projects / linux-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
overlayfs: Implement splice-read
[linux-block.git] / fs / f2fs / debug.c
CommitLineData
7c1a000d 1// SPDX-License-Identifier: GPL-2.0
0a8165d7 2/*
902829aa
GKH		 3 * f2fs debugging statistics
4 *
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
7 * Copyright (c) 2012 Linux Foundation
8 * Copyright (c) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
902829aa
GKH		 9 */
10
11#include <linux/fs.h>
12#include <linux/backing-dev.h>
902829aa
GKH		 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);
98237fcd 24static DEFINE_RAW_SPINLOCK(f2fs_stat_lock);
fc7100ea
HV		 25#ifdef CONFIG_DEBUG_FS
26static struct dentry *f2fs_debugfs_root;
27#endif
28
29/*
30 * This function calculates BDF of every segments
31 */
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;
074b5ea2 42 blks_per_sec = CAP_BLKS_PER_SEC(sbi);
fc7100ea
HV		 43 hblks_per_sec = blks_per_sec / 2;
44 for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) {
45 vblocks = get_valid_blocks(sbi, segno, true);
46 dist = abs(vblocks - hblks_per_sec);
47 bimodal += dist * dist;
48
49 if (vblocks > 0 && vblocks < blks_per_sec) {
50 total_vblocks += vblocks;
51 ndirty++;
52 }
53 }
54 dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
55 si->bimodal = div64_u64(bimodal, dist);
56 if (si->dirty_count)
57 si->avg_vblocks = div_u64(total_vblocks, ndirty);
58 else
59 si->avg_vblocks = 0;
60}
902829aa 61
fc7100ea 62#ifdef CONFIG_DEBUG_FS
25ca923b 63static void update_general_status(struct f2fs_sb_info *sbi)
902829aa 64{
963d4f7d 65 struct f2fs_stat_info *si = F2FS_STAT(sbi);
04f0b2ea 66 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
902829aa
GKH		 67 int i;
68
04f0b2ea
QS		 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
e7547dac
JK		 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 */
5b7ee374 88 si->hit_largest = atomic64_read(&sbi->read_hit_largest);
e7547dac
JK		 89 si->hit_total[EX_READ] += si->hit_largest;
90
71644dff
JK		 91 /* block age extent_cache only */
92 si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks);
93
e7547dac 94 /* validation check of the segment numbers */
902829aa
GKH		 95 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
96 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
902829aa 97 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
33fbd510 98 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
2c8a4a28 99 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
5bc994a0 100 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
33fbd510
CY		 101 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
102 si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
292c196a 103 si->nquota_files = sbi->nquota_files;
0f18b462 104 si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
b4dac120 105 si->aw_cnt = atomic_read(&sbi->atomic_files);
26a28a0c 106 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
02b16d0a
CY		 107 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
108 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
36951b38
CY		 109 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
110 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
5f9abab4
JK		 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);
280fd422 114 if (SM_I(sbi)->fcc_info) {
8b8dd65f
CY		 115 si->nr_flushed =
116 atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
117 si->nr_flushing =
72691af6 118 atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
14d8d5f7
CY		 119 si->flush_list_empty =
120 llist_empty(&SM_I(sbi)->fcc_info->issue_list);
8b8dd65f 121 }
280fd422 122 if (SM_I(sbi)->dcc_info) {
8b8dd65f
CY		 123 si->nr_discarded =
