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_RAW_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_general_status(struct f2fs_sb_info *sbi) 64{ 65 struct f2fs_stat_info *si = F2FS_STAT(sbi); 66 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 67 int i; 68 69 /* these will be changed if online resize is done */ 70 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 71 si->main_area_sections = le32_to_cpu(raw_super->section_count); 72 si->main_area_zones = si->main_area_sections / 73 le32_to_cpu(raw_super->secs_per_zone); 74 75 /* general extent cache stats */ 76 for (i = 0; i < NR_EXTENT_CACHES; i++) { 77 struct extent_tree_info *eti = &sbi->extent_tree[i]; 78 79 si->hit_cached[i] = atomic64_read(&sbi->read_hit_cached[i]); 80 si->hit_rbtree[i] = atomic64_read(&sbi->read_hit_rbtree[i]); 81 si->total_ext[i] = atomic64_read(&sbi->total_hit_ext[i]); 82 si->hit_total[i] = si->hit_cached[i] + si->hit_rbtree[i]; 83 si->ext_tree[i] = atomic_read(&eti->total_ext_tree); 84 si->zombie_tree[i] = atomic_read(&eti->total_zombie_tree); 85 si->ext_node[i] = atomic_read(&eti->total_ext_node); 86 } 87 /* read extent_cache only */ 88 si->hit_largest = atomic64_read(&sbi->read_hit_largest); 89 si->hit_total[EX_READ] += si->hit_largest; 90 91 /* block age extent_cache only */ 92 si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks); 93 94 /* validation check of the segment numbers */ 95 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); 96 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); 97 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); 98 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); 99 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA); 100 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); 101 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; 102 si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; 103 si->nquota_files = sbi->nquota_files; 104 si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; 105 si->aw_cnt = atomic_read(&sbi->atomic_files); 106 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); 107 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ); 108 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE); 109 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); 110 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); 111 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA); 112 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE); 113 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META); 114 if (SM_I(sbi)->fcc_info) { 115 si->nr_flushed = 116 atomic_read(&SM_I(sbi)->fcc_info->issued_flush); 117 si->nr_flushing = 118 atomic_read(&SM_I(sbi)->fcc_info->queued_flush); 119 si->flush_list_empty = 120 llist_empty(&SM_I(sbi)->fcc_info->issue_list); 121 } 122 if (SM_I(sbi)->dcc_info) { 123 si->nr_discarded = 124 atomic_read(&SM_I(sbi)->dcc_info->issued_discard); 125 si->nr_discarding = 126 atomic_read(&SM_I(sbi)->dcc_info->queued_discard); 127 si->nr_discard_cmd = 128 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 129 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks; 130 } 131 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt); 132 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt); 133 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt); 134 spin_lock(&sbi->cprc_info.stat_lock); 135 si->cur_ckpt_time = sbi->cprc_info.cur_time; 136 si->peak_ckpt_time = sbi->cprc_info.peak_time; 137 spin_unlock(&sbi->cprc_info.stat_lock); 138 si->total_count = BLKS_TO_SEGS(sbi, (int)sbi->user_block_count); 139 si->rsvd_segs = reserved_segments(sbi); 140 si->overp_segs = overprovision_segments(sbi); 141 si->valid_count = valid_user_blocks(sbi); 142 si->discard_blks = discard_blocks(sbi); 143 si->valid_node_count = valid_node_count(sbi); 144 si->valid_inode_count = valid_inode_count(sbi); 145 si->inline_xattr = atomic_read(&sbi->inline_xattr); 146 si->inline_inode = atomic_read(&sbi->inline_inode); 147 si->inline_dir = atomic_read(&sbi->inline_dir); 148 si->compr_inode = atomic_read(&sbi->compr_inode); 149 si->swapfile_inode = atomic_read(&sbi->swapfile_inode); 150 si->compr_blocks = atomic64_read(&sbi->compr_blocks); 151 si->append = sbi->im[APPEND_INO].ino_num; 152 si->update = sbi->im[UPDATE_INO].ino_num; 153 si->orphans = sbi->im[ORPHAN_INO].ino_num; 154 si->utilization = utilization(sbi); 155 156 si->free_segs = free_segments(sbi); 157 si->free_secs = free_sections(sbi); 158 si->prefree_count = prefree_segments(sbi); 159 si->dirty_count = dirty_segments(sbi); 160 if (sbi->node_inode) 161 si->node_pages = NODE_MAPPING(sbi)->nrpages; 162 if (sbi->meta_inode) 163 si->meta_pages = META_MAPPING(sbi)->nrpages; 164#ifdef CONFIG_F2FS_FS_COMPRESSION 165 if (sbi->compress_inode) { 166 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages; 167 si->compress_page_hit = atomic_read(&sbi->compress_page_hit); 168 } 169#endif 170 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT]; 171 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT]; 172 si->sits = MAIN_SEGS(sbi); 173 si->dirty_sits = SIT_I(sbi)->dirty_sentries; 174 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID]; 175 si->avail_nids = NM_I(sbi)->available_nids; 176 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID]; 177 si->io_skip_bggc = sbi->io_skip_bggc; 178 si->other_skip_bggc = sbi->other_skip_bggc; 179 si->util_free = (int)(BLKS_TO_SEGS(sbi, free_user_blocks(sbi))) 180 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 181 / 2; 182 si->util_valid = (int)(BLKS_TO_SEGS(sbi, written_block_count(sbi))) 183 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 184 / 2; 185 si->util_invalid = 50 - si->util_free - si->util_valid; 186 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) { 187 struct curseg_info *curseg = CURSEG_I(sbi, i); 188 189 si->curseg[i] = curseg->segno; 190 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); 191 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); 192 } 193 194 for (i = META_CP; i < META_MAX; i++) 195 si->meta_count[i] = atomic_read(&sbi->meta_count[i]); 196 197 for (i = 0; i < NO_CHECK_TYPE; i++) { 198 si->dirty_seg[i] = 0; 199 si->full_seg[i] = 0; 200 si->valid_blks[i] = 0; 201 } 202 203 for (i = 0; i < MAIN_SEGS(sbi); i++) { 204 int blks = get_seg_entry(sbi, i)->valid_blocks; 205 int type = get_seg_entry(sbi, i)->type; 206 207 if (!blks) 208 continue; 209 210 if (blks == BLKS_PER_SEG(sbi)) 211 si->full_seg[type]++; 212 else 213 si->dirty_seg[type]++; 214 si->valid_blks[type] += blks; 215 } 216 217 for (i = 0; i < MAX_CALL_TYPE; i++) 218 si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]); 219 220 for (i = 0; i < 2; i++) { 221 si->segment_count[i] = sbi->segment_count[i]; 222 si->block_count[i] = sbi->block_count[i]; 223 } 224 225 si->inplace_count = atomic_read(&sbi->inplace_count); 226} 227 228/* 229 * This function calculates memory footprint. 