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 += sbi->segs_per_sec) { 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_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 /* validation check of the segment numbers */ 76 si->hit_largest = atomic64_read(&sbi->read_hit_largest); 77 si->hit_cached = atomic64_read(&sbi->read_hit_cached); 78 si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree); 79 si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree; 80 si->total_ext = atomic64_read(&sbi->total_hit_ext); 81 si->ext_tree = atomic_read(&sbi->total_ext_tree); 82 si->zombie_tree = atomic_read(&sbi->total_zombie_tree); 83 si->ext_node = atomic_read(&sbi->total_ext_node); 84 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); 85 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); 86 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); 87 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); 88 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA); 89 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); 90 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; 91 si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; 92 si->nquota_files = sbi->nquota_files; 93 si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; 94 si->aw_cnt = atomic_read(&sbi->atomic_files); 95 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); 96 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ); 97 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE); 98 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); 99 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); 100 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA); 101 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE); 102 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META); 103 if (SM_I(sbi)->fcc_info) { 104 si->nr_flushed = 105 atomic_read(&SM_I(sbi)->fcc_info->issued_flush); 106 si->nr_flushing = 107 atomic_read(&SM_I(sbi)->fcc_info->queued_flush); 108 si->flush_list_empty = 109 llist_empty(&SM_I(sbi)->fcc_info->issue_list); 110 } 111 if (SM_I(sbi)->dcc_info) { 112 si->nr_discarded = 113 atomic_read(&SM_I(sbi)->dcc_info->issued_discard); 114 si->nr_discarding = 115 atomic_read(&SM_I(sbi)->dcc_info->queued_discard); 116 si->nr_discard_cmd = 117 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 118 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks; 119 } 120 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt); 121 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt); 122 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt); 123 spin_lock(&sbi->cprc_info.stat_lock); 124 si->cur_ckpt_time = sbi->cprc_info.cur_time; 125 si->peak_ckpt_time = sbi->cprc_info.peak_time; 126 spin_unlock(&sbi->cprc_info.stat_lock); 127 si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; 128 si->rsvd_segs = reserved_segments(sbi); 129 si->overp_segs = overprovision_segments(sbi); 130 si->valid_count = valid_user_blocks(sbi); 131 si->discard_blks = discard_blocks(sbi); 132 si->valid_node_count = valid_node_count(sbi); 133 si->valid_inode_count = valid_inode_count(sbi); 134 si->inline_xattr = atomic_read(&sbi->inline_xattr); 135 si->inline_inode = atomic_read(&sbi->inline_inode); 136 si->inline_dir = atomic_read(&sbi->inline_dir); 137 si->compr_inode = atomic_read(&sbi->compr_inode); 138 si->swapfile_inode = atomic_read(&sbi->swapfile_inode); 139 si->compr_blocks = atomic64_read(&sbi->compr_blocks); 140 si->append = sbi->im[APPEND_INO].ino_num; 141 si->update = sbi->im[UPDATE_INO].ino_num; 142 si->orphans = sbi->im[ORPHAN_INO].ino_num; 143 si->utilization = utilization(sbi); 144 145 si->free_segs = free_segments(sbi); 146 si->free_secs = free_sections(sbi); 147 