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1// SPDX-License-Identifier: GPL-2.02/*3 * f2fs debugging statistics4 *5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.6 * http://www.samsung.com/7 * Copyright (c) 2012 Linux Foundation8 * 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_FS26static struct dentry *f2fs_debugfs_root;27#endif28 29/*30 * This function calculates BDF of every segments31 */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 else59 si->avg_vblocks = 0;60}61 62#ifdef CONFIG_DEBUG_FS63static 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_COMPRESSION165 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#endif170 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 else213 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 += F2FS_BLK_TO_BYTES(NM_I(sbi)->nat_bits_blocks);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_COMPRESSION333 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#endif339}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 else420 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#endif663 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_FS733 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);734 735 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,736 &stat_fops);737#endif738}739 740void f2fs_destroy_root_stats(void)741{742#ifdef CONFIG_DEBUG_FS743 debugfs_remove_recursive(f2fs_debugfs_root);744 f2fs_debugfs_root = NULL;745#endif746}747