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debug.c
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linux-6.19.14/fs/f2fs/debug.c
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 23static LIST_HEAD(f2fs_stat_list); 24static DEFINE_SPINLOCK(f2fs_stat_lock); 25#ifdef CONFIG_DEBUG_FS 26static struct dentry *f2fs_debugfs_root; 27#endif 28 29/* 30 * This function calculates BDF of every segments 31 */ 32void 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 63static 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 127static 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->blkoff[i] = curseg->next_blkoff; 255 si->curseg[i] = curseg->segno; 256 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); 257 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); 258 } 259 260 for (i = META_CP; i < META_MAX; i++) 261 si->meta_count[i] = atomic_read(&sbi->meta_count[i]); 262 263 for (i = 0; i < NO_CHECK_TYPE; i++) { 264 si->dirty_seg[i] = 0; 265 si->full_seg[i] = 0; 266 si->valid_blks[i] = 0; 267 } 268 269 for (i = 0; i < MAIN_SEGS(sbi); i++) { 270 int blks = get_seg_entry(sbi, i)->valid_blocks; 271 int type = get_seg_entry(sbi, i)->type; 272 273 if (!blks) 274 continue; 275 276 if (blks == BLKS_PER_SEG(sbi)) 277 si->full_seg[type]++; 278 else 279 si->dirty_seg[type]++; 280 si->valid_blks[type] += blks; 281 } 282 283 update_multidevice_stats(sbi); 284 285 for (i = 0; i < MAX_CALL_TYPE; i++) 286 si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]); 287 288 for (i = 0; i < 2; i++) { 289 si->segment_count[i] = sbi->segment_count[i]; 290 si->block_count[i] = sbi->block_count[i]; 291 } 292 293 si->inplace_count = atomic_read(&sbi->inplace_count); 294} 295 296/* 297 * This function calculates memory footprint. 298 */ 299static void update_mem_info(struct f2fs_sb_info *sbi) 300{ 301 struct f2fs_stat_info *si = F2FS_STAT(sbi); 302 int i; 303 304 if (si->base_mem) 305 goto get_cache; 306 307 /* build stat */ 308 si->base_mem = sizeof(struct f2fs_stat_info); 309 310 /* build superblock */ 311 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; 312 si->base_mem += 2 * sizeof(struct f2fs_inode_info); 313 si->base_mem += sizeof(*sbi->ckpt); 314 315 /* build sm */ 316 si->base_mem += sizeof(struct f2fs_sm_info); 317 318 /* build sit */ 319 si->base_mem += sizeof(struct sit_info); 320 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); 321 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 322 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 323 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 324 si->base_mem += SIT_VBLOCK_MAP_SIZE; 325 if (__is_large_section(sbi)) 326 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); 327 si->base_mem += __bitmap_size(sbi, SIT_BITMAP); 328 329 /* build free segmap */ 330 si->base_mem += sizeof(struct free_segmap_info); 331 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 332 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 333 334 /* build curseg */ 335 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; 336 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; 337 338 /* build dirty segmap */ 339 si->base_mem += sizeof(struct dirty_seglist_info); 340 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); 341 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 342 343 /* build nm */ 344 si->base_mem += sizeof(struct f2fs_nm_info); 345 si->base_mem += __bitmap_size(sbi, NAT_BITMAP); 346 si->base_mem += F2FS_BLK_TO_BYTES(NM_I(sbi)->nat_bits_blocks); 347 si->base_mem += NM_I(sbi)->nat_blocks * 348 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); 349 si->base_mem += NM_I(sbi)->nat_blocks / 8; 350 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); 351 352get_cache: 353 si->cache_mem = 0; 354 355 /* build gc */ 356 if (sbi->gc_thread) 357 si->cache_mem += sizeof(struct f2fs_gc_kthread); 358 359 /* build merge flush thread */ 360 if (SM_I(sbi)->fcc_info) 361 si->cache_mem += sizeof(struct flush_cmd_control); 362 if (SM_I(sbi)->dcc_info) { 363 si->cache_mem += sizeof(struct discard_cmd_control); 364 si->cache_mem += sizeof(struct discard_cmd) * 365 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 366 } 367 368 /* free nids */ 369 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + 370 NM_I(sbi)->nid_cnt[PREALLOC_NID]) * 371 sizeof(struct free_nid); 372 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] * 373 sizeof(struct nat_entry); 374 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] * 375 sizeof(struct nat_entry_set); 376 for (i = 0; i < MAX_INO_ENTRY; i++) 377 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); 378 379 for (i = 0; i < NR_EXTENT_CACHES; i++) { 380 struct extent_tree_info *eti = &sbi->extent_tree[i]; 381 382 si->ext_mem[i] = atomic_read(&eti->total_ext_tree) * 383 sizeof(struct extent_tree); 384 si->ext_mem[i] += atomic_read(&eti->total_ext_node) * 385 sizeof(struct extent_node); 386 si->cache_mem += si->ext_mem[i]; 387 } 388 389 si->page_mem = 0; 390 if (sbi->node_inode) { 391 unsigned long npages = NODE_MAPPING(sbi)->nrpages; 392 393 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 394 } 395 if (sbi->meta_inode) { 396 unsigned long npages = META_MAPPING(sbi)->nrpages; 397 398 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 399 } 400#ifdef CONFIG_F2FS_FS_COMPRESSION 401 if (sbi->compress_inode) { 402 unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages; 403 404 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 405 } 406#endif 407} 408 409static const char *s_flag[MAX_SBI_FLAG] = { 410 [SBI_IS_DIRTY] = "fs_dirty", 411 [SBI_IS_CLOSE] = "closing", 412 [SBI_NEED_FSCK] = "need_fsck", 413 [SBI_POR_DOING] = "recovering", 414 [SBI_NEED_SB_WRITE] = "sb_dirty", 415 [SBI_NEED_CP] = "need_cp", 416 [SBI_IS_SHUTDOWN] = "shutdown", 417 [SBI_IS_RECOVERED] = "recovered", 418 [SBI_CP_DISABLED] = "cp_disabled", 419 [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick", 420 [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush", 421 [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush", 422 [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair", 423 [SBI_IS_RESIZEFS] = "resizefs", 424 [SBI_IS_FREEZING] = "freezefs", 425 [SBI_IS_WRITABLE] = "writable", 426}; 427 428static const char *ipu_mode_names[F2FS_IPU_MAX] = { 429 [F2FS_IPU_FORCE] = "FORCE", 430 [F2FS_IPU_SSR] = "SSR", 431 [F2FS_IPU_UTIL] = "UTIL", 432 [F2FS_IPU_SSR_UTIL] = "SSR_UTIL", 433 [F2FS_IPU_FSYNC] = "FSYNC", 434 [F2FS_IPU_ASYNC] = "ASYNC", 435 [F2FS_IPU_NOCACHE] = "NOCACHE", 436 [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE", 437}; 438 439static int stat_show(struct seq_file *s, void *v) 440{ 441 struct f2fs_stat_info *si; 442 int i = 0, j = 0; 443 444 spin_lock(&f2fs_stat_lock); 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 %8s %10s %10s %10s\n", 513 "blkoff", "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); 514 seq_printf(s, " - COLD data: %8d %8d %8d %8d %10u %10u %10u\n", 515 si->blkoff[CURSEG_COLD_DATA], 516 si->curseg[CURSEG_COLD_DATA], 517 si->cursec[CURSEG_COLD_DATA], 518 si->curzone[CURSEG_COLD_DATA], 519 si->dirty_seg[CURSEG_COLD_DATA], 520 si->full_seg[CURSEG_COLD_DATA], 521 si->valid_blks[CURSEG_COLD_DATA]); 522 seq_printf(s, " - WARM data: %8d %8d %8d %8d %10u %10u %10u\n", 523 si->blkoff[CURSEG_WARM_DATA], 524 si->curseg[CURSEG_WARM_DATA], 525 si->cursec[CURSEG_WARM_DATA], 526 si->curzone[CURSEG_WARM_DATA], 527 si->dirty_seg[CURSEG_WARM_DATA], 528 si->full_seg[CURSEG_WARM_DATA], 529 si->valid_blks[CURSEG_WARM_DATA]); 530 seq_printf(s, " - HOT data: %8d %8d %8d %8d %10u %10u %10u\n", 531 si->blkoff[CURSEG_HOT_DATA], 532 si->curseg[CURSEG_HOT_DATA], 533 si->cursec[CURSEG_HOT_DATA], 534 si->curzone[CURSEG_HOT_DATA], 535 si->dirty_seg[CURSEG_HOT_DATA], 536 si->full_seg[CURSEG_HOT_DATA], 537 si->valid_blks[CURSEG_HOT_DATA]); 538 seq_printf(s, " - Dir dnode: %8d %8d %8d %8d %10u %10u %10u\n", 539 si->blkoff[CURSEG_HOT_NODE], 540 si->curseg[CURSEG_HOT_NODE], 541 si->cursec[CURSEG_HOT_NODE], 542 si->curzone[CURSEG_HOT_NODE], 543 si->dirty_seg[CURSEG_HOT_NODE], 544 si->full_seg[CURSEG_HOT_NODE], 545 si->valid_blks[CURSEG_HOT_NODE]); 546 seq_printf(s, " - File dnode: %8d %8d %8d %8d %10u %10u %10u\n", 547 si->blkoff[CURSEG_WARM_NODE], 548 si->curseg[CURSEG_WARM_NODE], 549 si->cursec[CURSEG_WARM_NODE], 550 si->curzone[CURSEG_WARM_NODE], 551 si->dirty_seg[CURSEG_WARM_NODE], 552 si->full_seg[CURSEG_WARM_NODE], 553 si->valid_blks[CURSEG_WARM_NODE]); 554 seq_printf(s, " - Indir nodes: %8d %8d %8d %8d %10u %10u %10u\n", 555 si->blkoff[CURSEG_COLD_NODE], 556 si->curseg[CURSEG_COLD_NODE], 557 si->cursec[CURSEG_COLD_NODE], 558 si->curzone[CURSEG_COLD_NODE], 559 si->dirty_seg[CURSEG_COLD_NODE], 560 si->full_seg[CURSEG_COLD_NODE], 561 si->valid_blks[CURSEG_COLD_NODE]); 562 seq_printf(s, " - Pinned file: %8d %8d %8d %8d\n", 563 si->blkoff[CURSEG_COLD_DATA_PINNED], 564 si->curseg[CURSEG_COLD_DATA_PINNED], 565 si->cursec[CURSEG_COLD_DATA_PINNED], 566 si->curzone[CURSEG_COLD_DATA_PINNED]); 567 seq_printf(s, " - ATGC data: %8d %8d %8d %8d\n", 568 si->blkoff[CURSEG_ALL_DATA_ATGC], 569 si->curseg[CURSEG_ALL_DATA_ATGC], 570 si->cursec[CURSEG_ALL_DATA_ATGC], 571 si->curzone[CURSEG_ALL_DATA_ATGC]); 572 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", 573 si->main_area_segs - si->dirty_count - 574 si->prefree_count - si->free_segs, 575 si->dirty_count); 576 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", 577 si->prefree_count, si->free_segs, si->free_secs); 578 if (f2fs_is_multi_device(sbi)) { 579 seq_puts(s, "Multidevice stats:\n"); 580 seq_printf(s, " [seg: %8s %8s %8s %8s %8s]", 581 "inuse", "dirty", "full", "free", "prefree"); 582 if (__is_large_section(sbi)) 583 seq_printf(s, " [sec: %8s %8s %8s %8s %8s]\n", 584 "inuse", "dirty", "full", "free", "prefree"); 585 else 586 seq_puts(s, "\n"); 587 588 for (i = 0; i < sbi->s_ndevs; i++) { 589 seq_printf(s, " #%-2d %8u %8u %8u %8u %8u", i, 590 si->dev_stats[i].devstats[0][DEVSTAT_INUSE], 591 si->dev_stats[i].devstats[0][DEVSTAT_DIRTY], 592 si->dev_stats[i].devstats[0][DEVSTAT_FULL], 593 si->dev_stats[i].devstats[0][DEVSTAT_FREE], 594 si->dev_stats[i].devstats[0][DEVSTAT_PREFREE]); 595 if (!