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1// SPDX-License-Identifier: GPL-2.0
2/*
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 <[email protected]>
9 */
10
11#include <linux/fs.h>
12#include <linux/backing-dev.h>
13#include <linux/f2fs_fs.h>
14#include <linux/blkdev.h>
15#include <linux/debugfs.h>
16#include <linux/seq_file.h>
17
18#include "f2fs.h"
19#include "node.h"
20#include "segment.h"
21#include "gc.h"
22
23static LIST_HEAD(f2fs_stat_list);
24static DEFINE_SPINLOCK(f2fs_stat_lock);
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;
42 blks_per_sec = CAP_BLKS_PER_SEC(sbi);
43 hblks_per_sec = blks_per_sec / 2;
44 for (segno = 0; segno < MAIN_SEGS(sbi); segno += SEGS_PER_SEC(sbi)) {
45 vblocks = get_valid_blocks(sbi, segno, true);
46 dist = abs(vblocks - hblks_per_sec);
47 bimodal += dist * dist;
48
49 if (vblocks > 0 && vblocks < blks_per_sec) {
50 total_vblocks += vblocks;
51 ndirty++;
52 }
53 }
54 dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100);
55 si->bimodal = div64_u64(bimodal, dist);
56 if (si->dirty_count)
57 si->avg_vblocks = div_u64(total_vblocks, ndirty);
58 else
59 si->avg_vblocks = 0;
60}
61
62#ifdef CONFIG_DEBUG_FS
63static void update_multidevice_stats(struct f2fs_sb_info *sbi)
64{
65 struct f2fs_stat_info *si = F2FS_STAT(sbi);
66 struct f2fs_dev_stats *dev_stats = si->dev_stats;
67 int i, j;
68
69 if (!f2fs_is_multi_device(sbi))
70 return;
71
72 memset(dev_stats, 0, sizeof(struct f2fs_dev_stats) * sbi->s_ndevs);
73 for (i = 0; i < sbi->s_ndevs; i++) {
74 unsigned int start_segno, end_segno;
75 block_t start_blk, end_blk;
76
77 if (i == 0) {
78 start_blk = MAIN_BLKADDR(sbi);
79 end_blk = FDEV(i).end_blk + 1 - SEG0_BLKADDR(sbi);
80 } else {
81 start_blk = FDEV(i).start_blk;
82 end_blk = FDEV(i).end_blk + 1;
83 }
84
85 start_segno = GET_SEGNO(sbi, start_blk);
86 end_segno = GET_SEGNO(sbi, end_blk);
87
88 for (j = start_segno; j < end_segno; j++) {
89 unsigned int seg_blks, sec_blks;
90
91 seg_blks = get_seg_entry(sbi, j)->valid_blocks;
92
93 /* update segment stats */
94 if (is_curseg(sbi, j))
95 dev_stats[i].devstats[0][DEVSTAT_INUSE]++;
96 else if (seg_blks == BLKS_PER_SEG(sbi))
97 dev_stats[i].devstats[0][DEVSTAT_FULL]++;
98 else if (seg_blks != 0)
99 dev_stats[i].devstats[0][DEVSTAT_DIRTY]++;
100 else if (!test_bit(j, FREE_I(sbi)->free_segmap))
101 dev_stats[i].devstats[0][DEVSTAT_FREE]++;
102 else
103 dev_stats[i].devstats[0][DEVSTAT_PREFREE]++;
104
105 if (!__is_large_section(sbi) ||
106 (j % SEGS_PER_SEC(sbi)) != 0)
107 continue;
108
109 sec_blks = get_sec_entry(sbi, j)->valid_blocks;
110
111 /* update section stats */
112 if (is_cursec(sbi, GET_SEC_FROM_SEG(sbi, j)))
113 dev_stats[i].devstats[1][DEVSTAT_INUSE]++;
114 else if (sec_blks == BLKS_PER_SEC(sbi))
115 dev_stats[i].devstats[1][DEVSTAT_FULL]++;
116 else if (sec_blks != 0)
117 dev_stats[i].devstats[1][DEVSTAT_DIRTY]++;
118 else if (!test_bit(GET_SEC_FROM_SEG(sbi, j),
119 FREE_I(sbi)->free_secmap))
120 dev_stats[i].devstats[1][DEVSTAT_FREE]++;
121 else
122 dev_stats[i].devstats[1][DEVSTAT_PREFREE]++;
123 }
124 }
125}
126
127static void update_general_status(struct f2fs_sb_info *sbi)
128{
129 struct f2fs_stat_info *si = F2FS_STAT(sbi);
130 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
131 int i;
132
133 /* these will be changed if online resize is done */
134 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
135 si->main_area_sections = le32_to_cpu(raw_super->section_count);
136 si->main_area_zones = si->main_area_sections /
137 le32_to_cpu(raw_super->secs_per_zone);
138
139 /* general extent cache stats */
140 for (i = 0; i < NR_EXTENT_CACHES; i++) {
141 struct extent_tree_info *eti = &sbi->extent_tree[i];
142
143 si->hit_cached[i] = atomic64_read(&sbi->read_hit_cached[i]);
144 si->hit_rbtree[i] = atomic64_read(&sbi->read_hit_rbtree[i]);
145 si->total_ext[i] = atomic64_read(&sbi->total_hit_ext[i]);
146 si->hit_total[i] = si->hit_cached[i] + si->hit_rbtree[i];
147 si->ext_tree[i] = atomic_read(&eti->total_ext_tree);
