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- // SPDX-License-Identifier: GPL-2.0
- /*
- * f2fs debugging statistics
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- * Copyright (c) 2012 Linux Foundation
- * Copyright (c) 2012 Greg Kroah-Hartman <[email protected]>
- */
- #include <linux/fs.h>
- #include <linux/backing-dev.h>
- #include <linux/f2fs_fs.h>
- #include <linux/blkdev.h>
- #include <linux/debugfs.h>
- #include <linux/seq_file.h>
- #include "f2fs.h"
- #include "node.h"
- #include "segment.h"
- #include "gc.h"
- static LIST_HEAD(f2fs_stat_list);
- static DEFINE_RAW_SPINLOCK(f2fs_stat_lock);
- #ifdef CONFIG_DEBUG_FS
- static struct dentry *f2fs_debugfs_root;
- #endif
- /*
- * This function calculates BDF of every segments
- */
- void f2fs_update_sit_info(struct f2fs_sb_info *sbi)
- {
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- unsigned long long blks_per_sec, hblks_per_sec, total_vblocks;
- unsigned long long bimodal, dist;
- unsigned int segno, vblocks;
- int ndirty = 0;
- bimodal = 0;
- total_vblocks = 0;
- blks_per_sec = CAP_BLKS_PER_SEC(sbi);
- hblks_per_sec = blks_per_sec / 2;
- for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) {
- vblocks = get_valid_blocks(sbi, segno, true);
- dist = abs(vblocks - hblks_per_sec);
- bimodal += dist * dist;
- if (vblocks > 0 && vblocks < blks_per_sec) {
- total_vblocks += vblocks;
- ndirty++;
- }
- }
- dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
- si->bimodal = div64_u64(bimodal, dist);
- if (si->dirty_count)
- si->avg_vblocks = div_u64(total_vblocks, ndirty);
- else
- si->avg_vblocks = 0;
- }
- #ifdef CONFIG_DEBUG_FS
- static void update_general_status(struct f2fs_sb_info *sbi)
- {
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
- int i;
- /* these will be changed if online resize is done */
- si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
- si->main_area_sections = le32_to_cpu(raw_super->section_count);
- si->main_area_zones = si->main_area_sections /
- le32_to_cpu(raw_super->secs_per_zone);
- /* general extent cache stats */
- for (i = 0; i < NR_EXTENT_CACHES; i++) {
- struct extent_tree_info *eti = &sbi->extent_tree[i];
- si->hit_cached[i] = atomic64_read(&sbi->read_hit_cached[i]);
- si->hit_rbtree[i] = atomic64_read(&sbi->read_hit_rbtree[i]);
- si->total_ext[i] = atomic64_read(&sbi->total_hit_ext[i]);
- si->hit_total[i] = si->hit_cached[i] + si->hit_rbtree[i];
- si->ext_tree[i] = atomic_read(&eti->total_ext_tree);
- si->zombie_tree[i] = atomic_read(&eti->total_zombie_tree);
- si->ext_node[i] = atomic_read(&eti->total_ext_node);
- }
- /* read extent_cache only */
- si->hit_largest = atomic64_read(&sbi->read_hit_largest);
- si->hit_total[EX_READ] += si->hit_largest;
- /* block age extent_cache only */
- si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks);
- /* validation check of the segment numbers */
- si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
- si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
- si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
- si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
- si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
- si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
- si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
- si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
- si->nquota_files = sbi->nquota_files;
- si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
- si->aw_cnt = atomic_read(&sbi->atomic_files);
- si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
- si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
- si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
- si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
- si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
- si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
- si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
- si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
- if (SM_I(sbi)->fcc_info) {
- si->nr_flushed =
- atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
- si->nr_flushing =
- atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
- si->flush_list_empty =
- llist_empty(&SM_I(sbi)->fcc_info->issue_list);
- }
- if (SM_I(sbi)->dcc_info) {
- si->nr_discarded =
- atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
- si->nr_discarding =
- atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
- si->nr_discard_cmd =
- atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
- si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
- }
- si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt);
- si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt);
- si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt);
- spin_lock(&sbi->cprc_info.stat_lock);
- si->cur_ckpt_time = sbi->cprc_info.cur_time;
- si->peak_ckpt_time = sbi->cprc_info.peak_time;
- spin_unlock(&sbi->cprc_info.stat_lock);
- si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
- si->rsvd_segs = reserved_segments(sbi);
- si->overp_segs = overprovision_segments(sbi);
- si->valid_count = valid_user_blocks(sbi);
- si->discard_blks = discard_blocks(sbi);
- si->valid_node_count = valid_node_count(sbi);
- si->valid_inode_count = valid_inode_count(sbi);
- si->inline_xattr = atomic_read(&sbi->inline_xattr);
- si->inline_inode = atomic_read(&sbi->inline_inode);
- si->inline_dir = atomic_read(&sbi->inline_dir);
- si->compr_inode = atomic_read(&sbi->compr_inode);
- si->swapfile_inode = atomic_read(&sbi->swapfile_inode);
- si->compr_blocks = atomic64_read(&sbi->compr_blocks);
- si->append = sbi->im[APPEND_INO].ino_num;
- si->update = sbi->im[UPDATE_INO].ino_num;
- si->orphans = sbi->im[ORPHAN_INO].ino_num;
- si->utilization = utilization(sbi);
- si->free_segs = free_segments(sbi);
- si->free_secs = free_sections(sbi);
- si->prefree_count = prefree_segments(sbi);
- si->dirty_count = dirty_segments(sbi);
- if (sbi->node_inode)
- si->node_pages = NODE_MAPPING(sbi)->nrpages;
- if (sbi->meta_inode)
- si->meta_pages = META_MAPPING(sbi)->nrpages;
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- if (sbi->compress_inode) {
- si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
- si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
- }
- #endif
- si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
- si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
- si->sits = MAIN_SEGS(sbi);
- si->dirty_sits = SIT_I(sbi)->dirty_sentries;
- si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
- si->avail_nids = NM_I(sbi)->available_nids;
- si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
- si->io_skip_bggc = sbi->io_skip_bggc;
- si->other_skip_bggc = sbi->other_skip_bggc;
- si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
- * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
- / 2;
- si->util_valid = (int)(written_block_count(sbi) >>
- sbi->log_blocks_per_seg)
- * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
- / 2;
- si->util_invalid = 50 - si->util_free - si->util_valid;
- for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
- struct curseg_info *curseg = CURSEG_I(sbi, i);
- si->curseg[i] = curseg->segno;
- si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
- si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
- }
- for (i = META_CP; i < META_MAX; i++)
- si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
- for (i = 0; i < NO_CHECK_TYPE; i++) {
- si->dirty_seg[i] = 0;
- si->full_seg[i] = 0;
- si->valid_blks[i] = 0;
- }
- for (i = 0; i < MAIN_SEGS(sbi); i++) {
- int blks = get_seg_entry(sbi, i)->valid_blocks;
- int type = get_seg_entry(sbi, i)->type;
- if (!blks)
- continue;
- if (blks == sbi->blocks_per_seg)
- si->full_seg[type]++;
- else
- si->dirty_seg[type]++;
- si->valid_blks[type] += blks;
- }
- for (i = 0; i < 2; i++) {
- si->segment_count[i] = sbi->segment_count[i];
- si->block_count[i] = sbi->block_count[i];
- }
- si->inplace_count = atomic_read(&sbi->inplace_count);
- }
- /*
- * This function calculates memory footprint.