__is_large_section(sbi)) { 596 seq_puts(s, "\n"); 597 continue; 598 } 599 seq_printf(s, " %8u %8u %8u %8u %8u\n", 600 si->dev_stats[i].devstats[1][DEVSTAT_INUSE], 601 si->dev_stats[i].devstats[1][DEVSTAT_DIRTY], 602 si->dev_stats[i].devstats[1][DEVSTAT_FULL], 603 si->dev_stats[i].devstats[1][DEVSTAT_FREE], 604 si->dev_stats[i].devstats[1][DEVSTAT_PREFREE]); 605 } 606 seq_puts(s, "\n"); 607 } 608 seq_printf(s, "CP calls: %d (BG: %d)\n", 609 si->cp_call_count[TOTAL_CALL], 610 si->cp_call_count[BACKGROUND]); 611 seq_printf(s, "CP count: %d\n", si->cp_count); 612 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]); 613 seq_printf(s, " - sit blocks : %u\n", 614 si->meta_count[META_SIT]); 615 seq_printf(s, " - nat blocks : %u\n", 616 si->meta_count[META_NAT]); 617 seq_printf(s, " - ssa blocks : %u\n", 618 si->meta_count[META_SSA]); 619 seq_puts(s, "CP merge:\n"); 620 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt); 621 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt); 622 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt); 623 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time); 624 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time); 625 seq_printf(s, "GC calls: %d (gc_thread: %d)\n", 626 si->gc_call_count[BACKGROUND] + 627 si->gc_call_count[FOREGROUND], 628 si->gc_call_count[BACKGROUND]); 629 if (__is_large_section(sbi)) { 630 seq_printf(s, " - data sections : %d (BG: %d)\n", 631 si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC], 632 si->gc_secs[DATA][BG_GC]); 633 seq_printf(s, " - node sections : %d (BG: %d)\n", 634 si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC], 635 si->gc_secs[NODE][BG_GC]); 636 } 637 seq_printf(s, " - data segments : %d (BG: %d)\n", 638 si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC], 639 si->gc_segs[DATA][BG_GC]); 640 seq_printf(s, " - node segments : %d (BG: %d)\n", 641 si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC], 642 si->gc_segs[NODE][BG_GC]); 643 seq_puts(s, " - Reclaimed segs :\n"); 644 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]); 645 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]); 646 seq_printf(s, " - Idle Greedy : %d\n", 647 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); 648 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]); 649 seq_printf(s, " - Urgent High : %d\n", 650 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]); 651 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]); 652 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]); 653 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, 654 si->bg_data_blks + si->bg_node_blks); 655 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, 656 si->bg_data_blks); 657 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, 658 si->bg_node_blks); 659 seq_printf(s, "BG skip : IO: %u, Other: %u\n", 660 si->io_skip_bggc, si->other_skip_bggc); 661 seq_puts(s, "\nExtent Cache (Read):\n"); 662 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", 663 si->hit_largest, si->hit_cached[EX_READ], 664 si->hit_rbtree[EX_READ]); 665 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 666 !si->total_ext[EX_READ] ? 