124 atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
125 si->nr_discarding =
72691af6 126 atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
5f32366a
CY		 127 si->nr_discard_cmd =
128 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
d84d1cbd 129 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
8b8dd65f 130 }
261eeb9c
DJ		 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);
902829aa
GKH		 138 si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
139 si->rsvd_segs = reserved_segments(sbi);
140 si->overp_segs = overprovision_segments(sbi);
141 si->valid_count = valid_user_blocks(sbi);
f83a2584 142 si->discard_blks = discard_blocks(sbi);
902829aa
GKH		 143 si->valid_node_count = valid_node_count(sbi);
144 si->valid_inode_count = valid_inode_count(sbi);
d5e8f6c9 145 si->inline_xattr = atomic_read(&sbi->inline_xattr);
03e14d52
CY		 146 si->inline_inode = atomic_read(&sbi->inline_inode);
147 si->inline_dir = atomic_read(&sbi->inline_dir);
4c8ff709 148 si->compr_inode = atomic_read(&sbi->compr_inode);
8ec071c3 149 si->swapfile_inode = atomic_read(&sbi->swapfile_inode);
ae999bb9 150 si->compr_blocks = atomic64_read(&sbi->compr_blocks);
a00861db
JK		 151 si->append = sbi->im[APPEND_INO].ino_num;
152 si->update = sbi->im[UPDATE_INO].ino_num;
652be551 153 si->orphans = sbi->im[ORPHAN_INO].ino_num;
902829aa
GKH		 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);
7c77bf7d
JK		 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;
6ce19aff
CY		 164#ifdef CONFIG_F2FS_FS_COMPRESSION
165 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#endif
a95ba66a
JK		 170 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
171 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
dd4e4b59
JK		 172 si->sits = MAIN_SEGS(sbi);
173 si->dirty_sits = SIT_I(sbi)->dirty_sentries;
9a4ffdf5 174 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
5b0ef73c 175 si->avail_nids = NM_I(sbi)->available_nids;
9a4ffdf5 176 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
274bd9ba
CY		 177 si->io_skip_bggc = sbi->io_skip_bggc;
178 si->other_skip_bggc = sbi->other_skip_bggc;
902829aa
GKH		 179 si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
180 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
181 / 2;
182 si->util_valid = (int)(written_block_count(sbi) >>
183 sbi->log_blocks_per_seg)
184 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
185 / 2;
186 si->util_invalid = 50 - si->util_free - si->util_valid;
d0b9e42a 187 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
902829aa 188 struct curseg_info *curseg = CURSEG_I(sbi, i);
5f029c04 189
902829aa 190 si->curseg[i] = curseg->segno;
4ddb1a4d
JK		 191 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
192 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
902829aa
GKH		 193 }
194
b63e7be5
CY		 195 for (i = META_CP; i < META_MAX; i++)
196 si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
197
0759e2c1
CY		 198 for (i = 0; i < NO_CHECK_TYPE; i++) {
199 si->dirty_seg[i] = 0;
200 si->full_seg[i] = 0;
201 si->valid_blks[i] = 0;
202 }
203
204 for (i = 0; i < MAIN_SEGS(sbi); i++) {
205 int blks = get_seg_entry(sbi, i)->valid_blocks;
206 int type = get_seg_entry(sbi, i)->type;
207
208 if (!blks)
209 continue;
210
211 if (blks == sbi->blocks_per_seg)
212 si->full_seg[type]++;
213 else
214 si->dirty_seg[type]++;
215 si->valid_blks[type] += blks;
216 }
217
902829aa
GKH		 218 for (i = 0; i < 2; i++) {
219 si->segment_count[i] = sbi->segment_count[i];
220 si->block_count[i] = sbi->block_count[i];
221 }
b9a2c252
CL		 222
223 si->inplace_count = atomic_read(&sbi->inplace_count);
902829aa
GKH		 224}
225
0a8165d7 226/*
902829aa
GKH		 227 * This function calculates memory footprint.
