Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 1 | /* |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 2 | * f2fs debugging statistics |
| 3 | * |
| 4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. |
| 5 | * http://www.samsung.com/ |
| 6 | * Copyright (c) 2012 Linux Foundation |
| 7 | * Copyright (c) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/fs.h> |
| 15 | #include <linux/backing-dev.h> |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 16 | #include <linux/f2fs_fs.h> |
| 17 | #include <linux/blkdev.h> |
| 18 | #include <linux/debugfs.h> |
| 19 | #include <linux/seq_file.h> |
| 20 | |
| 21 | #include "f2fs.h" |
| 22 | #include "node.h" |
| 23 | #include "segment.h" |
| 24 | #include "gc.h" |
| 25 | |
| 26 | static LIST_HEAD(f2fs_stat_list); |
Younger Liu | 40e1ebe | 2013-12-03 21:09:29 +0800 | [diff] [blame] | 27 | static struct dentry *f2fs_debugfs_root; |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 28 | static DEFINE_MUTEX(f2fs_stat_mutex); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 29 | |
Jaegeuk Kim | 25ca923 | 2012-11-28 16:12:41 +0900 | [diff] [blame] | 30 | static void update_general_status(struct f2fs_sb_info *sbi) |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 31 | { |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 32 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 33 | int i; |
| 34 | |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 35 | /* validation check of the segment numbers */ |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 36 | si->hit_largest = atomic64_read(&sbi->read_hit_largest); |
| 37 | si->hit_cached = atomic64_read(&sbi->read_hit_cached); |
| 38 | si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree); |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 39 | si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree; |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 40 | si->total_ext = atomic64_read(&sbi->total_hit_ext); |
Jaegeuk Kim | 7441cce | 2015-12-21 19:20:15 -0800 | [diff] [blame] | 41 | si->ext_tree = atomic_read(&sbi->total_ext_tree); |
Jaegeuk Kim | c00ba55 | 2015-12-31 15:24:14 -0800 | [diff] [blame] | 42 | si->zombie_tree = atomic_read(&sbi->total_zombie_tree); |
Chao Yu | 4bf6fd9 | 2015-02-05 17:58:28 +0800 | [diff] [blame] | 43 | si->ext_node = atomic_read(&sbi->total_ext_node); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 44 | si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); |
| 45 | si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 46 | si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 47 | si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); |
Chao Yu | 5bc994a | 2016-09-18 23:30:08 +0800 | [diff] [blame] | 48 | si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 49 | si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; |
| 50 | si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 51 | si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; |
Jaegeuk Kim | 8dcf2ff7 | 2014-12-05 17:18:15 -0800 | [diff] [blame] | 52 | si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES); |
Jaegeuk Kim | f573018 | 2016-05-17 16:23:36 -0700 | [diff] [blame] | 53 | si->wb_bios = atomic_read(&sbi->nr_wb_bios); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 54 | si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; |
| 55 | si->rsvd_segs = reserved_segments(sbi); |
| 56 | si->overp_segs = overprovision_segments(sbi); |
| 57 | si->valid_count = valid_user_blocks(sbi); |
Yunlei He | f83a258 | 2016-08-18 21:01:18 +0800 | [diff] [blame] | 58 | si->discard_blks = discard_blocks(sbi); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 59 | si->valid_node_count = valid_node_count(sbi); |
| 60 | si->valid_inode_count = valid_inode_count(sbi); |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 61 | si->inline_xattr = atomic_read(&sbi->inline_xattr); |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 62 | si->inline_inode = atomic_read(&sbi->inline_inode); |
| 63 | si->inline_dir = atomic_read(&sbi->inline_dir); |