0 : 667 div64_u64(si->hit_total[EX_READ] * 100, 668 si->total_ext[EX_READ]), 669 si->hit_total[EX_READ], si->total_ext[EX_READ]); 670 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 671 si->ext_tree[EX_READ], si->zombie_tree[EX_READ], 672 si->ext_node[EX_READ]); 673 seq_puts(s, "\nExtent Cache (Block Age):\n"); 674 seq_printf(s, " - Allocated Data Blocks: %llu\n", 675 si->allocated_data_blocks); 676 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n", 677 si->hit_cached[EX_BLOCK_AGE], 678 si->hit_rbtree[EX_BLOCK_AGE]); 679 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 680 !si->total_ext[EX_BLOCK_AGE] ? 0 : 681 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100, 682 si->total_ext[EX_BLOCK_AGE]), 683 si->hit_total[EX_BLOCK_AGE], 684 si->total_ext[EX_BLOCK_AGE]); 685 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 686 si->ext_tree[EX_BLOCK_AGE], 687 si->zombie_tree[EX_BLOCK_AGE], 688 si->ext_node[EX_BLOCK_AGE]); 689 seq_puts(s, "\nBalancing F2FS Async:\n"); 690 seq_printf(s, " - DIO (R: %4d, W: %4d)\n", 691 si->nr_dio_read, si->nr_dio_write); 692 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", 693 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); 694 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ", 695 si->nr_wb_cp_data, si->nr_wb_data, 696 si->nr_flushing, si->nr_flushed, 697 si->flush_list_empty); 698 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", 699 si->nr_discarding, si->nr_discarded, 700 si->nr_discard_cmd, si->undiscard_blks); 701 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n", 702 si->aw_cnt, si->max_aw_cnt); 703 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); 704 seq_printf(s, " - nodes: %4d in %4d\n", 705 si->ndirty_node, si->node_pages); 706 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", 707 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); 708 seq_printf(s, " - data: %4d in files:%4d\n", 709 si->ndirty_data, si->ndirty_files); 710 seq_printf(s, " - quota data: %4d in quota files:%4d\n", 711 si->ndirty_qdata, si->nquota_files); 712 seq_printf(s, " - meta: %4d in %4d\n", 713 si->ndirty_meta, si->meta_pages); 714 seq_printf(s, " - imeta: %4d\n", 715 si->ndirty_imeta); 716 seq_printf(s, " - fsync mark: %4lld\n", 717 percpu_counter_sum_positive( 718 &sbi->rf_node_block_count)); 719 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", 720 si->dirty_nats, si->nats, si->dirty_sits, si->sits); 721 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", 722 si->free_nids, si->avail_nids, si->alloc_nids); 723 seq_puts(s, "\nDistribution of User Blocks:"); 724 seq_puts(s, " [ valid | invalid | free ]\n"); 725 seq_puts(s, " ["); 726 727 for (j = 0; j < si->util_valid; j++) 728 seq_putc(s, '-'); 729 seq_putc(s, '|'); 730 731 for (j = 0; j < si->util_invalid; j++) 732 seq_putc(s, '-'); 733 seq_putc(s, '|'); 734 735 for (j = 0; j < si->util_free; j++) 736 seq_putc(s, '-'); 737 seq_puts(s, "]\n\n"); 738 seq_printf(s, "IPU: %u blocks\n", si->inplace_count); 739 seq_printf(s, "SSR: %u blocks in %u segments\n", 740 si->block_count[SSR], si->segment_count[SSR]); 741 seq_printf(s, "LFS: %u blocks in %u segments\n", 742 si->block_count[LFS], si->segment_count[LFS]); 743 744 /* segment usage info */ 745 f2fs_update_sit_info(sbi); 746 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", 747 si->bimodal, si->avg_vblocks); 748 749 /* memory