228 */
229static void update_mem_info(struct f2fs_sb_info *sbi)
230{
963d4f7d 231 struct f2fs_stat_info *si = F2FS_STAT(sbi);
8c402946 232 int i;
902829aa
GKH		 233
234 if (si->base_mem)
235 goto get_cache;
236
70874fb3
KM		 237 /* build stat */
238 si->base_mem = sizeof(struct f2fs_stat_info);
239
240 /* build superblock */
241 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
902829aa
GKH		 242 si->base_mem += 2 * sizeof(struct f2fs_inode_info);
243 si->base_mem += sizeof(*sbi->ckpt);
244
245 /* build sm */
246 si->base_mem += sizeof(struct f2fs_sm_info);
247
248 /* build sit */
249 si->base_mem += sizeof(struct sit_info);
7cd8558b
JK		 250 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
251 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
3e025740 252 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
7d20c8ab 253 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
60a3b782 254 si->base_mem += SIT_VBLOCK_MAP_SIZE;
2c70c5e3 255 if (__is_large_section(sbi))
7cd8558b 256 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
902829aa
GKH		 257 si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
258
259 /* build free segmap */
260 si->base_mem += sizeof(struct free_segmap_info);
7cd8558b
JK		 261 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
262 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
902829aa
GKH		 263
264 /* build curseg */
265 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
09cbfeaf 266 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
902829aa
GKH		 267
268 /* build dirty segmap */
269 si->base_mem += sizeof(struct dirty_seglist_info);
7cd8558b
JK		 270 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
271 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
902829aa 272
e1c42045 273 /* build nm */
902829aa
GKH		 274 si->base_mem += sizeof(struct f2fs_nm_info);
275 si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
22ad0b6a 276 si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS);
e15d54d5
YH		 277 si->base_mem += NM_I(sbi)->nat_blocks *
278 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
4ac91242 279 si->base_mem += NM_I(sbi)->nat_blocks / 8;
586d1492 280 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
902829aa 281
9066c6a7
CY		 282get_cache:
283 si->cache_mem = 0;
284
902829aa 285 /* build gc */
9066c6a7
CY		 286 if (sbi->gc_thread)
287 si->cache_mem += sizeof(struct f2fs_gc_kthread);
288
289 /* build merge flush thread */
b01a9201 290 if (SM_I(sbi)->fcc_info)
9066c6a7 291 si->cache_mem += sizeof(struct flush_cmd_control);
5f32366a 292 if (SM_I(sbi)->dcc_info) {
0b54fb84 293 si->cache_mem += sizeof(struct discard_cmd_control);
5f32366a
CY		 294 si->cache_mem += sizeof(struct discard_cmd) *
295 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
296 }
902829aa 297
902829aa 298 /* free nids */
9a4ffdf5
CY		 299 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
300 NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
b8559dc2 301 sizeof(struct free_nid);
a95ba66a
JK		 302 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
303 sizeof(struct nat_entry);
304 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
305 sizeof(struct nat_entry_set);
b77061bf 306 for (i = 0; i < MAX_INO_ENTRY; i++)
67298804 307 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
e7547dac
JK		 308
309 for (i = 0; i < NR_EXTENT_CACHES; i++) {
310 struct extent_tree_info *eti = &sbi->extent_tree[i];
311
312 si->ext_mem[i] = atomic_read(&eti->total_ext_tree) *
7441ccef 313 sizeof(struct extent_tree);