Jaegeuk Kim | 652be55 | 2016-05-10 19:13:50 -0700 | [diff] [blame] | 64 | si->orphans = sbi->im[ORPHAN_INO].ino_num; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 65 | si->utilization = utilization(sbi); |
| 66 | |
| 67 | si->free_segs = free_segments(sbi); |
| 68 | si->free_secs = free_sections(sbi); |
| 69 | si->prefree_count = prefree_segments(sbi); |
| 70 | si->dirty_count = dirty_segments(sbi); |
Jaegeuk Kim | 4ef51a8 | 2014-01-21 18:51:16 +0900 | [diff] [blame] | 71 | si->node_pages = NODE_MAPPING(sbi)->nrpages; |
Gu Zheng | 9df27d9 | 2014-01-20 18:37:04 +0800 | [diff] [blame] | 72 | si->meta_pages = META_MAPPING(sbi)->nrpages; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 73 | si->nats = NM_I(sbi)->nat_cnt; |
Jaegeuk Kim | dd4e4b5 | 2015-01-07 11:09:37 -0800 | [diff] [blame] | 74 | si->dirty_nats = NM_I(sbi)->dirty_nat_cnt; |
| 75 | si->sits = MAIN_SEGS(sbi); |
| 76 | si->dirty_sits = SIT_I(sbi)->dirty_sentries; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 77 | si->fnids = NM_I(sbi)->fcnt; |
| 78 | si->bg_gc = sbi->bg_gc; |
| 79 | si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg) |
| 80 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) |
| 81 | / 2; |
| 82 | si->util_valid = (int)(written_block_count(sbi) >> |
| 83 | sbi->log_blocks_per_seg) |
| 84 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) |
| 85 | / 2; |
| 86 | si->util_invalid = 50 - si->util_free - si->util_valid; |
| 87 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) { |
| 88 | struct curseg_info *curseg = CURSEG_I(sbi, i); |
| 89 | si->curseg[i] = curseg->segno; |
| 90 | si->cursec[i] = curseg->segno / sbi->segs_per_sec; |
| 91 | si->curzone[i] = si->cursec[i] / sbi->secs_per_zone; |
| 92 | } |
| 93 | |
| 94 | for (i = 0; i < 2; i++) { |
| 95 | si->segment_count[i] = sbi->segment_count[i]; |
| 96 | si->block_count[i] = sbi->block_count[i]; |
| 97 | } |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 98 | |
| 99 | si->inplace_count = atomic_read(&sbi->inplace_count); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 100 | } |
| 101 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 102 | /* |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 103 | * This function calculates BDF of every segments |
| 104 | */ |
| 105 | static void update_sit_info(struct f2fs_sb_info *sbi) |
| 106 | { |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 107 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
Jaegeuk Kim | 3589a91 | 2015-05-08 16:37:28 -0700 | [diff] [blame] | 108 | unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; |
| 109 | unsigned long long bimodal, dist; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 110 | unsigned int segno, vblocks; |
| 111 | int ndirty = 0; |
| 112 | |
| 113 | bimodal = 0; |
| 114 | total_vblocks = 0; |
Chao Yu | 3519e3f | 2015-12-01 11:56:52 +0800 | [diff] [blame] | 115 | blks_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 116 | hblks_per_sec = blks_per_sec / 2; |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 117 | for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) { |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 118 | vblocks = get_valid_blocks(sbi, segno, sbi->segs_per_sec); |
| 119 | dist = abs(vblocks - hblks_per_sec); |
| 120 | bimodal += dist * dist; |
| 121 | |
| 122 | if (vblocks > 0 && vblocks < blks_per_sec) { |
| 123 | total_vblocks += vblocks; |
| 124 | ndirty++; |
| 125 | } |
| 126 | } |
Arnd Bergmann | 7beb428 | 2015-05-13 22:49:58 +0200 | [diff] [blame] | 127 | dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100); |
Chao Yu | 1d7e10d | 2015-09-23 09:25:43 +0800 | [diff] [blame] | 128 | si->bimodal = div64_u64(bimodal, dist); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 129 | if (si->dirty_count) |
Arnd Bergmann | 7beb428 | 2015-05-13 22:49:58 +0200 | [diff] [blame] | 130 | si->avg_vblocks = div_u64(total_vblocks, ndirty); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 131 | else |
| 132 | si->avg_vblocks = 0; |
| 133 | } |
| 134 | |