- */
- static void update_mem_info(struct f2fs_sb_info *sbi)
- {
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- int i;
- if (si->base_mem)
- goto get_cache;
- /* build stat */
- si->base_mem = sizeof(struct f2fs_stat_info);
- /* build superblock */
- si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
- si->base_mem += 2 * sizeof(struct f2fs_inode_info);
- si->base_mem += sizeof(*sbi->ckpt);
- /* build sm */
- si->base_mem += sizeof(struct f2fs_sm_info);
- /* build sit */
- si->base_mem += sizeof(struct sit_info);
- si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
- si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
- si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
- si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
- si->base_mem += SIT_VBLOCK_MAP_SIZE;
- if (__is_large_section(sbi))
- si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
- si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
- /* build free segmap */
- si->base_mem += sizeof(struct free_segmap_info);
- si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
- si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
- /* build curseg */
- si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
- si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
- /* build dirty segmap */
- si->base_mem += sizeof(struct dirty_seglist_info);
- si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
- si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
- /* build nm */
- si->base_mem += sizeof(struct f2fs_nm_info);
- si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
- si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS);
- si->base_mem += NM_I(sbi)->nat_blocks *
- f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
- si->base_mem += NM_I(sbi)->nat_blocks / 8;
- si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
- get_cache:
- si->cache_mem = 0;
- /* build gc */
- if (sbi->gc_thread)
- si->cache_mem += sizeof(struct f2fs_gc_kthread);
- /* build merge flush thread */
- if (SM_I(sbi)->fcc_info)
- si->cache_mem += sizeof(struct flush_cmd_control);
- if (SM_I(sbi)->dcc_info) {
- si->cache_mem += sizeof(struct discard_cmd_control);
- si->cache_mem += sizeof(struct discard_cmd) *
- atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
- }
- /* free nids */
- si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
- NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
- sizeof(struct free_nid);
- si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
- sizeof(struct nat_entry);
- si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
- sizeof(struct nat_entry_set);
- for (i = 0; i < MAX_INO_ENTRY; i++)
- si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
- for (i = 0; i < NR_EXTENT_CACHES; i++) {
- struct extent_tree_info *eti = &sbi->extent_tree[i];
- si->ext_mem[i] = atomic_read(&eti->total_ext_tree) *
- sizeof(struct extent_tree);
- si->ext_mem[i] += atomic_read(&eti->total_ext_node) *
- sizeof(struct extent_node);
- si->cache_mem += si->ext_mem[i];
- }
- si->page_mem = 0;
- if (sbi->node_inode) {
- unsigned long npages = NODE_MAPPING(sbi)->nrpages;
- si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
- }
- if (sbi->meta_inode) {
- unsigned long npages = META_MAPPING(sbi)->nrpages;
- si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
- }
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- if (sbi->compress_inode) {
- unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
- si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
- }
- #endif
- }
- static const char *s_flag[MAX_SBI_FLAG] = {
- [SBI_IS_DIRTY] = "fs_dirty",
- [SBI_IS_CLOSE] = "closing",
- [SBI_NEED_FSCK] = "need_fsck",
- [SBI_POR_DOING] = "recovering",
- [SBI_NEED_SB_WRITE] = "sb_dirty",
- [SBI_NEED_CP] = "need_cp",
- [SBI_IS_SHUTDOWN] = "shutdown",
- [SBI_IS_RECOVERED] = "recovered",
- [SBI_CP_DISABLED] = "cp_disabled",
- [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick",
- [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush",
- [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush",
- [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair",
- [SBI_IS_RESIZEFS] = "resizefs",
- [SBI_IS_FREEZING] = "freezefs",
- [SBI_IS_WRITABLE] = "writable",
- };
- static const char *ipu_mode_names[F2FS_IPU_MAX] = {
- [F2FS_IPU_FORCE] = "FORCE",
- [F2FS_IPU_SSR] = "SSR",
- [F2FS_IPU_UTIL] = "UTIL",
- [F2FS_IPU_SSR_UTIL] = "SSR_UTIL",
- [F2FS_IPU_FSYNC] = "FSYNC",
- [F2FS_IPU_ASYNC] = "ASYNC",
- [F2FS_IPU_NOCACHE] = "NOCACHE",
- [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE",
- };
- static int stat_show(struct seq_file *s, void *v)
- {
- struct f2fs_stat_info *si;
- int i = 0, j = 0;
- unsigned long flags;
- raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
- list_for_each_entry(si, &f2fs_stat_list, stat_list) {
- struct f2fs_sb_info *sbi = si->sbi;
- update_general_status(sbi);
- seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
- sbi->sb->s_bdev, i++,
- f2fs_readonly(sbi->sb) ? "RO" : "RW",
- is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ?