e7547dac 314 si->ext_mem[i] += atomic_read(&eti->total_ext_node) *
4bf6fd9f 315 sizeof(struct extent_node);
e7547dac
JK		 316 si->cache_mem += si->ext_mem[i];
317 }
6f0aacbc
JK		 318
319 si->page_mem = 0;
7c77bf7d 320 if (sbi->node_inode) {
7411143f 321 unsigned long npages = NODE_MAPPING(sbi)->nrpages;
5f029c04 322
7c77bf7d
JK		 323 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
324 }
325 if (sbi->meta_inode) {
7411143f 326 unsigned long npages = META_MAPPING(sbi)->nrpages;
5f029c04 327
7c77bf7d
JK		 328 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
329 }
6ce19aff
CY		 330#ifdef CONFIG_F2FS_FS_COMPRESSION
331 if (sbi->compress_inode) {
7411143f
YL		 332 unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
333
6ce19aff
CY		 334 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
335 }
336#endif
902829aa
GKH		 337}
338
5bb9c111
YL		 339static const char *s_flag[MAX_SBI_FLAG] = {
340 [SBI_IS_DIRTY] = "fs_dirty",
341 [SBI_IS_CLOSE] = "closing",
342 [SBI_NEED_FSCK] = "need_fsck",
343 [SBI_POR_DOING] = "recovering",
344 [SBI_NEED_SB_WRITE] = "sb_dirty",
345 [SBI_NEED_CP] = "need_cp",
346 [SBI_IS_SHUTDOWN] = "shutdown",
347 [SBI_IS_RECOVERED] = "recovered",
348 [SBI_CP_DISABLED] = "cp_disabled",
349 [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick",
350 [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush",
351 [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush",
352 [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair",
353 [SBI_IS_RESIZEFS] = "resizefs",
354 [SBI_IS_FREEZING] = "freezefs",
e1bb7d3d 355 [SBI_IS_WRITABLE] = "writable",
b6d9246d
YL		 356};
357
f2e35789
YL		 358static const char *ipu_mode_names[F2FS_IPU_MAX] = {
359 [F2FS_IPU_FORCE] = "FORCE",
360 [F2FS_IPU_SSR] = "SSR",
361 [F2FS_IPU_UTIL] = "UTIL",
362 [F2FS_IPU_SSR_UTIL] = "SSR_UTIL",
363 [F2FS_IPU_FSYNC] = "FSYNC",
364 [F2FS_IPU_ASYNC] = "ASYNC",
365 [F2FS_IPU_NOCACHE] = "NOCACHE",
366 [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE",
367};
368
902829aa
GKH		 369static int stat_show(struct seq_file *s, void *v)
370{
145b04e5 371 struct f2fs_stat_info *si;
b6d9246d 372 int i = 0, j = 0;
98237fcd 373 unsigned long flags;
902829aa 374
98237fcd 375 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
145b04e5 376 list_for_each_entry(si, &f2fs_stat_list, stat_list) {
dda7d77b
YL		 377 struct f2fs_sb_info *sbi = si->sbi;
378
379 update_general_status(sbi);
902829aa 380
b6d9246d 381 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
dda7d77b
YL		 382 sbi->sb->s_bdev, i++,
383 f2fs_readonly(sbi->sb) ? "RO" : "RW",
384 is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ?
385 "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good"));
386 if (sbi->s_flag) {
b6d9246d 387 seq_puts(s, "[SBI:");
5bb9c111
YL		 388 for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG)
389 seq_printf(s, " %s", s_flag[j]);
b6d9246d
YL		 390 seq_puts(s, "]\n");
391 }
7880ceed
HL		 392 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
393 si->sit_area_segs, si->nat_area_segs);
902829aa
GKH		 394 seq_printf(s, "[SSA: %d] [MAIN: %d",
395 si->ssa_area_segs, si->main_area_segs);
396 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
397 si->overp_segs, si->rsvd_segs);
a7e679b5
JK		 398 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
399 ktime_get_boottime_seconds(),
dda7d77b 400 SIT_I(sbi)->mounted_time);
f2e35789
YL		 401
402 seq_puts(s, "Policy:\n");
403 seq_puts(s, " - IPU: [");
dda7d77b 404 if (IS_F2FS_IPU_DISABLE(sbi)) {
f2e35789