230 */ 231static void update_mem_info(struct f2fs_sb_info *sbi) 232{ 233 struct f2fs_stat_info *si = F2FS_STAT(sbi); 234 int i; 235 236 if (si->base_mem) 237 goto get_cache; 238 239 /* build stat */ 240 si->base_mem = sizeof(struct f2fs_stat_info); 241 242 /* build superblock */ 243 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; 244 si->base_mem += 2 * sizeof(struct f2fs_inode_info); 245 si->base_mem += sizeof(*sbi->ckpt); 246 247 /* build sm */ 248 si->base_mem += sizeof(struct f2fs_sm_info); 249 250 /* build sit */ 251 si->base_mem += sizeof(struct sit_info); 252 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); 253 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 254 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 255 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 256 si->base_mem += SIT_VBLOCK_MAP_SIZE; 257 if (__is_large_section(sbi)) 258 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); 259 si->base_mem += __bitmap_size(sbi, SIT_BITMAP); 260 261 /* build free segmap */ 262 si->base_mem += sizeof(struct free_segmap_info); 263 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 264 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 265 266 /* build curseg */ 267 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; 268 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; 269 270 /* build dirty segmap */ 271 si->base_mem += sizeof(struct dirty_seglist_info); 272 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); 273 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 274 275 /* build nm */ 276 si->base_mem += sizeof(struct f2fs_nm_info); 277 si->base_mem += __bitmap_size(sbi, NAT_BITMAP); 278 si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS); 279 si->base_mem += NM_I(sbi)->nat_blocks * 280 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); 281 si->base_mem += NM_I(sbi)->nat_blocks / 8; 282 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); 283 284get_cache: 285 si->cache_mem = 0; 286 287 /* build gc */ 288 if (sbi->gc_thread) 289 si->cache_mem += sizeof(struct f2fs_gc_kthread); 290 291 /* build merge flush thread */ 292 if (SM_I(sbi)->fcc_info) 293 si->cache_mem += sizeof(struct flush_cmd_control); 294 if (SM_I(sbi)->dcc_info) { 295 si->cache_mem += sizeof(struct discard_cmd_control); 296 si->cache_mem += sizeof(struct discard_cmd) * 297 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 298 } 299 300 /* free nids */ 301 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + 302 NM_I(sbi)->nid_cnt[PREALLOC_NID]) * 303 sizeof(struct free_nid); 304 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] * 305 sizeof(struct nat_entry); 306 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] * 307 sizeof(struct nat_entry_set); 308 for (i = 0; i < MAX_INO_ENTRY; i++) 309 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); 310 311 for (i = 0; i < NR_EXTENT_CACHES; i++) { 312 struct extent_tree_info *eti = &sbi->extent_tree[i]; 313 314 si->ext_mem[i] = atomic_read(&eti->total_ext_tree) * 315 sizeof(struct extent_tree); 316 si->ext_mem[i] += atomic_read(&eti->total_ext_node) * 317 sizeof(struct extent_node); 318 si->cache_mem += si->ext_mem[i]; 319 } 320 321 si->page_mem = 0; 322 if (sbi->node_inode) { 323 unsigned long npages = NODE_MAPPING(sbi)->nrpages; 324 325 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 326 } 327 if (sbi->meta_inode) { 328 unsigned long npages = META_MAPPING(sbi)->nrpages; 329 330 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 331 } 332#ifdef CONFIG_F2FS_FS_COMPRESSION 333 if (sbi->compress_inode) { 334 unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages; 335 336 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 337 } 338#endif 339} 340 341static const char *s_flag[MAX_SBI_FLAG] = { 342 [SBI_IS_DIRTY] = "fs_dirty", 343 [SBI_IS_CLOSE] = "closing", 344 [SBI_NEED_FSCK] = "need_fsck", 345 [SBI_POR_DOING] = "recovering", 346 [SBI_NEED_SB_WRITE] = "sb_dirty", 347 [SBI_NEED_CP] = "need_cp", 348 [SBI_IS_SHUTDOWN] = "shutdown", 349 [SBI_IS_RECOVERED] = "recovered", 350 [SBI_CP_DISABLED] = "cp_disabled", 351 [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick", 352 [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush", 353 [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush", 