si->prefree_count = prefree_segments(sbi); 148 si->dirty_count = dirty_segments(sbi); 149 if (sbi->node_inode) 150 si->node_pages = NODE_MAPPING(sbi)->nrpages; 151 if (sbi->meta_inode) 152 si->meta_pages = META_MAPPING(sbi)->nrpages; 153 #ifdef CONFIG_F2FS_FS_COMPRESSION 154 if (sbi->compress_inode) { 155 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages; 156 si->compress_page_hit = atomic_read(&sbi->compress_page_hit); 157 } 158 #endif 159 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT]; 160 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT]; 161 si->sits = MAIN_SEGS(sbi); 162 si->dirty_sits = SIT_I(sbi)->dirty_sentries; 163 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID]; 164 si->avail_nids = NM_I(sbi)->available_nids; 165 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID]; 166 si->io_skip_bggc = sbi->io_skip_bggc; 167 si->other_skip_bggc = sbi->other_skip_bggc; 168 si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg) 169 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 170 / 2; 171 si->util_valid = (int)(written_block_count(sbi) >> 172 sbi->log_blocks_per_seg) 173 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) 174 / 2; 175 si->util_invalid = 50 - si->util_free - si->util_valid; 176 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) { 177 struct curseg_info *curseg = CURSEG_I(sbi, i); 178 179 si->curseg[i] = curseg->segno; 180 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); 181 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); 182 } 183 184 for (i = META_CP; i < META_MAX; i++) 185 si->meta_count[i] = atomic_read(&sbi->meta_count[i]); 186 187 for (i = 0; i < NO_CHECK_TYPE; i++) { 188 si->dirty_seg[i] = 0; 189 si->full_seg[i] = 0; 190 si->valid_blks[i] = 0; 191 } 192 193 for (i = 0; i < MAIN_SEGS(sbi); i++) { 194 int blks = get_seg_entry(sbi, i)->valid_blocks; 195 int type = get_seg_entry(sbi, i)->type; 196 197 if (!blks) 198 continue; 199 200 if (blks == sbi->blocks_per_seg) 201 si->full_seg[type]++; 202 else 203 si->dirty_seg[type]++; 204 si->valid_blks[type] += blks; 205 } 206 207 for (i = 0; i < 2; i++) { 208 si->segment_count[i] = sbi->segment_count[i]; 209 si->block_count[i] = sbi->block_count[i]; 210 } 211 212 si->inplace_count = atomic_read(&sbi->inplace_count); 213 } 214 215 /* 216 * This function calculates memory footprint. 217 */ 218 static void update_mem_info(struct f2fs_sb_info *sbi) 219 { 220 struct f2fs_stat_info *si = F2FS_STAT(sbi); 221 int i; 222 223 if (si->base_mem) 224 goto get_cache; 225 226 /* build stat */ 227 si->base_mem = sizeof(struct f2fs_stat_info); 228 229 /* build superblock */ 230 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; 231 si->base_mem += 2 * sizeof(struct f2fs_inode_info); 232 si->base_mem += sizeof(*sbi->ckpt); 233 234 /* build sm */ 235 si->base_mem += sizeof(struct f2fs_sm_info); 236 237 /* build sit */ 238 si->base_mem += sizeof(struct sit_info); 239 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); 240 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 241 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 242 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); 243 si->base_mem += SIT_VBLOCK_MAP_SIZE; 244 if (__is_large_section(sbi)) 245 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); 246 si->base_mem += __bitmap_size(sbi, SIT_BITMAP); 247 248 /* build free segmap */ 249 si->base_mem += sizeof(struct free_segmap_info); 250 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); 251 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 252 253 /* build curseg */ 254 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; 255 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; 256 257 /* build dirty segmap */ 