// 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 <gregkh@linuxfoundation.org> */ #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_FSstatic 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_FSstatic 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 char *s_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",}; 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) { update_general_status(si->sbi); seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", si->sbi->sb->s_bdev, i++, f2fs_readonly(si->sbi->sb) ? "RO" : "RW", is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ? "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good")); if (si->sbi->s_flag) { seq_puts(s, "[SBI:"); for_each_set_bit(j, &si->sbi->s_flag, 32) seq_puts(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(si->sbi)->mounted_time); if (test_opt(si->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", si->sbi->gc_reclaimed_segs[GC_NORMAL]); seq_printf(s, " - Idle CB : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_CB]); seq_printf(s, " - Idle Greedy : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); seq_printf(s, " - Idle AT : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_AT]); seq_printf(s, " - Urgent High : %d\n", si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);Lines 1–500 of 701. 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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 <gregkh@linuxfoundation.org> */ #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 char *s_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", }; 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) { update_general_status(si->sbi); seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", si->sbi->sb->s_bdev, i++, f2fs_readonly(si->sbi->sb) ? "RO" : "RW", is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ? "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good")); if (si->sbi->s_flag) { seq_puts(s, "[SBI:"); for_each_set_bit(j, &si->sbi->s_flag, 32) seq_puts(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(si->sbi)->mounted_time); if (test_opt(si->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", si->sbi->gc_reclaimed_segs[GC_NORMAL]); seq_printf(s, " - Idle CB : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_CB]); seq_printf(s, " - Idle Greedy : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]); seq_printf(s, " - Idle AT : %d\n", si->sbi->gc_reclaimed_segs[GC_IDLE_AT]); seq_printf(s, " - Urgent High : %d\n", si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);