148 si->zombie_tree[i] = atomic_read(&eti->total_zombie_tree);
149 si->ext_node[i] = atomic_read(&eti->total_ext_node);
150 }
151 /* read extent_cache only */
152 si->hit_largest = atomic64_read(&sbi->read_hit_largest);
153 si->hit_total[EX_READ] += si->hit_largest;
154
155 /* block age extent_cache only */
156 si->allocated_data_blocks = atomic64_read(&sbi->allocated_data_blocks);
157
158 /* validation check of the segment numbers */
159 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
160 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
161 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
162 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
163 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
164 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
165 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
166 si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
167 si->ndonate_files = sbi->donate_files;
168 si->nquota_files = sbi->nquota_files;
169 si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
170 si->aw_cnt = atomic_read(&sbi->atomic_files);
171 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
172 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
173 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
174 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
175 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
176 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
177 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
178 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
179 if (SM_I(sbi)->fcc_info) {
180 si->nr_flushed =
181 atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
182 si->nr_flushing =
183 atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
184 si->flush_list_empty =
185 llist_empty(&SM_I(sbi)->fcc_info->issue_list);
186 }
187 if (SM_I(sbi)->dcc_info) {
188 si->nr_discarded =
189 atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
190 si->nr_discarding =
191 atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
192 si->nr_discard_cmd =
193 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
194 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
195 }
196 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt);
197 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt);
198 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt);
199 spin_lock(&sbi->cprc_info.stat_lock);
200 si->cur_ckpt_time = sbi->cprc_info.cur_time;
201 si->peak_ckpt_time = sbi->cprc_info.peak_time;
202 spin_unlock(&sbi->cprc_info.stat_lock);
203 si->total_count = BLKS_TO_SEGS(sbi, (int)sbi->user_block_count);
204 si->rsvd_segs = reserved_segments(sbi);
205 si->overp_segs = overprovision_segments(sbi);
206 si->valid_count = valid_user_blocks(sbi);
207 si->discard_blks = discard_blocks(sbi);
208 si->valid_node_count = valid_node_count(sbi);
209 si->valid_inode_count = valid_inode_count(sbi);
210 si->inline_xattr = atomic_read(&sbi->inline_xattr);
211 si->inline_inode = atomic_read(&sbi->inline_inode);
212 si->inline_dir = atomic_read(&sbi->inline_dir);
213 si->compr_inode = atomic_read(&sbi->compr_inode);
214 si->swapfile_inode = atomic_read(&sbi->swapfile_inode);
215 si->compr_blocks = atomic64_read(&sbi->compr_blocks);
216 si->append = sbi->im[APPEND_INO].ino_num;
217 si->update = sbi->im[UPDATE_INO].ino_num;
218 si->orphans = sbi->im[ORPHAN_INO].ino_num;
219 si->utilization = utilization(sbi);
220
221 si->free_segs = free_segments(sbi);
222 si->free_secs = free_sections(sbi);
223 si->prefree_count = prefree_segments(sbi);
224 si->dirty_count = dirty_segments(sbi);
225 if (sbi->node_inode)
226 si->node_pages = NODE_MAPPING(sbi)->nrpages;
227 if (sbi->meta_inode)
228 si->meta_pages = META_MAPPING(sbi)->nrpages;
229#ifdef CONFIG_F2FS_FS_COMPRESSION
230 if (sbi->compress_inode) {
231 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
232 si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
233 }
234#endif
235 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
236 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
