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_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; 442 443 spin_lock(&f2fs_stat_lock); 444 list_for_each_entry(si, &f2fs_stat_list, stat_list) { 445 struct f2fs_sb_info *sbi = si->sbi; 446 447 update_general_status(sbi); 448 449 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", 450 sbi->sb->s_bdev, i++, 451 f2fs_readonly(sbi->sb) ? "RO" : "RW", 452 is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ? 453 "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good")); 454 if (sbi->s_flag) { 455 seq_puts(s, "[SBI:"); 456 for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG) 457 seq_printf(s, " %s", s_flag[j]); 458 seq_puts(s, "]\n"); 459 } 460 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", 461 si->sit_area_segs, si->nat_area_segs); 462 seq_printf(s, "[SSA: %d] [MAIN: %d", 463 si->ssa_area_segs, si->main_area_segs); 464 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", 465 si->overp_segs, si->rsvd_segs); 466 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", 467 ktime_get_boottime_seconds(), 468 SIT_I(sbi)->mounted_time); 469 470 seq_puts(s, "Policy:\n"); 471 seq_puts(s, " - IPU: ["); 472 if (IS_F2FS_IPU_DISABLE(sbi)) { 473 seq_puts(s, " DISABLE"); 474 } else { 475 unsigned long policy = SM_I(sbi)->ipu_policy; 476 477 for_each_set_bit(j, &policy, F2FS_IPU_MAX) 478 seq_printf(s, " %s", ipu_mode_names[j]); 479 } 480 seq_puts(s, " ]\n\n"); 481 482 if (test_opt(sbi, DISCARD)) 483 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", 484 si->utilization, si->valid_count, si->discard_blks); 485 else 486 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", 487 si->utilization, si->valid_count); 488 489 seq_printf(s, " - Node: %u (Inode: %u, ", 490 si->valid_node_count, si->valid_inode_count); 491 seq_printf(s, "Other: %u)\n - Data: %u\n", 492 si->valid_node_count - si->valid_inode_count, 493 si->valid_count - si->valid_node_count); 494 seq_printf(s, " - Inline_xattr Inode: %u\n", 495 si->inline_xattr); 496 seq_printf(s, " - Inline_data Inode: %u\n", 497 si->inline_inode); 498 seq_printf(s, " - Inline_dentry Inode: %u\n", 499 si->inline_dir); 500 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n", 501 si->compr_inode, si->compr_blocks); 502 seq_printf(s, " - Swapfile Inode: %u\n", 503 si->swapfile_inode); 504 seq_printf(s, " - Donate Inode: %u\n", 505 si->ndonate_files); 506 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", 507 si->orphans, si->append, si->update); 508 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", 509 si->main_area_segs, si->main_area_sections, 510 si->main_area_zones); 511 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n", 512 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); 513 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n", 514 si->curseg[CURSEG_COLD_DATA], 515 si->cursec[CURSEG_COLD_DATA], 516 si->curzone[CURSEG_COLD_DATA], 517 si->dirty_seg[CURSEG_COLD_DATA], 518 si->full_seg[CURSEG_COLD_DATA], 519 si->valid_blks[CURSEG_COLD_DATA]); 520 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n", 521 si->curseg[CURSEG_WARM_DATA], 522 si->cursec[CURSEG_WARM_DATA], 523 si->curzone[CURSEG_WARM_DATA], 524 si->dirty_seg[CURSEG_WARM_DATA], 525 si->full_seg[CURSEG_WARM_DATA], 526 si->valid_blks[CURSEG_WARM_DATA]); 527 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n", 528 si->curseg[CURSEG_HOT_DATA], 529 si->cursec[CURSEG_HOT_DATA], 530 si->curzone[CURSEG_HOT_DATA], 531 si->dirty_seg[CURSEG_HOT_DATA], 532 si->full_seg[CURSEG_HOT_DATA], 533 si->valid_blks[CURSEG_HOT_DATA]); 534 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n", 535 si->curseg[CURSEG_HOT_NODE], 536 si->cursec[CURSEG_HOT_NODE], 537 si->curzone[CURSEG_HOT_NODE], 538 si->dirty_seg[CURSEG_HOT_NODE], 539 si->full_seg[CURSEG_HOT_NODE], 540 si->valid_blks[CURSEG_HOT_NODE]); 541 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n", 