YL		 405 seq_puts(s, " DISABLE");
406 } else {
dda7d77b 407 unsigned long policy = SM_I(sbi)->ipu_policy;
f2e35789
YL		 408
409 for_each_set_bit(j, &policy, F2FS_IPU_MAX)
410 seq_printf(s, " %s", ipu_mode_names[j]);
411 }
412 seq_puts(s, " ]\n\n");
413
dda7d77b 414 if (test_opt(sbi, DISCARD))
f83a2584
YH		 415 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
416 si->utilization, si->valid_count, si->discard_blks);
417 else
418 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
419 si->utilization, si->valid_count);
420
902829aa
GKH		 421 seq_printf(s, " - Node: %u (Inode: %u, ",
422 si->valid_node_count, si->valid_inode_count);
423 seq_printf(s, "Other: %u)\n - Data: %u\n",
424 si->valid_node_count - si->valid_inode_count,
425 si->valid_count - si->valid_node_count);
d5e8f6c9
CY		 426 seq_printf(s, " - Inline_xattr Inode: %u\n",
427 si->inline_xattr);
0dbdc2ae
JK		 428 seq_printf(s, " - Inline_data Inode: %u\n",
429 si->inline_inode);
3289c061
JK		 430 seq_printf(s, " - Inline_dentry Inode: %u\n",
431 si->inline_dir);
ae999bb9 432 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
4c8ff709 433 si->compr_inode, si->compr_blocks);
8ec071c3
CY		 434 seq_printf(s, " - Swapfile Inode: %u\n",
435 si->swapfile_inode);
a00861db
JK		 436 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
437 si->orphans, si->append, si->update);
902829aa
GKH		 438 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
439 si->main_area_segs, si->main_area_sections,
440 si->main_area_zones);
0759e2c1
CY		 441 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n",
442 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
443 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 444 si->curseg[CURSEG_COLD_DATA],
445 si->cursec[CURSEG_COLD_DATA],
0759e2c1
CY		 446 si->curzone[CURSEG_COLD_DATA],
447 si->dirty_seg[CURSEG_COLD_DATA],
448 si->full_seg[CURSEG_COLD_DATA],
449 si->valid_blks[CURSEG_COLD_DATA]);
450 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 451 si->curseg[CURSEG_WARM_DATA],
452 si->cursec[CURSEG_WARM_DATA],
0759e2c1
CY		 453 si->curzone[CURSEG_WARM_DATA],
454 si->dirty_seg[CURSEG_WARM_DATA],
455 si->full_seg[CURSEG_WARM_DATA],
456 si->valid_blks[CURSEG_WARM_DATA]);
457 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 458 si->curseg[CURSEG_HOT_DATA],
459 si->cursec[CURSEG_HOT_DATA],
0759e2c1
CY		 460 si->curzone[CURSEG_HOT_DATA],
461 si->dirty_seg[CURSEG_HOT_DATA],
462 si->full_seg[CURSEG_HOT_DATA],
463 si->valid_blks[CURSEG_HOT_DATA]);
464 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 465 si->curseg[CURSEG_HOT_NODE],
466 si->cursec[CURSEG_HOT_NODE],
0759e2c1
CY		 467 si->curzone[CURSEG_HOT_NODE],
468 si->dirty_seg[CURSEG_HOT_NODE],
469 si->full_seg[CURSEG_HOT_NODE],
470 si->valid_blks[CURSEG_HOT_NODE]);
471 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 472 si->curseg[CURSEG_WARM_NODE],
473 si->cursec[CURSEG_WARM_NODE],
0759e2c1
CY		 474 si->curzone[CURSEG_WARM_NODE],
475 si->dirty_seg[CURSEG_WARM_NODE],
476 si->full_seg[CURSEG_WARM_NODE],
477 si->valid_blks[CURSEG_WARM_NODE]);
478 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n",
902829aa
GKH		 479 si->curseg[CURSEG_COLD_NODE],
480 si->cursec[CURSEG_COLD_NODE],
0759e2c1
CY		 481 si->curzone[CURSEG_COLD_NODE],
482 si->dirty_seg[CURSEG_COLD_NODE],
483 si->full_seg[CURSEG_COLD_NODE],
484 si->valid_blks[CURSEG_COLD_NODE]);
d0b9e42a
CY		 485 seq_printf(s, " - Pinned file: %8d %8d %8d\n",
486 si->curseg[CURSEG_COLD_DATA_PINNED],
487 si->cursec[CURSEG_COLD_DATA_PINNED],