354 [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair", 355 [SBI_IS_RESIZEFS] = "resizefs", 356 [SBI_IS_FREEZING] = "freezefs", 357 [SBI_IS_WRITABLE] = "writable", 358}; 359 360static const char *ipu_mode_names[F2FS_IPU_MAX] = { 361 [F2FS_IPU_FORCE] = "FORCE", 362 [F2FS_IPU_SSR] = "SSR", 363 [F2FS_IPU_UTIL] = "UTIL", 364 [F2FS_IPU_SSR_UTIL] = "SSR_UTIL", 365 [F2FS_IPU_FSYNC] = "FSYNC", 366 [F2FS_IPU_ASYNC] = "ASYNC", 367 [F2FS_IPU_NOCACHE] = "NOCACHE", 368 [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE", 369}; 370 371static int stat_show(struct seq_file *s, void *v) 372{ 373 struct f2fs_stat_info *si; 374 int i = 0, j = 0; 375 unsigned long flags; 376 377 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 378 list_for_each_entry(si, &f2fs_stat_list, stat_list) { 379 struct f2fs_sb_info *sbi = si->sbi; 380 381 update_general_status(sbi); 382 383 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", 384 sbi->sb->s_bdev, i++, 385 f2fs_readonly(sbi->sb) ? "RO" : "RW", 386 is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ? 387 "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good")); 388 if (sbi->s_flag) { 389 seq_puts(s, "[SBI:"); 390 for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG) 391 seq_printf(s, " %s", s_flag[j]); 392 seq_puts(s, "]\n"); 393 } 394 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", 395 si->sit_area_segs, si->nat_area_segs); 396 seq_printf(s, "[SSA: %d] [MAIN: %d", 397 si->ssa_area_segs, si->main_area_segs); 398 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", 399 si->overp_segs, si->rsvd_segs); 400 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", 401 ktime_get_boottime_seconds(), 402 SIT_I(sbi)->mounted_time); 403 404 seq_puts(s, "Policy:\n"); 405 seq_puts(s, " - IPU: ["); 406 if (IS_F2FS_IPU_DISABLE(sbi)) { 407 seq_puts(s, " DISABLE"); 408 } else { 409 unsigned long policy = SM_I(sbi)->ipu_policy; 410 411 for_each_set_bit(j, &policy, F2FS_IPU_MAX) 412 seq_printf(s, " %s", ipu_mode_names[j]); 413 } 414 seq_puts(s, " ]\n\n"); 415 416 if (test_opt(sbi, DISCARD)) 417 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", 418 si->utilization, si->valid_count, si->discard_blks); 419 else 420 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", 421 si->utilization, si->valid_count); 422 423 seq_printf(s, " - Node: %u (Inode: %u, ", 424 si->valid_node_count, si->valid_inode_count); 425 seq_printf(s, "Other: %u)\n - Data: %u\n", 426 si->valid_node_count - si->valid_inode_count, 427 si->valid_count - si->valid_node_count); 428 seq_printf(s, " - Inline_xattr Inode: %u\n", 429 si->inline_xattr); 430 seq_printf(s, " - Inline_data Inode: %u\n", 431 si->inline_inode); 432 seq_printf(s, " - Inline_dentry Inode: %u\n", 433 si->inline_dir); 434 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n", 435 si->compr_inode, si->compr_blocks); 436 seq_printf(s, " - Swapfile Inode: %u\n", 437 si->swapfile_inode); 438 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", 439 si->orphans, si->append, si->update); 440 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", 441 si->main_area_segs, si->main_area_sections, 442 si->main_area_zones); 443 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n", 444 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); 445 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n", 446 si->curseg[CURSEG_COLD_DATA], 447 si->cursec[CURSEG_COLD_DATA], 448 si->curzone[CURSEG_COLD_DATA], 449 si->dirty_seg[CURSEG_COLD_DATA], 450 si->full_seg[CURSEG_COLD_DATA], 451 si->valid_blks[CURSEG_COLD_DATA]); 452 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n", 453 si->curseg[CURSEG_WARM_DATA], 454 si->cursec[CURSEG_WARM_DATA], 455 si->curzone[CURSEG_WARM_DATA], 