258 si->base_mem += sizeof(struct dirty_seglist_info); 259 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); 260 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); 261 262 /* build nm */ 263 si->base_mem += sizeof(struct f2fs_nm_info); 264 si->base_mem += __bitmap_size(sbi, NAT_BITMAP); 265 si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS); 266 si->base_mem += NM_I(sbi)->nat_blocks * 267 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); 268 si->base_mem += NM_I(sbi)->nat_blocks / 8; 269 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); 270 271 get_cache: 272 si->cache_mem = 0; 273 274 /* build gc */ 275 if (sbi->gc_thread) 276 si->cache_mem += sizeof(struct f2fs_gc_kthread); 277 278 /* build merge flush thread */ 279 if (SM_I(sbi)->fcc_info) 280 si->cache_mem += sizeof(struct flush_cmd_control); 281 if (SM_I(sbi)->dcc_info) { 282 si->cache_mem += sizeof(struct discard_cmd_control); 283 si->cache_mem += sizeof(struct discard_cmd) * 284 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); 285 } 286 287 /* free nids */ 288 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + 289 NM_I(sbi)->nid_cnt[PREALLOC_NID]) * 290 sizeof(struct free_nid); 291 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] * 292 sizeof(struct nat_entry); 293 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] * 294 sizeof(struct nat_entry_set); 295 for (i = 0; i < MAX_INO_ENTRY; i++) 296 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); 297 si->cache_mem += atomic_read(&sbi->total_ext_tree) * 298 sizeof(struct extent_tree); 299 si->cache_mem += atomic_read(&sbi->total_ext_node) * 300 sizeof(struct extent_node); 301 302 si->page_mem = 0; 303 if (sbi->node_inode) { 304 unsigned npages = NODE_MAPPING(sbi)->nrpages; 305 306 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 307 } 308 if (sbi->meta_inode) { 309 unsigned npages = META_MAPPING(sbi)->nrpages; 310 311 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 312 } 313 #ifdef CONFIG_F2FS_FS_COMPRESSION 314 if (sbi->compress_inode) { 315 unsigned npages = COMPRESS_MAPPING(sbi)->nrpages; 316 si->page_mem += (unsigned long long)npages << PAGE_SHIFT; 317 } 318 #endif 319 } 320 321 static char *s_flag[] = { 322 [SBI_IS_DIRTY] = " fs_dirty", 323 [SBI_IS_CLOSE] = " closing", 324 [SBI_NEED_FSCK] = " need_fsck", 325 [SBI_POR_DOING] = " recovering", 326 [SBI_NEED_SB_WRITE] = " sb_dirty", 327 [SBI_NEED_CP] = " need_cp", 328 [SBI_IS_SHUTDOWN] = " shutdown", 329 [SBI_IS_RECOVERED] = " recovered", 330 [SBI_CP_DISABLED] = " cp_disabled", 331 [SBI_CP_DISABLED_QUICK] = " cp_disabled_quick", 332 [SBI_QUOTA_NEED_FLUSH] = " quota_need_flush", 333 [SBI_QUOTA_SKIP_FLUSH] = " quota_skip_flush", 334 [SBI_QUOTA_NEED_REPAIR] = " quota_need_repair", 335 [SBI_IS_RESIZEFS] = " resizefs", 336 [SBI_IS_FREEZING] = " freezefs", 337 }; 338 339 static int stat_show(struct seq_file *s, void *v) 340 { 341 struct f2fs_stat_info *si; 342 int i = 0, j = 0; 343 unsigned long flags; 344 345 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 346 list_for_each_entry(si, &f2fs_stat_list, stat_list) { 347 update_general_status(si->sbi); 348 349 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", 350 si->sbi->sb->s_bdev, i++, 351 f2fs_readonly(si->sbi->sb) ? "RO" : "RW", 352 is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ? 