488 si->curzone[CURSEG_COLD_DATA_PINNED]);
093749e2
CY		 489 seq_printf(s, " - ATGC data: %8d %8d %8d\n",
490 si->curseg[CURSEG_ALL_DATA_ATGC],
491 si->cursec[CURSEG_ALL_DATA_ATGC],
492 si->curzone[CURSEG_ALL_DATA_ATGC]);
902829aa
GKH		 493 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
494 si->main_area_segs - si->dirty_count -
495 si->prefree_count - si->free_segs,
496 si->dirty_count);
497 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
498 si->prefree_count, si->free_segs, si->free_secs);
42190d2a
JK		 499 seq_printf(s, "CP calls: %d (BG: %d)\n",
500 si->cp_count, si->bg_cp_count);
b63e7be5
CY		 501 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
502 seq_printf(s, " - sit blocks : %u\n",
503 si->meta_count[META_SIT]);
504 seq_printf(s, " - nat blocks : %u\n",
505 si->meta_count[META_NAT]);
506 seq_printf(s, " - ssa blocks : %u\n",
507 si->meta_count[META_SSA]);
7411143f
YL		 508 seq_puts(s, "CP merge:\n");
509 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt);
510 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt);
511 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt);
512 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time);
513 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time);
902829aa
GKH		 514 seq_printf(s, "GC calls: %d (BG: %d)\n",
515 si->call_count, si->bg_gc);
e1235983
CL		 516 seq_printf(s, " - data segments : %d (%d)\n",
517 si->data_segs, si->bg_data_segs);
518 seq_printf(s, " - node segments : %d (%d)\n",
519 si->node_segs, si->bg_node_segs);
7411143f 520 seq_puts(s, " - Reclaimed segs :\n");
dda7d77b
YL		 521 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]);
522 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]);
7411143f 523 seq_printf(s, " - Idle Greedy : %d\n",
dda7d77b
YL		 524 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
525 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]);
7411143f 526 seq_printf(s, " - Urgent High : %d\n",
dda7d77b
YL		 527 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
528 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]);
529 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
e1235983
CL		 530 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
531 si->bg_data_blks + si->bg_node_blks);
532 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
533 si->bg_data_blks);
534 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
535 si->bg_node_blks);
274bd9ba
CY		 536 seq_printf(s, "BG skip : IO: %u, Other: %u\n",
537 si->io_skip_bggc, si->other_skip_bggc);
e7547dac 538 seq_puts(s, "\nExtent Cache (Read):\n");
5b7ee374 539 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
e7547dac
JK		 540 si->hit_largest, si->hit_cached[EX_READ],
541 si->hit_rbtree[EX_READ]);
5b7ee374 542 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
e7547dac
JK		 543 !si->total_ext[EX_READ] ? 0 :
544 div64_u64(si->hit_total[EX_READ] * 100,
545 si->total_ext[EX_READ]),
546 si->hit_total[EX_READ], si->total_ext[EX_READ]);
c00ba554 547 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
e7547dac
JK		 548 si->ext_tree[EX_READ], si->zombie_tree[EX_READ],
549 si->ext_node[EX_READ]);
71644dff
JK		 550 seq_puts(s, "\nExtent Cache (Block Age):\n");
551 seq_printf(s, " - Allocated Data Blocks: %llu\n",
552 si->allocated_data_blocks);
553 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n",
554 si->hit_cached[EX_BLOCK_AGE],
555 si->hit_rbtree[EX_BLOCK_AGE]);
556 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
557 !si->total_ext[EX_BLOCK_AGE] ? 0 :