456 si->dirty_seg[CURSEG_WARM_DATA], 457 si->full_seg[CURSEG_WARM_DATA], 458 si->valid_blks[CURSEG_WARM_DATA]); 459 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n", 460 si->curseg[CURSEG_HOT_DATA], 461 si->cursec[CURSEG_HOT_DATA], 462 si->curzone[CURSEG_HOT_DATA], 463 si->dirty_seg[CURSEG_HOT_DATA], 464 si->full_seg[CURSEG_HOT_DATA], 465 si->valid_blks[CURSEG_HOT_DATA]); 466 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n", 467 si->curseg[CURSEG_HOT_NODE], 468 si->cursec[CURSEG_HOT_NODE], 469 si->curzone[CURSEG_HOT_NODE], 470 si->dirty_seg[CURSEG_HOT_NODE], 471 si->full_seg[CURSEG_HOT_NODE], 472 si->valid_blks[CURSEG_HOT_NODE]); 473 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n", 474 si->curseg[CURSEG_WARM_NODE], 475 si->cursec[CURSEG_WARM_NODE], 476 si->curzone[CURSEG_WARM_NODE], 477 si->dirty_seg[CURSEG_WARM_NODE], 478 si->full_seg[CURSEG_WARM_NODE], 479 si->valid_blks[CURSEG_WARM_NODE]); 480 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n", 481 si->curseg[CURSEG_COLD_NODE], 482 si->cursec[CURSEG_COLD_NODE], 483 si->curzone[CURSEG_COLD_NODE], 484 si->dirty_seg[CURSEG_COLD_NODE], 485 si->full_seg[CURSEG_COLD_NODE], 486 si->valid_blks[CURSEG_COLD_NODE]); 487 seq_printf(s, " - Pinned file: %8d %8d %8d\n", 488 si->curseg[CURSEG_COLD_DATA_PINNED], 489 si->cursec[CURSEG_COLD_DATA_PINNED], 490 si->curzone[CURSEG_COLD_DATA_PINNED]); 491 seq_printf(s, " - ATGC data: %8d %8d %8d\n", 492 si->curseg[CURSEG_ALL_DATA_ATGC], 493 si->cursec[CURSEG_ALL_DATA_ATGC], 494 si->curzone[CURSEG_ALL_DATA_ATGC]); 495 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", 496 si->main_area_segs - si->dirty_count - 497 si->prefree_count - si->free_segs, 498 si->dirty_count); 499 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", 500 si->prefree_count, si->free_segs, si->free_secs); 501 seq_printf(s, "CP calls: %d (BG: %d)\n", 502 si->cp_call_count[TOTAL_CALL], 503 si->cp_call_count[BACKGROUND]); 504 seq_printf(s, "CP count: %d\n", si->cp_count); 505 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]); 506 seq_printf(s, " - sit blocks : %u\n", 507 si->meta_count[META_SIT]); 508 seq_printf(s, " - nat blocks : %u\n", 509 si->meta_count[META_NAT]); 510 seq_printf(s, " - ssa blocks : %u\n", 511 si->meta_count[META_SSA]); 512 seq_puts(s, "CP merge:\n"); 513 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt); 514 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt); 515 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt); 516 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time); 517 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time); 518 seq_printf(s, "GC calls: %d (gc_thread: %d)\n", 519 si->gc_call_count[BACKGROUND] + 520 si->gc_call_count[FOREGROUND], 521 si->gc_call_count[BACKGROUND]); 522 if (__is_large_section(sbi)) { 523 seq_printf(s, " - data sections : %d (BG: %d)\n", 524 si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC], 525 si->gc_secs[DATA][BG_GC]); 526 seq_printf(s, " - node sections : %d (BG: %d)\n", 527 si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC], 528 si->gc_secs[NODE][BG_GC]); 529 } 530 seq_printf(s, " - data segments : %d (BG: %d)\n", 531 si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC], 532 si->gc_segs[DATA][BG_GC]); 533 seq_printf(s, " - node segments : %d (BG: %d)\n", 534 si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC], 535 si->gc_segs[NODE][BG_GC]); 536 seq_puts(s, " - Reclaimed segs :\n"); 537 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]); 538 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]); 539 seq_printf(s, " - Idle Greedy : %d\n", 540 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); 541 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]); 