237 si->sits = MAIN_SEGS(sbi);
238 si->dirty_sits = SIT_I(sbi)->dirty_sentries;
239 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
240 si->avail_nids = NM_I(sbi)->available_nids;
241 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
242 si->io_skip_bggc = sbi->io_skip_bggc;
243 si->other_skip_bggc = sbi->other_skip_bggc;
244 si->util_free = (int)(BLKS_TO_SEGS(sbi, free_user_blocks(sbi)))
245 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
246 / 2;
247 si->util_valid = (int)(BLKS_TO_SEGS(sbi, written_block_count(sbi)))
248 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
249 / 2;
250 si->util_invalid = 50 - si->util_free - si->util_valid;
251 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
252 struct curseg_info *curseg = CURSEG_I(sbi, i);
253
254 si->blkoff[i] = curseg->next_blkoff;
255 si->curseg[i] = curseg->segno;
256 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
257 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
258 }
259
260 for (i = META_CP; i < META_MAX; i++)
261 si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
262
263 for (i = 0; i < NO_CHECK_TYPE; i++) {
264 si->dirty_seg[i] = 0;
265 si->full_seg[i] = 0;
266 si->valid_blks[i] = 0;
267 }
268
269 for (i = 0; i < MAIN_SEGS(sbi); i++) {
270 int blks = get_seg_entry(sbi, i)->valid_blocks;
271 int type = get_seg_entry(sbi, i)->type;
272
273 if (!blks)
274 continue;
275
276 if (blks == BLKS_PER_SEG(sbi))
277 si->full_seg[type]++;
278 else
279 si->dirty_seg[type]++;
280 si->valid_blks[type] += blks;
281 }
282
283 update_multidevice_stats(sbi);
284
285 for (i = 0; i < MAX_CALL_TYPE; i++)
286 si->cp_call_count[i] = atomic_read(&sbi->cp_call_count[i]);
287
288 for (i = 0; i < 2; i++) {
289 si->segment_count[i] = sbi->segment_count[i];
290 si->block_count[i] = sbi->block_count[i];
291 }
292
293 si->inplace_count = atomic_read(&sbi->inplace_count);
294}
295
296/*
297 * This function calculates memory footprint.
298 */
299static void update_mem_info(struct f2fs_sb_info *sbi)
300{
301 struct f2fs_stat_info *si = F2FS_STAT(sbi);
302 int i;
303
304 if (si->base_mem)
305 goto get_cache;
306
307 /* build stat */
308 si->base_mem = sizeof(struct f2fs_stat_info);
309
310 /* build superblock */
311 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
312 si->base_mem += 2 * sizeof(struct f2fs_inode_info);
313 si->base_mem += sizeof(*sbi->ckpt);
314
315 /* build sm */
316 si->base_mem += sizeof(struct f2fs_sm_info);
317
318 /* build sit */
319 si->base_mem += sizeof(struct sit_info);
320 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
321 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
322 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
323 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
324 si->base_mem += SIT_VBLOCK_MAP_SIZE;
325 if (__is_large_section(sbi))
326 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
327 si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
328
329 /* build free segmap */
330 si->base_mem += sizeof(struct free_segmap_info);
331 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
332 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
333
334 /* build curseg */
335 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
336 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
337
338 /* build dirty segmap */
339 si->base_mem += sizeof(struct dirty_seglist_info);
340 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
341 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
342
343 /* build nm */
344 si->base_mem += sizeof(struct f2fs_nm_info);
345 si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
346 si->base_mem += F2FS_BLK_TO_BYTES(NM_I(sbi)->nat_bits_blocks);
347 si->base_mem += NM_I(sbi)->nat_blocks *
348 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
349 si->base_mem += NM_I(sbi)->nat_blocks / 8;
350 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
351
352get_cache:
353 si->cache_mem = 0;
354
355 /* build merge flush thread */
356 if (SM_I(sbi)->fcc_info)