- "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good"));
- if (sbi->s_flag) {
- seq_puts(s, "[SBI:");
- for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG)
- seq_printf(s, " %s", s_flag[j]);
- seq_puts(s, "]\n");
- }
- seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
- si->sit_area_segs, si->nat_area_segs);
- seq_printf(s, "[SSA: %d] [MAIN: %d",
- si->ssa_area_segs, si->main_area_segs);
- seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
- si->overp_segs, si->rsvd_segs);
- seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
- ktime_get_boottime_seconds(),
- SIT_I(sbi)->mounted_time);
- seq_puts(s, "Policy:\n");
- seq_puts(s, " - IPU: [");
- if (IS_F2FS_IPU_DISABLE(sbi)) {
- seq_puts(s, " DISABLE");
- } else {
- unsigned long policy = SM_I(sbi)->ipu_policy;
- for_each_set_bit(j, &policy, F2FS_IPU_MAX)
- seq_printf(s, " %s", ipu_mode_names[j]);
- }
- seq_puts(s, " ]\n\n");
- if (test_opt(sbi, DISCARD))
- seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
- si->utilization, si->valid_count, si->discard_blks);
- else
- seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
- si->utilization, si->valid_count);
- seq_printf(s, " - Node: %u (Inode: %u, ",
- si->valid_node_count, si->valid_inode_count);
- seq_printf(s, "Other: %u)\n - Data: %u\n",
- si->valid_node_count - si->valid_inode_count,
- si->valid_count - si->valid_node_count);
- seq_printf(s, " - Inline_xattr Inode: %u\n",
- si->inline_xattr);
- seq_printf(s, " - Inline_data Inode: %u\n",
- si->inline_inode);
- seq_printf(s, " - Inline_dentry Inode: %u\n",
- si->inline_dir);
- seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
- si->compr_inode, si->compr_blocks);
- seq_printf(s, " - Swapfile Inode: %u\n",
- si->swapfile_inode);
- seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
- si->orphans, si->append, si->update);
- seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
- si->main_area_segs, si->main_area_sections,
- si->main_area_zones);
- seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n",
- "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
- seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_COLD_DATA],
- si->cursec[CURSEG_COLD_DATA],
- si->curzone[CURSEG_COLD_DATA],
- si->dirty_seg[CURSEG_COLD_DATA],
- si->full_seg[CURSEG_COLD_DATA],
- si->valid_blks[CURSEG_COLD_DATA]);
- seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_WARM_DATA],
- si->cursec[CURSEG_WARM_DATA],
- si->curzone[CURSEG_WARM_DATA],
- si->dirty_seg[CURSEG_WARM_DATA],
- si->full_seg[CURSEG_WARM_DATA],
- si->valid_blks[CURSEG_WARM_DATA]);
- seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_HOT_DATA],
- si->cursec[CURSEG_HOT_DATA],
- si->curzone[CURSEG_HOT_DATA],
- si->dirty_seg[CURSEG_HOT_DATA],
- si->full_seg[CURSEG_HOT_DATA],
- si->valid_blks[CURSEG_HOT_DATA]);
- seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_HOT_NODE],
- si->cursec[CURSEG_HOT_NODE],
- si->curzone[CURSEG_HOT_NODE],
- si->dirty_seg[CURSEG_HOT_NODE],
- si->full_seg[CURSEG_HOT_NODE],
- si->valid_blks[CURSEG_HOT_NODE]);
- seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_WARM_NODE],
- si->cursec[CURSEG_WARM_NODE],
- si->curzone[CURSEG_WARM_NODE],
- si->dirty_seg[CURSEG_WARM_NODE],
- si->full_seg[CURSEG_WARM_NODE],
- si->valid_blks[CURSEG_WARM_NODE]);
- seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n",
- si->curseg[CURSEG_COLD_NODE],
- si->cursec[CURSEG_COLD_NODE],
- si->curzone[CURSEG_COLD_NODE],
- si->dirty_seg[CURSEG_COLD_NODE],
- si->full_seg[CURSEG_COLD_NODE],
- si->valid_blks[CURSEG_COLD_NODE]);
- seq_printf(s, " - Pinned file: %8d %8d %8d\n",
- si->curseg[CURSEG_COLD_DATA_PINNED],
- si->cursec[CURSEG_COLD_DATA_PINNED],
- si->curzone[CURSEG_COLD_DATA_PINNED]);
- seq_printf(s, " - ATGC data: %8d %8d %8d\n",
- si->curseg[CURSEG_ALL_DATA_ATGC],
- si->cursec[CURSEG_ALL_DATA_ATGC],
- si->curzone[CURSEG_ALL_DATA_ATGC]);
- seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
- si->main_area_segs - si->dirty_count -
- si->prefree_count - si->free_segs,
- si->dirty_count);
- seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
- si->prefree_count, si->free_segs, si->free_secs);