542 seq_printf(s, " - Urgent High : %d\n", 543 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]); 544 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]); 545 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]); 546 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, 547 si->bg_data_blks + si->bg_node_blks); 548 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, 549 si->bg_data_blks); 550 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, 551 si->bg_node_blks); 552 seq_printf(s, "BG skip : IO: %u, Other: %u\n", 553 si->io_skip_bggc, si->other_skip_bggc); 554 seq_puts(s, "\nExtent Cache (Read):\n"); 555 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", 556 si->hit_largest, si->hit_cached[EX_READ], 557 si->hit_rbtree[EX_READ]); 558 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 559 !si->total_ext[EX_READ] ? 0 : 560 div64_u64(si->hit_total[EX_READ] * 100, 561 si->total_ext[EX_READ]), 562 si->hit_total[EX_READ], si->total_ext[EX_READ]); 563 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 564 si->ext_tree[EX_READ], si->zombie_tree[EX_READ], 565 si->ext_node[EX_READ]); 566 seq_puts(s, "\nExtent Cache (Block Age):\n"); 567 seq_printf(s, " - Allocated Data Blocks: %llu\n", 568 si->allocated_data_blocks); 569 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n", 570 si->hit_cached[EX_BLOCK_AGE], 571 si->hit_rbtree[EX_BLOCK_AGE]); 572 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 573 !si->total_ext[EX_BLOCK_AGE] ? 0 : 574 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100, 575 si->total_ext[EX_BLOCK_AGE]), 576 si->hit_total[EX_BLOCK_AGE], 577 si->total_ext[EX_BLOCK_AGE]); 578 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 579 si->ext_tree[EX_BLOCK_AGE], 580 si->zombie_tree[EX_BLOCK_AGE], 581 si->ext_node[EX_BLOCK_AGE]); 582 seq_puts(s, "\nBalancing F2FS Async:\n"); 583 seq_printf(s, " - DIO (R: %4d, W: %4d)\n", 584 si->nr_dio_read, si->nr_dio_write); 585 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", 586 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); 587 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ", 588 si->nr_wb_cp_data, si->nr_wb_data, 589 si->nr_flushing, si->nr_flushed, 590 si->flush_list_empty); 591 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", 592 si->nr_discarding, si->nr_discarded, 593 si->nr_discard_cmd, si->undiscard_blks); 594 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n", 595 si->aw_cnt, si->max_aw_cnt); 596 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); 597 seq_printf(s, " - nodes: %4d in %4d\n", 598 si->ndirty_node, si->node_pages); 599 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", 600 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); 601 seq_printf(s, " - datas: %4d in files:%4d\n", 602 si->ndirty_data, si->ndirty_files); 603 seq_printf(s, " - quota datas: %4d in quota files:%4d\n", 604 si->ndirty_qdata, si->nquota_files); 605 seq_printf(s, " - meta: %4d in %4d\n", 606 si->ndirty_meta, si->meta_pages); 607 seq_printf(s, " - imeta: %4d\n", 608 si->ndirty_imeta); 609 seq_printf(s, " - fsync mark: %4lld\n", 610 percpu_counter_sum_positive( 611 &sbi->rf_node_block_count)); 612 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", 613 si->dirty_nats, si->nats, si->dirty_sits, si->sits); 614 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", 615 si->free_nids, si->avail_nids, si->alloc_nids); 616 seq_puts(s, "\nDistribution of User Blocks:"); 617 seq_puts(s, " [ valid | invalid | free ]\n"); 618 seq_puts(s, " ["); 619 620 for (j = 0; j < si->util_valid; j++) 621 seq_putc(s, '-'); 622 seq_putc(s, '|'); 623 624 for (j = 0; j < si->util_invalid; j++) 625 seq_putc(s, '-'); 626 seq_putc(s, '|'); 627 