footprint */ 750 update_mem_info(sbi); 751 seq_printf(s, "\nMemory: %llu KB\n", 752 (si->base_mem + si->cache_mem + si->page_mem) >> 10); 753 seq_printf(s, " - static: %llu KB\n", 754 si->base_mem >> 10); 755 seq_printf(s, " - cached all: %llu KB\n", 756 si->cache_mem >> 10); 757 seq_printf(s, " - read extent cache: %llu KB\n", 758 si->ext_mem[EX_READ] >> 10); 759 seq_printf(s, " - block age extent cache: %llu KB\n", 760 si->ext_mem[EX_BLOCK_AGE] >> 10); 761 seq_printf(s, " - paged : %llu KB\n", 762 si->page_mem >> 10); 763 } 764 spin_unlock(&f2fs_stat_lock); 765 return 0; 766} 767 768DEFINE_SHOW_ATTRIBUTE(stat); 769#endif 770 771int f2fs_build_stats(struct f2fs_sb_info *sbi) 772{ 773 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 774 struct f2fs_stat_info *si; 775 struct f2fs_dev_stats *dev_stats; 776 int i; 777 778 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); 779 if (!si) 780 return -ENOMEM; 781 782 dev_stats = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_stats) * 783 sbi->s_ndevs, GFP_KERNEL); 784 if (!dev_stats) { 785 kfree(si); 786 return -ENOMEM; 787 } 788 789 si->dev_stats = dev_stats; 790 791 si->all_area_segs = le32_to_cpu(raw_super->segment_count); 792 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); 793 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); 794 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); 795 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 796 si->main_area_sections = le32_to_cpu(raw_super->section_count); 797 si->main_area_zones = si->main_area_sections / 798 le32_to_cpu(raw_super->secs_per_zone); 799 si->sbi = sbi; 800 sbi->stat_info = si; 801 802 /* general extent cache stats */ 803 for (i = 0; i < NR_EXTENT_CACHES; i++) { 804 atomic64_set(&sbi->total_hit_ext[i], 0); 805 atomic64_set(&sbi->read_hit_rbtree[i], 0); 806 atomic64_set(&sbi->read_hit_cached[i], 0); 807 } 808 809 /* read extent_cache only */ 810 atomic64_set(&sbi->read_hit_largest, 0); 811 812 atomic_set(&sbi->inline_xattr, 0); 813 atomic_set(&sbi->inline_inode, 0); 814 atomic_set(&sbi->inline_dir, 0); 815 atomic_set(&sbi->compr_inode, 0); 816 atomic64_set(&sbi->compr_blocks, 0); 817 atomic_set(&sbi->swapfile_inode, 0); 818 atomic_set(&sbi->atomic_files, 0); 819 atomic_set(&sbi->inplace_count, 0); 820 for (i = META_CP; i < META_MAX; i++) 821 atomic_set(&sbi->meta_count[i], 0); 822 for (i = 0; i < MAX_CALL_TYPE; i++) 823 atomic_set(&sbi->cp_call_count[i], 0); 824 825 atomic_set(&sbi->max_aw_cnt, 0); 826 827 spin_lock(&f2fs_stat_lock); 828 list_add_tail(&si->stat_list, &f2fs_stat_list); 829 spin_unlock(&f2fs_stat_lock); 830 831 return 0; 832} 833 834void f2fs_destroy_stats(struct f2fs_sb_info *sbi) 835{ 836 struct f2fs_stat_info *si = F2FS_STAT(sbi); 837 838 spin_lock(&f2fs_stat_lock); 839 list_del(&si->stat_list); 840 spin_unlock(&f2fs_stat_lock); 841 842 kfree(si->dev_stats); 843 kfree(si); 844} 845 846void __init f2fs_create_root_stats(void) 847{ 848#ifdef CONFIG_DEBUG_FS 849 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); 850 851 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL, 852 &stat_fops); 853#endif 854} 855 856void f2fs_destroy_root_stats(void) 857{ 858#ifdef CONFIG_DEBUG_FS 859 debugfs_remove_recursive(f2fs_debugfs_root); 860 f2fs_debugfs_root = NULL; 861#endif 862}
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