- seq_printf(s, "CP calls: %d (BG: %d)\n",
- si->cp_count, si->bg_cp_count);
- seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
- seq_printf(s, " - sit blocks : %u\n",
- si->meta_count[META_SIT]);
- seq_printf(s, " - nat blocks : %u\n",
- si->meta_count[META_NAT]);
- seq_printf(s, " - ssa blocks : %u\n",
- si->meta_count[META_SSA]);
- seq_puts(s, "CP merge:\n");
- seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt);
- seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt);
- seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt);
- seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time);
- seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time);
- seq_printf(s, "GC calls: %d (BG: %d)\n",
- si->call_count, si->bg_gc);
- seq_printf(s, " - data segments : %d (%d)\n",
- si->data_segs, si->bg_data_segs);
- seq_printf(s, " - node segments : %d (%d)\n",
- si->node_segs, si->bg_node_segs);
- seq_puts(s, " - Reclaimed segs :\n");
- seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]);
- seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]);
- seq_printf(s, " - Idle Greedy : %d\n",
- sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
- seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]);
- seq_printf(s, " - Urgent High : %d\n",
- sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
- seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]);
- seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
- seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
- si->bg_data_blks + si->bg_node_blks);
- seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
- si->bg_data_blks);
- seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
- si->bg_node_blks);
- seq_printf(s, "BG skip : IO: %u, Other: %u\n",
- si->io_skip_bggc, si->other_skip_bggc);
- seq_puts(s, "\nExtent Cache (Read):\n");
- seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
- si->hit_largest, si->hit_cached[EX_READ],
- si->hit_rbtree[EX_READ]);
- seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
- !si->total_ext[EX_READ] ? 0 :
- div64_u64(si->hit_total[EX_READ] * 100,
- si->total_ext[EX_READ]),
- si->hit_total[EX_READ], si->total_ext[EX_READ]);
- seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
- si->ext_tree[EX_READ], si->zombie_tree[EX_READ],
- si->ext_node[EX_READ]);
- seq_puts(s, "\nExtent Cache (Block Age):\n");
- seq_printf(s, " - Allocated Data Blocks: %llu\n",
- si->allocated_data_blocks);
- seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n",
- si->hit_cached[EX_BLOCK_AGE],
- si->hit_rbtree[EX_BLOCK_AGE]);
- seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
- !si->total_ext[EX_BLOCK_AGE] ? 0 :
- div64_u64(si->hit_total[EX_BLOCK_AGE] * 100,
- si->total_ext[EX_BLOCK_AGE]),
- si->hit_total[EX_BLOCK_AGE],
- si->total_ext[EX_BLOCK_AGE]);
- seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
- si->ext_tree[EX_BLOCK_AGE],
- si->zombie_tree[EX_BLOCK_AGE],
- si->ext_node[EX_BLOCK_AGE]);
- seq_puts(s, "\nBalancing F2FS Async:\n");
- seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
- si->nr_dio_read, si->nr_dio_write);
- seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
- si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
- seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ",
- si->nr_wb_cp_data, si->nr_wb_data,
- si->nr_flushing, si->nr_flushed,
- si->flush_list_empty);
- seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
- si->nr_discarding, si->nr_discarded,
- si->nr_discard_cmd, si->undiscard_blks);
- seq_printf(s, " - atomic IO: %4d (Max. %4d)\n",
- si->aw_cnt, si->max_aw_cnt);
- seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
- seq_printf(s, " - nodes: %4d in %4d\n",
- si->ndirty_node, si->node_pages);
- seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
- si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
- seq_printf(s, " - datas: %4d in files:%4d\n",
- si->ndirty_data, si->ndirty_files);
- seq_printf(s, " - quota datas: %4d in quota files:%4d\n",
- si->ndirty_qdata, si->nquota_files);
- seq_printf(s, " - meta: %4d in %4d\n",
- si->ndirty_meta, si->meta_pages);