Jaegeuk Kim | 0a8165d | 2012-11-29 13:28:09 +0900 | [diff] [blame] | 135 | /* |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 136 | * This function calculates memory footprint. |
| 137 | */ |
| 138 | static void update_mem_info(struct f2fs_sb_info *sbi) |
| 139 | { |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 140 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 141 | unsigned npages; |
Jaegeuk Kim | 8c40294 | 2014-11-06 15:16:04 -0800 | [diff] [blame] | 142 | int i; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 143 | |
| 144 | if (si->base_mem) |
| 145 | goto get_cache; |
| 146 | |
| 147 | si->base_mem = sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; |
| 148 | si->base_mem += 2 * sizeof(struct f2fs_inode_info); |
| 149 | si->base_mem += sizeof(*sbi->ckpt); |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 150 | si->base_mem += sizeof(struct percpu_counter) * NR_COUNT_TYPE; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 151 | |
| 152 | /* build sm */ |
| 153 | si->base_mem += sizeof(struct f2fs_sm_info); |
| 154 | |
| 155 | /* build sit */ |
| 156 | si->base_mem += sizeof(struct sit_info); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 157 | si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); |
| 158 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
Jaegeuk Kim | 3e02574 | 2016-08-02 10:56:40 -0700 | [diff] [blame] | 159 | si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
| 160 | if (f2fs_discard_en(sbi)) |
| 161 | si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
Jaegeuk Kim | 60a3b78 | 2015-02-10 16:44:29 -0800 | [diff] [blame] | 162 | si->base_mem += SIT_VBLOCK_MAP_SIZE; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 163 | if (sbi->segs_per_sec > 1) |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 164 | si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 165 | si->base_mem += __bitmap_size(sbi, SIT_BITMAP); |
| 166 | |
| 167 | /* build free segmap */ |
| 168 | si->base_mem += sizeof(struct free_segmap_info); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 169 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
| 170 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 171 | |
| 172 | /* build curseg */ |
| 173 | si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 174 | si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 175 | |
| 176 | /* build dirty segmap */ |
| 177 | si->base_mem += sizeof(struct dirty_seglist_info); |
Jaegeuk Kim | 7cd8558 | 2014-09-23 11:23:01 -0700 | [diff] [blame] | 178 | si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); |
| 179 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 180 | |
arter97 | e1c4204 | 2014-08-06 23:22:50 +0900 | [diff] [blame] | 181 | /* build nm */ |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 182 | si->base_mem += sizeof(struct f2fs_nm_info); |
| 183 | si->base_mem += __bitmap_size(sbi, NAT_BITMAP); |
| 184 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 185 | get_cache: |
Chao Yu | 9066c6a | 2015-01-10 20:09:52 +0800 | [diff] [blame] | 186 | si->cache_mem = 0; |
| 187 | |
| 188 | /* build gc */ |
| 189 | if (sbi->gc_thread) |
| 190 | si->cache_mem += sizeof(struct f2fs_gc_kthread); |
| 191 | |
| 192 | /* build merge flush thread */ |
| 193 | if (SM_I(sbi)->cmd_control_info) |
| 194 | si->cache_mem += sizeof(struct flush_cmd_control); |
| 195 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 196 | /* free nids */ |
Chao Yu | 9066c6a | 2015-01-10 20:09:52 +0800 | [diff] [blame] | 197 | si->cache_mem += NM_I(sbi)->fcnt * sizeof(struct free_nid); |
| 198 | si->cache_mem += NM_I(sbi)->nat_cnt * sizeof(struct nat_entry); |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 199 | si->cache_mem += NM_I(sbi)->dirty_nat_cnt * |
| 200 | sizeof(struct nat_entry_set); |
| 201 | si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages); |
Jaegeuk Kim | 652be55 | 2016-05-10 19:13:50 -0700 | [diff] [blame] | 202 | for (i = 0; i <= ORPHAN_INO; i++) |