558 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100,
559 si->total_ext[EX_BLOCK_AGE]),
560 si->hit_total[EX_BLOCK_AGE],
561 si->total_ext[EX_BLOCK_AGE]);
562 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
563 si->ext_tree[EX_BLOCK_AGE],
564 si->zombie_tree[EX_BLOCK_AGE],
565 si->ext_node[EX_BLOCK_AGE]);
6c311ec6 566 seq_puts(s, "\nBalancing F2FS Async:\n");
02b16d0a
CY		 567 seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
568 si->nr_dio_read, si->nr_dio_write);
5f9abab4
JK		 569 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
570 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
7411143f 571 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ",
dcc9165d 572 si->nr_wb_cp_data, si->nr_wb_data,
8b8dd65f 573 si->nr_flushing, si->nr_flushed,
7411143f
YL		 574 si->flush_list_empty);
575 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
5f32366a 576 si->nr_discarding, si->nr_discarded,
d84d1cbd 577 si->nr_discard_cmd, si->undiscard_blks);
7bc155fe
JK		 578 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n",
579 si->aw_cnt, si->max_aw_cnt);
6ce19aff 580 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
35782b23 581 seq_printf(s, " - nodes: %4d in %4d\n",
902829aa 582 si->ndirty_node, si->node_pages);
35782b23 583 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
0f18b462 584 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
35782b23 585 seq_printf(s, " - datas: %4d in files:%4d\n",
33fbd510 586 si->ndirty_data, si->ndirty_files);
2c8a4a28
JK		 587 seq_printf(s, " - quota datas: %4d in quota files:%4d\n",
588 si->ndirty_qdata, si->nquota_files);
35782b23 589 seq_printf(s, " - meta: %4d in %4d\n",
902829aa 590 si->ndirty_meta, si->meta_pages);
35782b23 591 seq_printf(s, " - imeta: %4d\n",
5bc994a0 592 si->ndirty_imeta);
47c8ebcc
JK		 593 seq_printf(s, " - fsync mark: %4lld\n",
594 percpu_counter_sum_positive(
dda7d77b 595 &sbi->rf_node_block_count));
dd4e4b59
JK		 596 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
597 si->dirty_nats, si->nats, si->dirty_sits, si->sits);
5b0ef73c
JK		 598 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
599 si->free_nids, si->avail_nids, si->alloc_nids);
2d219c51
GZ		 600 seq_puts(s, "\nDistribution of User Blocks:");
601 seq_puts(s, " [ valid | invalid | free ]\n");
602 seq_puts(s, " [");
902829aa
GKH		 603
604 for (j = 0; j < si->util_valid; j++)
2d219c51
GZ		 605 seq_putc(s, '-');
606 seq_putc(s, '|');
902829aa
GKH		 607
608 for (j = 0; j < si->util_invalid; j++)
2d219c51
GZ		 609 seq_putc(s, '-');
610 seq_putc(s, '|');
902829aa
GKH		 611
612 for (j = 0; j < si->util_free; j++)
2d219c51
GZ		 613 seq_putc(s, '-');
614 seq_puts(s, "]\n\n");
b9a2c252 615 seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
902829aa
GKH		 616 seq_printf(s, "SSR: %u blocks in %u segments\n",
617 si->block_count[SSR], si->segment_count[SSR]);
618 seq_printf(s, "LFS: %u blocks in %u segments\n",
619 si->block_count[LFS], si->segment_count[LFS]);
620
621 /* segment usage info */
dda7d77b 622 f2fs_update_sit_info(sbi);
902829aa
GKH		 623 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
624 si->bimodal, si->avg_vblocks);
625
626 /* memory footprint */
dda7d77b 627 update_mem_info(sbi);
9edcdabf 628 seq_printf(s, "\nMemory: %llu KB\n",
6f0aacbc 629 (si->base_mem + si->cache_mem + si->page_mem) >> 10);
9edcdabf 630 seq_printf(s, " - static: %llu KB\n",
6f0aacbc 631 si->base_mem >> 10);
e7547dac 632 seq_printf(s, " - cached all: %llu KB\n",
6f0aacbc 633 si->cache_mem >> 10);