542 si->curseg[CURSEG_WARM_NODE], 543 si->cursec[CURSEG_WARM_NODE], 544 si->curzone[CURSEG_WARM_NODE], 545 si->dirty_seg[CURSEG_WARM_NODE], 546 si->full_seg[CURSEG_WARM_NODE], 547 si->valid_blks[CURSEG_WARM_NODE]); 548 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n", 549 si->curseg[CURSEG_COLD_NODE], 550 si->cursec[CURSEG_COLD_NODE], 551 si->curzone[CURSEG_COLD_NODE], 552 si->dirty_seg[CURSEG_COLD_NODE], 553 si->full_seg[CURSEG_COLD_NODE], 554 si->valid_blks[CURSEG_COLD_NODE]); 555 seq_printf(s, " - Pinned file: %8d %8d %8d\n", 556 si->curseg[CURSEG_COLD_DATA_PINNED], 557 si->cursec[CURSEG_COLD_DATA_PINNED], 558 si->curzone[CURSEG_COLD_DATA_PINNED]); 559 seq_printf(s, " - ATGC data: %8d %8d %8d\n", 560 si->curseg[CURSEG_ALL_DATA_ATGC], 561 si->cursec[CURSEG_ALL_DATA_ATGC], 562 si->curzone[CURSEG_ALL_DATA_ATGC]); 563 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", 564 si->main_area_segs - si->dirty_count - 565 si->prefree_count - si->free_segs, 566 si->dirty_count); 567 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", 568 si->prefree_count, si->free_segs, si->free_secs); 569 if (f2fs_is_multi_device(sbi)) { 570 seq_puts(s, "Multidevice stats:\n"); 571 seq_printf(s, " [seg: %8s %8s %8s %8s %8s]", 572 "inuse", "dirty", "full", "free", "prefree"); 573 if (__is_large_section(sbi)) 574 seq_printf(s, " [sec: %8s %8s %8s %8s %8s]\n", 575 "inuse", "dirty", "full", "free", "prefree"); 576 else 577 seq_puts(s, "\n"); 578 579 for (i = 0; i < sbi->s_ndevs; i++) { 580 seq_printf(s, " #%-2d %8u %8u %8u %8u %8u", i, 581 si->dev_stats[i].devstats[0][DEVSTAT_INUSE], 582 si->dev_stats[i].devstats[0][DEVSTAT_DIRTY], 583 si->dev_stats[i].devstats[0][DEVSTAT_FULL], 584 si->dev_stats[i].devstats[0][DEVSTAT_FREE], 585 si->dev_stats[i].devstats[0][DEVSTAT_PREFREE]); 586 if (!__is_large_section(sbi)) { 587 seq_puts(s, "\n"); 588 continue; 589 } 590 seq_printf(s, " %8u %8u %8u %8u %8u\n", 591 si->dev_stats[i].devstats[1][DEVSTAT_INUSE], 592 si->dev_stats[i].devstats[1][DEVSTAT_DIRTY], 593 si->dev_stats[i].devstats[1][DEVSTAT_FULL], 594 si->dev_stats[i].devstats[1][DEVSTAT_FREE], 595 si->dev_stats[i].devstats[1][DEVSTAT_PREFREE]); 596 } 597 seq_puts(s, "\n"); 598 } 599 seq_printf(s, "CP calls: %d (BG: %d)\n", 600 si->cp_call_count[TOTAL_CALL], 601 si->cp_call_count[BACKGROUND]); 602 seq_printf(s, "CP count: %d\n", si->cp_count); 603 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]); 604 seq_printf(s, " - sit blocks : %u\n", 605 si->meta_count[META_SIT]); 606 seq_printf(s, " - nat blocks : %u\n", 607 si->meta_count[META_NAT]); 608 seq_printf(s, " - ssa blocks : %u\n", 609 si->meta_count[META_SSA]); 610 seq_puts(s, "CP merge:\n"); 611 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt); 612 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt); 613 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt); 614 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time); 615 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time); 616 seq_printf(s, "GC calls: %d (gc_thread: %d)\n", 617 si->gc_call_count[BACKGROUND] + 618 si->gc_call_count[FOREGROUND], 619 si->gc_call_count[BACKGROUND]); 620 if (__is_large_section(sbi)) { 621 seq_printf(s, " - data sections : %d (BG: %d)\n", 622 si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC], 623 si->gc_secs[DATA][BG_GC]); 624 seq_printf(s, " - node sections : %d (BG: %d)\n", 625 si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC], 626 si->gc_secs[NODE][BG_GC]); 627 } 628 seq_printf(s, " - data segments : %d (BG: %d)\n", 629 si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC], 630 si->gc_segs[DATA][BG_GC]); 631 seq_printf(s, " - node segments : %d (BG: %d)\n", 632 si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC], 633 si->gc_segs[NODE][BG_GC]); 634 seq_puts(s, " - Reclaimed segs :\n"); 635 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]); 