flags; 769 int i; 770 771 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); 772 if (!si) 773 return -ENOMEM; 774 775 dev_stats = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_stats) * 776 sbi->s_ndevs, GFP_KERNEL); 777 if (!dev_stats) { 778 kfree(si); 779 return -ENOMEM; 780 } 781 782 si->dev_stats = dev_stats; 783 784 si->all_area_segs = le32_to_cpu(raw_super->segment_count); 785 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); 786 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); 787 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); 788 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 789 si->main_area_sections = le32_to_cpu(raw_super->section_count); 790 si->main_area_zones = si->main_area_sections / 791 le32_to_cpu(raw_super->secs_per_zone); 792 si->sbi = sbi; 793 sbi->stat_info = si; 794 795 /* general extent cache stats */ 796 for (i = 0; i < NR_EXTENT_CACHES; i++) { 797 atomic64_set(&sbi->total_hit_ext[i], 0); 798 atomic64_set(&sbi->read_hit_rbtree[i], 0); 799 atomic64_set(&sbi->read_hit_cached[i], 0); 800 } 801 802 /* read extent_cache only */ 803 atomic64_set(&sbi->read_hit_largest, 0); 804 805 atomic_set(&sbi->inline_xattr, 0); 806 atomic_set(&sbi->inline_inode, 0); 807 atomic_set(&sbi->inline_dir, 0); 808 atomic_set(&sbi->compr_inode, 0); 809 atomic64_set(&sbi->compr_blocks, 0); 810 atomic_set(&sbi->swapfile_inode, 0); 811 atomic_set(&sbi->atomic_files, 0); 812 atomic_set(&sbi->inplace_count, 0); 813 for (i = META_CP; i < META_MAX; i++) 814 atomic_set(&sbi->meta_count[i], 0); 815 for (i = 0; i < MAX_CALL_TYPE; i++) 816 atomic_set(&sbi->cp_call_count[i], 0); 817 818 atomic_set(&sbi->max_aw_cnt, 0); 819 820 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 821 list_add_tail(&si->stat_list, &f2fs_stat_list); 822 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 823 824 return 0; 825 } 826 827 void f2fs_destroy_stats(struct f2fs_sb_info *sbi) 828 { 829 struct f2fs_stat_info *si = F2FS_STAT(sbi); 830 unsigned long flags; 831 832 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 833 list_del(&si->stat_list); 834 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 835 836 kfree(si->dev_stats); 837 kfree(si); 838 } 839 840 void __init f2fs_create_root_stats(void) 841 { 842 #ifdef CONFIG_DEBUG_FS 843 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); 844 845 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL, 846 &stat_fops); 847 #endif 848 } 849 850 void f2fs_destroy_root_stats(void) 851 { 852 #ifdef CONFIG_DEBUG_FS 853 debugfs_remove_recursive(f2fs_debugfs_root); 854 f2fs_debugfs_root = NULL; 855 #endif 856 } 857