628 for (j = 0; j < si->util_free; j++) 629 seq_putc(s, '-'); 630 seq_puts(s, "]\n\n"); 631 seq_printf(s, "IPU: %u blocks\n", si->inplace_count); 632 seq_printf(s, "SSR: %u blocks in %u segments\n", 633 si->block_count[SSR], si->segment_count[SSR]); 634 seq_printf(s, "LFS: %u blocks in %u segments\n", 635 si->block_count[LFS], si->segment_count[LFS]); 636 637 /* segment usage info */ 638 f2fs_update_sit_info(sbi); 639 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", 640 si->bimodal, si->avg_vblocks); 641 642 /* memory footprint */ 643 update_mem_info(sbi); 644 seq_printf(s, "\nMemory: %llu KB\n", 645 (si->base_mem + si->cache_mem + si->page_mem) >> 10); 646 seq_printf(s, " - static: %llu KB\n", 647 si->base_mem >> 10); 648 seq_printf(s, " - cached all: %llu KB\n", 649 si->cache_mem >> 10); 650 seq_printf(s, " - read extent cache: %llu KB\n", 651 si->ext_mem[EX_READ] >> 10); 652 seq_printf(s, " - block age extent cache: %llu KB\n", 653 si->ext_mem[EX_BLOCK_AGE] >> 10); 654 seq_printf(s, " - paged : %llu KB\n", 655 si->page_mem >> 10); 656 } 657 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 658 return 0; 659} 660 661DEFINE_SHOW_ATTRIBUTE(stat); 662#endif 663 664int f2fs_build_stats(struct f2fs_sb_info *sbi) 665{ 666 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 667 struct f2fs_stat_info *si; 668 unsigned long flags; 669 int i; 670 671 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); 672 if (!si) 673 return -ENOMEM; 674 675 si->all_area_segs = le32_to_cpu(raw_super->segment_count); 676 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); 677 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); 678 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); 679 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 680 si->main_area_sections = le32_to_cpu(raw_super->section_count); 681 si->main_area_zones = si->main_area_sections / 682 le32_to_cpu(raw_super->secs_per_zone); 683 si->sbi = sbi; 684 sbi->stat_info = si; 685 686 /* general extent cache stats */ 687 for (i = 0; i < NR_EXTENT_CACHES; i++) { 688 atomic64_set(&sbi->total_hit_ext[i], 0); 689 atomic64_set(&sbi->read_hit_rbtree[i], 0); 690 atomic64_set(&sbi->read_hit_cached[i], 0); 691 } 692 693 /* read extent_cache only */ 694 atomic64_set(&sbi->read_hit_largest, 0); 695 696 atomic_set(&sbi->inline_xattr, 0); 697 atomic_set(&sbi->inline_inode, 0); 698 atomic_set(&sbi->inline_dir, 0); 699 atomic_set(&sbi->compr_inode, 0); 700 atomic64_set(&sbi->compr_blocks, 0); 701 atomic_set(&sbi->swapfile_inode, 0); 702 atomic_set(&sbi->atomic_files, 0); 703 atomic_set(&sbi->inplace_count, 0); 704 for (i = META_CP; i < META_MAX; i++) 705 atomic_set(&sbi->meta_count[i], 0); 706 for (i = 0; i < MAX_CALL_TYPE; i++) 707 atomic_set(&sbi->cp_call_count[i], 0); 708 709 atomic_set(&sbi->max_aw_cnt, 0); 710 711 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 712 list_add_tail(&si->stat_list, &f2fs_stat_list); 713 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 714 715 return 0; 716} 717 718void f2fs_destroy_stats(struct f2fs_sb_info *sbi) 719{ 720 struct f2fs_stat_info *si = F2FS_STAT(sbi); 721 unsigned long flags; 722 723 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 724 list_del(&si->stat_list); 725 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 726 727 kfree(si); 728} 729 730void __init f2fs_create_root_stats(void) 731{ 732#ifdef CONFIG_DEBUG_FS 733 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); 734 735 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL, 736 &stat_fops); 737#endif 738} 739 740void f2fs_destroy_root_stats(void) 741{ 742#ifdef CONFIG_DEBUG_FS 743 debugfs_remove_recursive(f2fs_debugfs_root); 744 f2fs_debugfs_root = NULL; 745#endif 746} 747