353 "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good")); 354 if (si->sbi->s_flag) { 355 seq_puts(s, "[SBI:"); 356 for_each_set_bit(j, &si->sbi->s_flag, 32) 357 seq_puts(s, s_flag[j]); 358 seq_puts(s, "]\n"); 359 } 360 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", 361 si->sit_area_segs, si->nat_area_segs); 362 seq_printf(s, "[SSA: %d] [MAIN: %d", 363 si->ssa_area_segs, si->main_area_segs); 364 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", 365 si->overp_segs, si->rsvd_segs); 366 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", 367 ktime_get_boottime_seconds(), 368 SIT_I(si->sbi)->mounted_time); 369 if (test_opt(si->sbi, DISCARD)) 370 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", 371 si->utilization, si->valid_count, si->discard_blks); 372 else 373 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", 374 si->utilization, si->valid_count); 375 376 seq_printf(s, " - Node: %u (Inode: %u, ", 377 si->valid_node_count, si->valid_inode_count); 378 seq_printf(s, "Other: %u)\n - Data: %u\n", 379 si->valid_node_count - si->valid_inode_count, 380 si->valid_count - si->valid_node_count); 381 seq_printf(s, " - Inline_xattr Inode: %u\n", 382 si->inline_xattr); 383 seq_printf(s, " - Inline_data Inode: %u\n", 384 si->inline_inode); 385 seq_printf(s, " - Inline_dentry Inode: %u\n", 386 si->inline_dir); 387 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n", 388 si->compr_inode, si->compr_blocks); 389 seq_printf(s, " - Swapfile Inode: %u\n", 390 si->swapfile_inode); 391 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", 392 si->orphans, si->append, si->update); 393 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", 394 si->main_area_segs, si->main_area_sections, 395 si->main_area_zones); 396 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n", 397 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk"); 398 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n", 399 si->curseg[CURSEG_COLD_DATA], 400 si->cursec[CURSEG_COLD_DATA], 401 si->curzone[CURSEG_COLD_DATA], 402 si->dirty_seg[CURSEG_COLD_DATA], 403 si->full_seg[CURSEG_COLD_DATA], 404 si->valid_blks[CURSEG_COLD_DATA]); 405 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n", 406 si->curseg[CURSEG_WARM_DATA], 407 si->cursec[CURSEG_WARM_DATA], 408 si->curzone[CURSEG_WARM_DATA], 409 si->dirty_seg[CURSEG_WARM_DATA], 410 si->full_seg[CURSEG_WARM_DATA], 411 si->valid_blks[CURSEG_WARM_DATA]); 412 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n", 413 si->curseg[CURSEG_HOT_DATA], 414 si->cursec[CURSEG_HOT_DATA], 415 si->curzone[CURSEG_HOT_DATA], 416 si->dirty_seg[CURSEG_HOT_DATA], 417 si->full_seg[CURSEG_HOT_DATA], 418 si->valid_blks[CURSEG_HOT_DATA]); 419 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n", 420 si->curseg[CURSEG_HOT_NODE], 421 si->cursec[CURSEG_HOT_NODE], 422 si->curzone[CURSEG_HOT_NODE], 423 si->dirty_seg[CURSEG_HOT_NODE], 424 si->full_seg[CURSEG_HOT_NODE], 425 si->valid_blks[CURSEG_HOT_NODE]); 426 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n", 427 si->curseg[CURSEG_WARM_NODE], 428 si->cursec[CURSEG_WARM_NODE], 429 si->curzone[CURSEG_WARM_NODE], 430 si->dirty_seg[CURSEG_WARM_NODE], 431 si->full_seg[CURSEG_WARM_NODE], 432 si->valid_blks[CURSEG_WARM_NODE]); 433 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n", 434 si->curseg[CURSEG_COLD_NODE], 435 si->cursec[CURSEG_COLD_NODE], 436 si->curzone[CURSEG_COLD_NODE], 437 si->dirty_seg[CURSEG_COLD_NODE], 438 si->full_seg[CURSEG_COLD_NODE], 439 si->valid_blks[CURSEG_COLD_NODE]); 440 seq_printf(s, " - Pinned file: %8d %8d %8d\n", 441 si->curseg[CURSEG_COLD_DATA_PINNED], 442 si->cursec[CURSEG_COLD_DATA_PINNED], 443 si->curzone[CURSEG_COLD_DATA_PINNED]); 444 seq_printf(s, " - ATGC data: %8d %8d %8d\n", 445 si->curseg[CURSEG_ALL_DATA_ATGC], 446 si->cursec[CURSEG_ALL_DATA_ATGC], 447 si->curzone[CURSEG_ALL_DATA_ATGC]); 448 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", 449 si->main_area_segs - si->dirty_count - 450 si->prefree_count - si->free_segs, 451 si->dirty_count); 452 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", 453 