636 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]); 637 seq_printf(s, " - Idle Greedy : %d\n", 638 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); 639 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]); 640 seq_printf(s, " - Urgent High : %d\n", 641 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]); 642 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]); 643 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]); 644 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, 645 si->bg_data_blks + si->bg_node_blks); 646 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, 647 si->bg_data_blks); 648 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, 649 si->bg_node_blks); 650 seq_printf(s, "BG skip : IO: %u, Other: %u\n", 651 si->io_skip_bggc, si->other_skip_bggc); 652 seq_puts(s, "\nExtent Cache (Read):\n"); 653 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", 654 si->hit_largest, si->hit_cached[EX_READ], 655 si->hit_rbtree[EX_READ]); 656 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 657 !si->total_ext[EX_READ] ? 0 : 658 div64_u64(si->hit_total[EX_READ] * 100, 659 si->total_ext[EX_READ]), 660 si->hit_total[EX_READ], si->total_ext[EX_READ]); 661 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 662 si->ext_tree[EX_READ], si->zombie_tree[EX_READ], 663 si->ext_node[EX_READ]); 664 seq_puts(s, "\nExtent Cache (Block Age):\n"); 665 seq_printf(s, " - Allocated Data Blocks: %llu\n", 666 si->allocated_data_blocks); 667 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n", 668 si->hit_cached[EX_BLOCK_AGE], 669 si->hit_rbtree[EX_BLOCK_AGE]); 670 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 671 !si->total_ext[EX_BLOCK_AGE] ? 0 : 672 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100, 673 si->total_ext[EX_BLOCK_AGE]), 674 si->hit_total[EX_BLOCK_AGE], 675 si->total_ext[EX_BLOCK_AGE]); 676 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 677 si->ext_tree[EX_BLOCK_AGE], 678 si->zombie_tree[EX_BLOCK_AGE], 679 si->ext_node[EX_BLOCK_AGE]); 680 seq_puts(s, "\nBalancing F2FS Async:\n"); 681 seq_printf(s, " - DIO (R: %4d, W: %4d)\n", 682 si->nr_dio_read, si->nr_dio_write); 683 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", 684 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); 685 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ", 686 si->nr_wb_cp_data, si->nr_wb_data, 687 si->nr_flushing, si->nr_flushed, 688 si->flush_list_empty); 689 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", 690 si->nr_discarding, si->nr_discarded, 691 si->nr_discard_cmd, si->undiscard_blks); 692 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n", 693 si->aw_cnt, si->max_aw_cnt); 694 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); 695 seq_printf(s, " - nodes: %4d in %4d\n", 696 si->ndirty_node, si->node_pages); 697 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", 698 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); 699 seq_printf(s, " - data: %4d in files:%4d\n", 700 si->ndirty_data, si->ndirty_files); 701 seq_printf(s, " - quota data: %4d in quota files:%4d\n", 702 si->ndirty_qdata, si->nquota_files); 703 seq_printf(s, " - meta: %4d in %4d\n", 704 si->ndirty_meta, si->meta_pages); 705 seq_printf(s, " - imeta: %4d\n", 706 si->ndirty_imeta); 707 seq_printf(s, " - fsync mark: %4lld\n", 708 percpu_counter_sum_positive( 709 &sbi->rf_node_block_count)); 710 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", 711 si->dirty_nats, si->nats, si->dirty_sits, si->sits); 712 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", 713 si->free_nids, si->avail_nids, si->alloc_nids); 714 seq_puts(s, "\nDistribution of User Blocks:"); 715 seq_puts(s, " [ valid | invalid | free ]\n"); 716 seq_puts(s, " ["); 717 718 for (j = 0; j < si->util_valid; j++) 719 seq_putc(s, '-'); 720 seq_putc(s, '|'); 721 722 for (j = 0; j < si->util_invalid; j++) 