Chao Yu | 6729880 | 2014-11-18 11:18:36 +0800 | [diff] [blame] | 203 | si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); |
Jaegeuk Kim | 7441cce | 2015-12-21 19:20:15 -0800 | [diff] [blame] | 204 | si->cache_mem += atomic_read(&sbi->total_ext_tree) * |
| 205 | sizeof(struct extent_tree); |
Chao Yu | 4bf6fd9 | 2015-02-05 17:58:28 +0800 | [diff] [blame] | 206 | si->cache_mem += atomic_read(&sbi->total_ext_node) * |
| 207 | sizeof(struct extent_node); |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 208 | |
| 209 | si->page_mem = 0; |
| 210 | npages = NODE_MAPPING(sbi)->nrpages; |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 211 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 212 | npages = META_MAPPING(sbi)->nrpages; |
Kirill A. Shutemov | 09cbfea | 2016-04-01 15:29:47 +0300 | [diff] [blame] | 213 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 214 | } |
| 215 | |
| 216 | static int stat_show(struct seq_file *s, void *v) |
| 217 | { |
majianpeng | 145b04e | 2013-05-14 20:06:46 +0800 | [diff] [blame] | 218 | struct f2fs_stat_info *si; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 219 | int i = 0; |
| 220 | int j; |
| 221 | |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 222 | mutex_lock(&f2fs_stat_mutex); |
majianpeng | 145b04e | 2013-05-14 20:06:46 +0800 | [diff] [blame] | 223 | list_for_each_entry(si, &f2fs_stat_list, stat_list) { |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 224 | update_general_status(si->sbi); |
| 225 | |
Jaegeuk Kim | 8c11a53 | 2016-03-18 09:46:10 -0700 | [diff] [blame] | 226 | seq_printf(s, "\n=====[ partition info(%pg). #%d, %s]=====\n", |
| 227 | si->sbi->sb->s_bdev, i++, |
| 228 | f2fs_readonly(si->sbi->sb) ? "RO": "RW"); |
Huajun Li | 7880cee | 2012-12-31 13:59:09 +0800 | [diff] [blame] | 229 | seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", |
| 230 | si->sit_area_segs, si->nat_area_segs); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 231 | seq_printf(s, "[SSA: %d] [MAIN: %d", |
| 232 | si->ssa_area_segs, si->main_area_segs); |
| 233 | seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", |
| 234 | si->overp_segs, si->rsvd_segs); |
Yunlei He | f83a258 | 2016-08-18 21:01:18 +0800 | [diff] [blame] | 235 | if (test_opt(si->sbi, DISCARD)) |
| 236 | seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", |
| 237 | si->utilization, si->valid_count, si->discard_blks); |
| 238 | else |
| 239 | seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", |
| 240 | si->utilization, si->valid_count); |
| 241 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 242 | seq_printf(s, " - Node: %u (Inode: %u, ", |
| 243 | si->valid_node_count, si->valid_inode_count); |
| 244 | seq_printf(s, "Other: %u)\n - Data: %u\n", |
| 245 | si->valid_node_count - si->valid_inode_count, |
| 246 | si->valid_count - si->valid_node_count); |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 247 | seq_printf(s, " - Inline_xattr Inode: %u\n", |
| 248 | si->inline_xattr); |
Jaegeuk Kim | 0dbdc2a | 2013-11-26 11:08:57 +0900 | [diff] [blame] | 249 | seq_printf(s, " - Inline_data Inode: %u\n", |
| 250 | si->inline_inode); |
Jaegeuk Kim | 3289c06 | 2014-10-13 20:00:16 -0700 | [diff] [blame] | 251 | seq_printf(s, " - Inline_dentry Inode: %u\n", |
| 252 | si->inline_dir); |
Jaegeuk Kim | 652be55 | 2016-05-10 19:13:50 -0700 | [diff] [blame] | 253 | seq_printf(s, " - Orphan Inode: %u\n", |
| 254 | si->orphans); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 255 | seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", |
| 256 | si->main_area_segs, si->main_area_sections, |
| 257 | si->main_area_zones); |
| 258 | seq_printf(s, " - COLD data: %d, %d, %d\n", |
| 259 | si->curseg[CURSEG_COLD_DATA], |
| 260 | si->cursec[CURSEG_COLD_DATA], |
| 261 | si->curzone[CURSEG_COLD_DATA]); |
| 262 | seq_printf(s, " - WARM data: %d, %d, %d\n", |
| 263 | si->curseg[CURSEG_WARM_DATA], |
| 264 | si->cursec[CURSEG_WARM_DATA], |
| 265 | si->curzone[CURSEG_WARM_DATA]); |
| 266 | seq_printf(s, " - HOT data: %d, %d, %d\n", |
| 267 | si->curseg[CURSEG_HOT_DATA], |