si->prefree_count, si->free_segs, si->free_secs); 454 seq_printf(s, "CP calls: %d (BG: %d)\n", 455 si->cp_count, si->bg_cp_count); 456 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]); 457 seq_printf(s, " - sit blocks : %u\n", 458 si->meta_count[META_SIT]); 459 seq_printf(s, " - nat blocks : %u\n", 460 si->meta_count[META_NAT]); 461 seq_printf(s, " - ssa blocks : %u\n", 462 si->meta_count[META_SSA]); 463 seq_printf(s, "CP merge (Queued: %4d, Issued: %4d, Total: %4d, " 464 "Cur time: %4d(ms), Peak time: %4d(ms))\n", 465 si->nr_queued_ckpt, si->nr_issued_ckpt, 466 si->nr_total_ckpt, si->cur_ckpt_time, 467 si->peak_ckpt_time); 468 seq_printf(s, "GC calls: %d (BG: %d)\n", 469 si->call_count, si->bg_gc); 470 seq_printf(s, " - data segments : %d (%d)\n", 471 si->data_segs, si->bg_data_segs); 472 seq_printf(s, " - node segments : %d (%d)\n", 473 si->node_segs, si->bg_node_segs); 474 seq_printf(s, " - Reclaimed segs : Normal (%d), Idle CB (%d), " 475 "Idle Greedy (%d), Idle AT (%d), " 476 "Urgent High (%d), Urgent Mid (%d), " 477 "Urgent Low (%d)\n", 478 si->sbi->gc_reclaimed_segs[GC_NORMAL], 479 si->sbi->gc_reclaimed_segs[GC_IDLE_CB], 480 si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY], 481 si->sbi->gc_reclaimed_segs[GC_IDLE_AT], 482 si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH], 483 si->sbi->gc_reclaimed_segs[GC_URGENT_MID], 484 si->sbi->gc_reclaimed_segs[GC_URGENT_LOW]); 485 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, 486 si->bg_data_blks + si->bg_node_blks); 487 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, 488 si->bg_data_blks); 489 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, 490 si->bg_node_blks); 491 seq_printf(s, "BG skip : IO: %u, Other: %u\n", 492 si->io_skip_bggc, si->other_skip_bggc); 493 seq_puts(s, "\nExtent Cache:\n"); 494 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", 495 si->hit_largest, si->hit_cached, 496 si->hit_rbtree); 497 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", 498 !si->total_ext ? 0 : 499 div64_u64(si->hit_total * 100, si->total_ext), 500 si->hit_total, si->total_ext); 501 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", 502 si->ext_tree, si->zombie_tree, si->ext_node); 503 seq_puts(s, "\nBalancing F2FS Async:\n"); 504 seq_printf(s, " - DIO (R: %4d, W: %4d)\n", 505 si->nr_dio_read, si->nr_dio_write); 506 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n", 507 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta); 508 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), " 509 "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", 510 si->nr_wb_cp_data, si->nr_wb_data, 511 si->nr_flushing, si->nr_flushed, 512 si->flush_list_empty, 513 si->nr_discarding, si->nr_discarded, 514 si->nr_discard_cmd, si->undiscard_blks); 515 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n", 516 si->aw_cnt, si->max_aw_cnt); 517 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit); 518 seq_printf(s, " - nodes: %4d in %4d\n", 519 si->ndirty_node, si->node_pages); 520 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", 521 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); 522 seq_printf(s, " - datas: %4d in files:%4d\n", 523 si->ndirty_data, si->ndirty_files); 524 seq_printf(s, " - quota datas: %4d in quota files:%4d\n", 525 si->ndirty_qdata, si->nquota_files); 526 seq_printf(s, " - meta: %4d in %4d\n", 527 si->ndirty_meta, si->meta_pages); 528 seq_printf(s, " - imeta: %4d\n", 529 si->ndirty_imeta); 530 seq_printf(s, " - fsync mark: %4lld\n", 531 percpu_counter_sum_positive( 532 &si->sbi->rf_node_block_count)); 533 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", 534 si->dirty_nats, si->nats, si->dirty_sits, si->sits); 535 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", 