723 seq_putc(s, '-'); 724 seq_putc(s, '|'); 725 726 for (j = 0; j < si->util_free; j++) 727 seq_putc(s, '-'); 728 seq_puts(s, "]\n\n"); 729 seq_printf(s, "IPU: %u blocks\n", si->inplace_count); 730 seq_printf(s, "SSR: %u blocks in %u segments\n", 731 si->block_count[SSR], si->segment_count[SSR]); 732 seq_printf(s, "LFS: %u blocks in %u segments\n", 733 si->block_count[LFS], si->segment_count[LFS]); 734 735 /* segment usage info */ 736 f2fs_update_sit_info(sbi); 737 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", 738 si->bimodal, si->avg_vblocks); 739 740 /* memory footprint */ 741 update_mem_info(sbi); 742 seq_printf(s, "\nMemory: %llu KB\n", 743 (si->base_mem + si->cache_mem + si->page_mem) >> 10); 744 seq_printf(s, " - static: %llu KB\n", 745 si->base_mem >> 10); 746 seq_printf(s, " - cached all: %llu KB\n", 747 si->cache_mem >> 10); 748 seq_printf(s, " - read extent cache: %llu KB\n", 749 si->ext_mem[EX_READ] >> 10); 750 seq_printf(s, " - block age extent cache: %llu KB\n", 751 si->ext_mem[EX_BLOCK_AGE] >> 10); 752 seq_printf(s, " - paged : %llu KB\n", 753 si->page_mem >> 10); 754 } 755 spin_unlock(&f2fs_stat_lock); 756 return 0; 757 } 758 759 DEFINE_SHOW_ATTRIBUTE(stat); 760 #endif 761 762 int f2fs_build_stats(struct f2fs_sb_info *sbi) 763 { 764 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 765 struct f2fs_stat_info *si; 766 struct f2fs_dev_stats *dev_stats; 767 int i; 768 769 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); 770 if (!si) 771 return -ENOMEM; 772 773 dev_stats = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_stats) * 774 sbi->s_ndevs, GFP_KERNEL); 775 if (!dev_stats) { 776 kfree(si); 777 return -ENOMEM; 778 } 779 780 si->dev_stats = dev_stats; 781 782 si->all_area_segs = le32_to_cpu(raw_super->segment_count); 783 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); 784 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); 785 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); 786 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 787 si->main_area_sections = le32_to_cpu(raw_super->section_count); 788 si->main_area_zones = si->main_area_sections / 789 le32_to_cpu(raw_super->secs_per_zone); 790 si->sbi = sbi; 791 sbi->stat_info = si; 792 793 /* general extent cache stats */ 794 for (i = 0; i < NR_EXTENT_CACHES; i++) { 795 atomic64_set(&sbi->total_hit_ext[i], 0); 796 atomic64_set(&sbi->read_hit_rbtree[i], 0); 797 atomic64_set(&sbi->read_hit_cached[i], 0); 798 } 799 800 /* read extent_cache only */ 801 atomic64_set(&sbi->read_hit_largest, 0); 802 803 atomic_set(&sbi->inline_xattr, 0); 804 atomic_set(&sbi->inline_inode, 0); 805 atomic_set(&sbi->inline_dir, 0); 806 atomic_set(&sbi->compr_inode, 0); 807 atomic64_set(&sbi->compr_blocks, 0); 808 atomic_set(&sbi->swapfile_inode, 0); 809 atomic_set(&sbi->atomic_files, 0); 810 atomic_set(&sbi->inplace_count, 0); 811 for (i = META_CP; i < META_MAX; i++) 812 atomic_set(&sbi->meta_count[i], 0); 813 for (i = 0; i < MAX_CALL_TYPE; i++) 814 atomic_set(&sbi->cp_call_count[i], 0); 815 816 atomic_set(&sbi->max_aw_cnt, 0); 817 818 spin_lock(&f2fs_stat_lock); 819 list_add_tail(&si->stat_list, &f2fs_stat_list); 820 spin_unlock(&f2fs_stat_lock); 821 822 return 0; 823 } 824 825 void f2fs_destroy_stats(struct f2fs_sb_info *sbi) 826 { 827 struct f2fs_stat_info *si = F2FS_STAT(sbi); 828 829 spin_lock(&f2fs_stat_lock); 830 list_del(&si->stat_list); 831 spin_unlock(&f2fs_stat_lock); 832 833 kfree(si->dev_stats); 834 kfree(si); 835 } 836 837 void __init f2fs_create_root_stats(void) 838 { 839 #ifdef CONFIG_DEBUG_FS 840 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); 841 842 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL, 843 &stat_fops); 844 #endif 845 } 846 847 void f2fs_destroy_root_stats(void) 848 { 849 #ifdef CONFIG_DEBUG_FS 850 debugfs_remove_recursive(f2fs_debugfs_root); 851 f2fs_debugfs_root = NULL; 852 #endif 853 } 854