| 268 | si->cursec[CURSEG_HOT_DATA], |
| 269 | si->curzone[CURSEG_HOT_DATA]); |
| 270 | seq_printf(s, " - Dir dnode: %d, %d, %d\n", |
| 271 | si->curseg[CURSEG_HOT_NODE], |
| 272 | si->cursec[CURSEG_HOT_NODE], |
| 273 | si->curzone[CURSEG_HOT_NODE]); |
| 274 | seq_printf(s, " - File dnode: %d, %d, %d\n", |
| 275 | si->curseg[CURSEG_WARM_NODE], |
| 276 | si->cursec[CURSEG_WARM_NODE], |
| 277 | si->curzone[CURSEG_WARM_NODE]); |
| 278 | seq_printf(s, " - Indir nodes: %d, %d, %d\n", |
| 279 | si->curseg[CURSEG_COLD_NODE], |
| 280 | si->cursec[CURSEG_COLD_NODE], |
| 281 | si->curzone[CURSEG_COLD_NODE]); |
| 282 | seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", |
| 283 | si->main_area_segs - si->dirty_count - |
| 284 | si->prefree_count - si->free_segs, |
| 285 | si->dirty_count); |
| 286 | seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", |
| 287 | si->prefree_count, si->free_segs, si->free_secs); |
Jaegeuk Kim | 42190d2 | 2016-01-09 13:45:17 -0800 | [diff] [blame] | 288 | seq_printf(s, "CP calls: %d (BG: %d)\n", |
| 289 | si->cp_count, si->bg_cp_count); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 290 | seq_printf(s, "GC calls: %d (BG: %d)\n", |
| 291 | si->call_count, si->bg_gc); |
Changman Lee | e123598 | 2014-12-23 08:37:39 +0900 | [diff] [blame] | 292 | seq_printf(s, " - data segments : %d (%d)\n", |
| 293 | si->data_segs, si->bg_data_segs); |
| 294 | seq_printf(s, " - node segments : %d (%d)\n", |
| 295 | si->node_segs, si->bg_node_segs); |
| 296 | seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, |
| 297 | si->bg_data_blks + si->bg_node_blks); |
| 298 | seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, |
| 299 | si->bg_data_blks); |
| 300 | seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, |
| 301 | si->bg_node_blks); |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 302 | seq_puts(s, "\nExtent Cache:\n"); |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 303 | seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", |
Chao Yu | 91c481f | 2015-08-19 19:12:20 +0800 | [diff] [blame] | 304 | si->hit_largest, si->hit_cached, |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 305 | si->hit_rbtree); |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 306 | seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 307 | !si->total_ext ? 0 : |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 308 | div64_u64(si->hit_total * 100, si->total_ext), |
Chao Yu | 029e13c | 2015-08-19 19:13:25 +0800 | [diff] [blame] | 309 | si->hit_total, si->total_ext); |
Jaegeuk Kim | c00ba55 | 2015-12-31 15:24:14 -0800 | [diff] [blame] | 310 | seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", |
| 311 | si->ext_tree, si->zombie_tree, si->ext_node); |
Chris Fries | 6c311ec | 2014-01-17 14:44:39 -0600 | [diff] [blame] | 312 | seq_puts(s, "\nBalancing F2FS Async:\n"); |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 313 | seq_printf(s, " - inmem: %4lld, wb_bios: %4d\n", |
Jaegeuk Kim | f573018 | 2016-05-17 16:23:36 -0700 | [diff] [blame] | 314 | si->inmem_pages, si->wb_bios); |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 315 | seq_printf(s, " - nodes: %4lld in %4d\n", |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 316 | si->ndirty_node, si->node_pages); |
Jaegeuk Kim | 0f18b46 | 2016-05-20 11:10:10 -0700 | [diff] [blame] | 317 | seq_printf(s, " - dents: %4lld in dirs:%4d (%4d)\n", |
| 318 | si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 319 | seq_printf(s, " - datas: %4lld in files:%4d\n", |
Chao Yu | 33fbd51 | 2015-12-17 17:14:44 +0800 | [diff] [blame] | 320 | si->ndirty_data, si->ndirty_files); |
Jaegeuk Kim | 523be8a | 2016-05-13 12:36:58 -0700 | [diff] [blame] | 321 | seq_printf(s, " - meta: %4lld in %4d\n", |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 322 | si->ndirty_meta, si->meta_pages); |
Chao Yu | 5bc994a | 2016-09-18 23:30:08 +0800 | [diff] [blame] | 323 | seq_printf(s, " - imeta: %4lld\n", |
| 324 | si->ndirty_imeta); |
Jaegeuk Kim | dd4e4b5 | 2015-01-07 11:09:37 -0800 | [diff] [blame] | 325 | seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", |