- seq_printf(s, " - imeta: %4d\n",
- si->ndirty_imeta);
- seq_printf(s, " - fsync mark: %4lld\n",
- percpu_counter_sum_positive(
- &sbi->rf_node_block_count));
- seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
- si->dirty_nats, si->nats, si->dirty_sits, si->sits);
- seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
- si->free_nids, si->avail_nids, si->alloc_nids);
- seq_puts(s, "\nDistribution of User Blocks:");
- seq_puts(s, " [ valid | invalid | free ]\n");
- seq_puts(s, " [");
- for (j = 0; j < si->util_valid; j++)
- seq_putc(s, '-');
- seq_putc(s, '|');
- for (j = 0; j < si->util_invalid; j++)
- seq_putc(s, '-');
- seq_putc(s, '|');
- for (j = 0; j < si->util_free; j++)
- seq_putc(s, '-');
- seq_puts(s, "]\n\n");
- seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
- seq_printf(s, "SSR: %u blocks in %u segments\n",
- si->block_count[SSR], si->segment_count[SSR]);
- seq_printf(s, "LFS: %u blocks in %u segments\n",
- si->block_count[LFS], si->segment_count[LFS]);
- /* segment usage info */
- f2fs_update_sit_info(sbi);
- seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
- si->bimodal, si->avg_vblocks);
- /* memory footprint */
- update_mem_info(sbi);
- seq_printf(s, "\nMemory: %llu KB\n",
- (si->base_mem + si->cache_mem + si->page_mem) >> 10);
- seq_printf(s, " - static: %llu KB\n",
- si->base_mem >> 10);
- seq_printf(s, " - cached all: %llu KB\n",
- si->cache_mem >> 10);
- seq_printf(s, " - read extent cache: %llu KB\n",
- si->ext_mem[EX_READ] >> 10);
- seq_printf(s, " - block age extent cache: %llu KB\n",
- si->ext_mem[EX_BLOCK_AGE] >> 10);
- seq_printf(s, " - paged : %llu KB\n",
- si->page_mem >> 10);
- }
- raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
- return 0;
- }
- DEFINE_SHOW_ATTRIBUTE(stat);
- #endif
- int f2fs_build_stats(struct f2fs_sb_info *sbi)
- {
- struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
- struct f2fs_stat_info *si;
- unsigned long flags;
- int i;
- si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
- if (!si)
- return -ENOMEM;
- si->all_area_segs = le32_to_cpu(raw_super->segment_count);
- si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
- si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
- si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
- si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
- si->main_area_sections = le32_to_cpu(raw_super->section_count);
- si->main_area_zones = si->main_area_sections /
- le32_to_cpu(raw_super->secs_per_zone);
- si->sbi = sbi;
- sbi->stat_info = si;
- /* general extent cache stats */
- for (i = 0; i < NR_EXTENT_CACHES; i++) {
- atomic64_set(&sbi->total_hit_ext[i], 0);
- atomic64_set(&sbi->read_hit_rbtree[i], 0);
- atomic64_set(&sbi->read_hit_cached[i], 0);
- }
- /* read extent_cache only */
- atomic64_set(&sbi->read_hit_largest, 0);
- atomic_set(&sbi->inline_xattr, 0);
- atomic_set(&sbi->inline_inode, 0);
- atomic_set(&sbi->inline_dir, 0);
- atomic_set(&sbi->compr_inode, 0);
- atomic64_set(&sbi->compr_blocks, 0);
- atomic_set(&sbi->swapfile_inode, 0);
- atomic_set(&sbi->atomic_files, 0);
- atomic_set(&sbi->inplace_count, 0);
- for (i = META_CP; i < META_MAX; i++)
- atomic_set(&sbi->meta_count[i], 0);
- atomic_set(&sbi->max_aw_cnt, 0);
- raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
- list_add_tail(&si->stat_list, &f2fs_stat_list);
- raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
- return 0;
- }
- void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
- {
- struct f2fs_stat_info *si = F2FS_STAT(sbi);
- unsigned long flags;
- raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
- list_del(&si->stat_list);
- raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
- kfree(si);
- }
- void __init f2fs_create_root_stats(void)
- {
- #ifdef CONFIG_DEBUG_FS
- f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
- debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
- &stat_fops);
- #endif
- }
- void f2fs_destroy_root_stats(void)
- {
- #ifdef CONFIG_DEBUG_FS
- debugfs_remove_recursive(f2fs_debugfs_root);
- f2fs_debugfs_root = NULL;
- #endif
- }
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