e7547dac
JK		 634 seq_printf(s, " - read extent cache: %llu KB\n",
635 si->ext_mem[EX_READ] >> 10);
71644dff
JK		 636 seq_printf(s, " - block age extent cache: %llu KB\n",
637 si->ext_mem[EX_BLOCK_AGE] >> 10);
9edcdabf 638 seq_printf(s, " - paged : %llu KB\n",
6f0aacbc 639 si->page_mem >> 10);
902829aa 640 }
98237fcd 641 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
902829aa
GKH		 642 return 0;
643}
644
155c62fe 645DEFINE_SHOW_ATTRIBUTE(stat);
fc7100ea 646#endif
902829aa 647
4589d25d 648int f2fs_build_stats(struct f2fs_sb_info *sbi)
902829aa
GKH		 649{
650 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
651 struct f2fs_stat_info *si;
98237fcd 652 unsigned long flags;
b63e7be5 653 int i;
902829aa 654
acbf054d 655 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
963d4f7d 656 if (!si)
902829aa
GKH		 657 return -ENOMEM;
658
902829aa
GKH		 659 si->all_area_segs = le32_to_cpu(raw_super->segment_count);
660 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
661 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
662 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
663 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
664 si->main_area_sections = le32_to_cpu(raw_super->section_count);
665 si->main_area_zones = si->main_area_sections /
666 le32_to_cpu(raw_super->secs_per_zone);
667 si->sbi = sbi;
963d4f7d 668 sbi->stat_info = si;
66af62ce 669
e7547dac
JK		 670 /* general extent cache stats */
671 for (i = 0; i < NR_EXTENT_CACHES; i++) {
672 atomic64_set(&sbi->total_hit_ext[i], 0);
673 atomic64_set(&sbi->read_hit_rbtree[i], 0);
674 atomic64_set(&sbi->read_hit_cached[i], 0);
675 }
676
677 /* read extent_cache only */
5b7ee374 678 atomic64_set(&sbi->read_hit_largest, 0);
727edac5 679
d5e8f6c9 680 atomic_set(&sbi->inline_xattr, 0);
03e14d52
CY		 681 atomic_set(&sbi->inline_inode, 0);
682 atomic_set(&sbi->inline_dir, 0);
4c8ff709 683 atomic_set(&sbi->compr_inode, 0);
ae999bb9 684 atomic64_set(&sbi->compr_blocks, 0);
8ec071c3 685 atomic_set(&sbi->swapfile_inode, 0);
b4dac120 686 atomic_set(&sbi->atomic_files, 0);
b9a2c252 687 atomic_set(&sbi->inplace_count, 0);
b63e7be5
CY		 688 for (i = META_CP; i < META_MAX; i++)
689 atomic_set(&sbi->meta_count[i], 0);
03e14d52 690
26a28a0c
JK		 691 atomic_set(&sbi->max_aw_cnt, 0);
692
98237fcd 693 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
66af62ce 694 list_add_tail(&si->stat_list, &f2fs_stat_list);
98237fcd 695 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
66af62ce 696
902829aa
GKH		 697 return 0;
698}
699
902829aa
GKH		 700void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
701{
963d4f7d 702 struct f2fs_stat_info *si = F2FS_STAT(sbi);
98237fcd 703 unsigned long flags;
902829aa 704
98237fcd 705 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
902829aa 706 list_del(&si->stat_list);
98237fcd 707 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
66af62ce 708
c8eb7024 709 kfree(si);
902829aa
GKH		 710}
711
c20e57b3 712void __init f2fs_create_root_stats(void)
4589d25d 713{
fc7100ea 714#ifdef CONFIG_DEBUG_FS
40e1ebe9 715 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
c524723e 716
491f7f71 717 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
c20e57b3 718 &stat_fops);
fc7100ea 719#endif
4589d25d
NJ		 720}
721
722void f2fs_destroy_root_stats(void)
902829aa 723{
fc7100ea 724#ifdef CONFIG_DEBUG_FS
40e1ebe9
YL		 725 debugfs_remove_recursive(f2fs_debugfs_root);
726 f2fs_debugfs_root = NULL;
fc7100ea 727#endif
902829aa 728}
Linux 6.x block layer and io_uring tree(s)