| 326 | si->dirty_nats, si->nats, si->dirty_sits, si->sits); |
Jaegeuk Kim | a5f42010 | 2014-03-19 13:45:52 +0900 | [diff] [blame] | 327 | seq_printf(s, " - free_nids: %9d\n", |
| 328 | si->fnids); |
Gu Zheng | 2d219c5 | 2013-07-22 16:33:32 +0800 | [diff] [blame] | 329 | seq_puts(s, "\nDistribution of User Blocks:"); |
| 330 | seq_puts(s, " [ valid | invalid | free ]\n"); |
| 331 | seq_puts(s, " ["); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 332 | |
| 333 | for (j = 0; j < si->util_valid; j++) |
Gu Zheng | 2d219c5 | 2013-07-22 16:33:32 +0800 | [diff] [blame] | 334 | seq_putc(s, '-'); |
| 335 | seq_putc(s, '|'); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 336 | |
| 337 | for (j = 0; j < si->util_invalid; j++) |
Gu Zheng | 2d219c5 | 2013-07-22 16:33:32 +0800 | [diff] [blame] | 338 | seq_putc(s, '-'); |
| 339 | seq_putc(s, '|'); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 340 | |
| 341 | for (j = 0; j < si->util_free; j++) |
Gu Zheng | 2d219c5 | 2013-07-22 16:33:32 +0800 | [diff] [blame] | 342 | seq_putc(s, '-'); |
| 343 | seq_puts(s, "]\n\n"); |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 344 | seq_printf(s, "IPU: %u blocks\n", si->inplace_count); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 345 | seq_printf(s, "SSR: %u blocks in %u segments\n", |
| 346 | si->block_count[SSR], si->segment_count[SSR]); |
| 347 | seq_printf(s, "LFS: %u blocks in %u segments\n", |
| 348 | si->block_count[LFS], si->segment_count[LFS]); |
| 349 | |
| 350 | /* segment usage info */ |
| 351 | update_sit_info(si->sbi); |
| 352 | seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", |
| 353 | si->bimodal, si->avg_vblocks); |
| 354 | |
| 355 | /* memory footprint */ |
| 356 | update_mem_info(si->sbi); |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 357 | seq_printf(s, "\nMemory: %llu KB\n", |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 358 | (si->base_mem + si->cache_mem + si->page_mem) >> 10); |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 359 | seq_printf(s, " - static: %llu KB\n", |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 360 | si->base_mem >> 10); |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 361 | seq_printf(s, " - cached: %llu KB\n", |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 362 | si->cache_mem >> 10); |
Chao Yu | 9edcdab | 2015-09-11 14:43:52 +0800 | [diff] [blame] | 363 | seq_printf(s, " - paged : %llu KB\n", |
Jaegeuk Kim | 6f0aacb | 2015-01-10 21:37:36 -0800 | [diff] [blame] | 364 | si->page_mem >> 10); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 365 | } |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 366 | mutex_unlock(&f2fs_stat_mutex); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 367 | return 0; |
| 368 | } |
| 369 | |
| 370 | static int stat_open(struct inode *inode, struct file *file) |
| 371 | { |
| 372 | return single_open(file, stat_show, inode->i_private); |
| 373 | } |
| 374 | |
| 375 | static const struct file_operations stat_fops = { |
| 376 | .open = stat_open, |
| 377 | .read = seq_read, |
| 378 | .llseek = seq_lseek, |
| 379 | .release = single_release, |
| 380 | }; |
| 381 | |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 382 | int f2fs_build_stats(struct f2fs_sb_info *sbi) |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 383 | { |
| 384 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); |
| 385 | struct f2fs_stat_info *si; |
| 386 | |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 387 | si = kzalloc(sizeof(struct f2fs_stat_info), GFP_KERNEL); |
| 388 | if (!si) |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 389 | return -ENOMEM; |
| 390 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 391 | si->all_area_segs = le32_to_cpu(raw_super->segment_count); |
| 392 | si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); |
| 393 | si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); |
| 394 | si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); |