536 si->free_nids, si->avail_nids, si->alloc_nids); 537 seq_puts(s, "\nDistribution of User Blocks:"); 538 seq_puts(s, " [ valid | invalid | free ]\n"); 539 seq_puts(s, " ["); 540 541 for (j = 0; j < si->util_valid; j++) 542 seq_putc(s, '-'); 543 seq_putc(s, '|'); 544 545 for (j = 0; j < si->util_invalid; j++) 546 seq_putc(s, '-'); 547 seq_putc(s, '|'); 548 549 for (j = 0; j < si->util_free; j++) 550 seq_putc(s, '-'); 551 seq_puts(s, "]\n\n"); 552 seq_printf(s, "IPU: %u blocks\n", si->inplace_count); 553 seq_printf(s, "SSR: %u blocks in %u segments\n", 554 si->block_count[SSR], si->segment_count[SSR]); 555 seq_printf(s, "LFS: %u blocks in %u segments\n", 556 si->block_count[LFS], si->segment_count[LFS]); 557 558 /* segment usage info */ 559 f2fs_update_sit_info(si->sbi); 560 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", 561 si->bimodal, si->avg_vblocks); 562 563 /* memory footprint */ 564 update_mem_info(si->sbi); 565 seq_printf(s, "\nMemory: %llu KB\n", 566 (si->base_mem + si->cache_mem + si->page_mem) >> 10); 567 seq_printf(s, " - static: %llu KB\n", 568 si->base_mem >> 10); 569 seq_printf(s, " - cached: %llu KB\n", 570 si->cache_mem >> 10); 571 seq_printf(s, " - paged : %llu KB\n", 572 si->page_mem >> 10); 573 } 574 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 575 return 0; 576 } 577 578 DEFINE_SHOW_ATTRIBUTE(stat); 579 #endif 580 581 int f2fs_build_stats(struct f2fs_sb_info *sbi) 582 { 583 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); 584 struct f2fs_stat_info *si; 585 unsigned long flags; 586 int i; 587 588 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); 589 if (!si) 590 return -ENOMEM; 591 592 si->all_area_segs = le32_to_cpu(raw_super->segment_count); 593 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); 594 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); 595 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); 596 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); 597 si->main_area_sections = le32_to_cpu(raw_super->section_count); 598 si->main_area_zones = si->main_area_sections / 599 le32_to_cpu(raw_super->secs_per_zone); 600 si->sbi = sbi; 601 sbi->stat_info = si; 602 603 atomic64_set(&sbi->total_hit_ext, 0); 604 atomic64_set(&sbi->read_hit_rbtree, 0); 605 atomic64_set(&sbi->read_hit_largest, 0); 606 atomic64_set(&sbi->read_hit_cached, 0); 607 608 atomic_set(&sbi->inline_xattr, 0); 609 atomic_set(&sbi->inline_inode, 0); 610 atomic_set(&sbi->inline_dir, 0); 611 atomic_set(&sbi->compr_inode, 0); 612 atomic64_set(&sbi->compr_blocks, 0); 613 atomic_set(&sbi->swapfile_inode, 0); 614 atomic_set(&sbi->atomic_files, 0); 615 atomic_set(&sbi->inplace_count, 0); 616 for (i = META_CP; i < META_MAX; i++) 617 atomic_set(&sbi->meta_count[i], 0); 618 619 atomic_set(&sbi->max_aw_cnt, 0); 620 621 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 622 list_add_tail(&si->stat_list, &f2fs_stat_list); 623 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 624 625 return 0; 626 } 627 628 void f2fs_destroy_stats(struct f2fs_sb_info *sbi) 629 { 630 struct f2fs_stat_info *si = F2FS_STAT(sbi); 631 unsigned long flags; 632 633 raw_spin_lock_irqsave(&f2fs_stat_lock, flags); 634 list_del(&si->stat_list); 635 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags); 636 637 kfree(si); 638 } 639 640 void __init f2fs_create_root_stats(void) 641 { 642 #ifdef CONFIG_DEBUG_FS 643 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); 644 645 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL, 646 &stat_fops); 647 #endif 648 } 649 650 void f2fs_destroy_root_stats(void) 651 { 652 #ifdef CONFIG_DEBUG_FS 653 debugfs_remove_recursive(f2fs_debugfs_root); 654 f2fs_debugfs_root = NULL; 655 #endif 656 } 657