| 395 | si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); |
| 396 | si->main_area_sections = le32_to_cpu(raw_super->section_count); |
| 397 | si->main_area_zones = si->main_area_sections / |
| 398 | le32_to_cpu(raw_super->secs_per_zone); |
| 399 | si->sbi = sbi; |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 400 | sbi->stat_info = si; |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 401 | |
Chao Yu | 5b7ee37 | 2015-09-30 17:38:48 +0800 | [diff] [blame] | 402 | atomic64_set(&sbi->total_hit_ext, 0); |
| 403 | atomic64_set(&sbi->read_hit_rbtree, 0); |
| 404 | atomic64_set(&sbi->read_hit_largest, 0); |
| 405 | atomic64_set(&sbi->read_hit_cached, 0); |
Chao Yu | 727edac | 2015-07-15 17:29:49 +0800 | [diff] [blame] | 406 | |
Chao Yu | d5e8f6c | 2015-07-15 17:28:53 +0800 | [diff] [blame] | 407 | atomic_set(&sbi->inline_xattr, 0); |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 408 | atomic_set(&sbi->inline_inode, 0); |
| 409 | atomic_set(&sbi->inline_dir, 0); |
Changman Lee | b9a2c25 | 2014-12-24 02:16:54 +0900 | [diff] [blame] | 410 | atomic_set(&sbi->inplace_count, 0); |
Chao Yu | 03e14d5 | 2014-12-08 19:08:20 +0800 | [diff] [blame] | 411 | |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 412 | mutex_lock(&f2fs_stat_mutex); |
| 413 | list_add_tail(&si->stat_list, &f2fs_stat_list); |
| 414 | mutex_unlock(&f2fs_stat_mutex); |
| 415 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 416 | return 0; |
| 417 | } |
| 418 | |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 419 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi) |
| 420 | { |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 421 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 422 | |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 423 | mutex_lock(&f2fs_stat_mutex); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 424 | list_del(&si->stat_list); |
majianpeng | 66af62c | 2013-01-14 20:08:16 +0800 | [diff] [blame] | 425 | mutex_unlock(&f2fs_stat_mutex); |
| 426 | |
Gu Zheng | 963d4f7 | 2013-07-12 14:47:11 +0800 | [diff] [blame] | 427 | kfree(si); |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 428 | } |
| 429 | |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 430 | int __init f2fs_create_root_stats(void) |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 431 | { |
Younger Liu | c524723 | 2013-12-03 20:11:46 +0800 | [diff] [blame] | 432 | struct dentry *file; |
| 433 | |
Younger Liu | 40e1ebe | 2013-12-03 21:09:29 +0800 | [diff] [blame] | 434 | f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); |
| 435 | if (!f2fs_debugfs_root) |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 436 | return -ENOMEM; |
Younger Liu | c524723 | 2013-12-03 20:11:46 +0800 | [diff] [blame] | 437 | |
Younger Liu | 40e1ebe | 2013-12-03 21:09:29 +0800 | [diff] [blame] | 438 | file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, |
Younger Liu | c524723 | 2013-12-03 20:11:46 +0800 | [diff] [blame] | 439 | NULL, &stat_fops); |
Gu Zheng | 7a6c76b | 2014-07-11 18:35:43 +0800 | [diff] [blame] | 440 | if (!file) { |
| 441 | debugfs_remove(f2fs_debugfs_root); |
| 442 | f2fs_debugfs_root = NULL; |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 443 | return -ENOMEM; |
Gu Zheng | 7a6c76b | 2014-07-11 18:35:43 +0800 | [diff] [blame] | 444 | } |
Chao Yu | 787c7b8c | 2015-10-29 09:13:04 +0800 | [diff] [blame] | 445 | |
| 446 | return 0; |
Namjae Jeon | 4589d25 | 2013-01-15 19:58:47 +0900 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | void f2fs_destroy_root_stats(void) |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 450 | { |
Younger Liu | 40e1ebe | 2013-12-03 21:09:29 +0800 | [diff] [blame] | 451 | if (!f2fs_debugfs_root) |
Younger Liu | c524723 | 2013-12-03 20:11:46 +0800 | [diff] [blame] | 452 | return; |
| 453 | |
Younger Liu | 40e1ebe | 2013-12-03 21:09:29 +0800 | [diff] [blame] | 454 | debugfs_remove_recursive(f2fs_debugfs_root); |
| 455 | f2fs_debugfs_root = NULL; |
Greg Kroah-Hartman | 902829a | 2012-11-03 06:50:41 +0900 | [diff] [blame] | 456 | } |