357 si->cache_mem += sizeof(struct flush_cmd_control);
358 if (SM_I(sbi)->dcc_info) {
359 si->cache_mem += sizeof(struct discard_cmd_control);
360 si->cache_mem += sizeof(struct discard_cmd) *
361 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
362 }
363
364 /* free nids */
365 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
366 NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
367 sizeof(struct free_nid);
368 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
369 sizeof(struct nat_entry);
370 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
371 sizeof(struct nat_entry_set);
372 for (i = 0; i < MAX_INO_ENTRY; i++)
373 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
374
375 for (i = 0; i < NR_EXTENT_CACHES; i++) {
376 struct extent_tree_info *eti = &sbi->extent_tree[i];
377
378 si->ext_mem[i] = atomic_read(&eti->total_ext_tree) *
379 sizeof(struct extent_tree);
380 si->ext_mem[i] += atomic_read(&eti->total_ext_node) *
381 sizeof(struct extent_node);
382 si->cache_mem += si->ext_mem[i];
383 }
384
385 si->page_mem = 0;
386 if (sbi->node_inode) {
387 unsigned long npages = NODE_MAPPING(sbi)->nrpages;
388
389 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
390 }
391 if (sbi->meta_inode) {
392 unsigned long npages = META_MAPPING(sbi)->nrpages;
393
394 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
395 }
396#ifdef CONFIG_F2FS_FS_COMPRESSION
397 if (sbi->compress_inode) {
398 unsigned long npages = COMPRESS_MAPPING(sbi)->nrpages;
399
400 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
401 }
402#endif
403}
404
405static const char *s_flag[MAX_SBI_FLAG] = {
406 [SBI_IS_DIRTY] = "fs_dirty",
407 [SBI_IS_CLOSE] = "closing",
408 [SBI_NEED_FSCK] = "need_fsck",
409 [SBI_POR_DOING] = "recovering",
410 [SBI_NEED_SB_WRITE] = "sb_dirty",
411 [SBI_NEED_CP] = "need_cp",
412 [SBI_IS_SHUTDOWN] = "shutdown",
413 [SBI_IS_RECOVERED] = "recovered",
414 [SBI_CP_DISABLED] = "cp_disabled",
415 [SBI_CP_DISABLED_QUICK] = "cp_disabled_quick",
416 [SBI_QUOTA_NEED_FLUSH] = "quota_need_flush",
417 [SBI_QUOTA_SKIP_FLUSH] = "quota_skip_flush",
418 [SBI_QUOTA_NEED_REPAIR] = "quota_need_repair",
419 [SBI_IS_RESIZEFS] = "resizefs",
420 [SBI_IS_FREEZING] = "freezefs",
421 [SBI_IS_WRITABLE] = "writable",
422 [SBI_ENABLE_CHECKPOINT] = "enable_checkpoint",
423};
424
425static const char *ipu_mode_names[F2FS_IPU_MAX] = {
426 [F2FS_IPU_FORCE] = "FORCE",
427 [F2FS_IPU_SSR] = "SSR",
428 [F2FS_IPU_UTIL] = "UTIL",
429 [F2FS_IPU_SSR_UTIL] = "SSR_UTIL",
430 [F2FS_IPU_FSYNC] = "FSYNC",
431 [F2FS_IPU_ASYNC] = "ASYNC",
432 [F2FS_IPU_NOCACHE] = "NOCACHE",
433 [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE",
434};
435
436static int stat_show(struct seq_file *s, void *v)
437{
438 struct f2fs_stat_info *si;
439 int i = 0, j = 0;
440
441 spin_lock(&f2fs_stat_lock);
442 list_for_each_entry(si, &f2fs_stat_list, stat_list) {
443 struct f2fs_sb_info *sbi = si->sbi;
444
445 update_general_status(sbi);
446
447 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
448 sbi->sb->s_bdev, i++,
449 f2fs_readonly(sbi->sb) ? "RO" : "RW",
450 is_set_ckpt_flags(sbi, CP_DISABLED_FLAG) ?
451 "Disabled" : (f2fs_cp_error(sbi) ? "Error" : "Good"));
452 if (sbi->s_flag) {
453 seq_puts(s, "[SBI:");
454 for_each_set_bit(j, &sbi->s_flag, MAX_SBI_FLAG)
455 seq_printf(s, " %s", s_flag[j]);
456 seq_puts(s, "]\n");
457 }
458 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
459 si->sit_area_segs, si->nat_area_segs);
460 seq_printf(s, "[SSA: %d] [MAIN: %d",
461 si->ssa_area_segs, si->main_area_segs);
462 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
463 si->overp_segs, si->rsvd_segs);
464 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
465 ktime_get_boottime_seconds(),
466 SIT_I(sbi)->mounted_time);
467
468 seq_puts(s, "Policy:\n");
469 seq_puts(s, " - IPU: [");
470 if (IS_F2FS_IPU_DISABLE(sbi)) {
471 seq_puts(s, " DISABLE");
472 } else {
473 unsigned long policy = SM_I(sbi)->ipu_policy;
474
475 for_each_set_bit(j, &policy, F2FS_IPU_MAX)
476 seq_printf(s, " %s", ipu_mode_names[j]);
477 }
478 seq_puts(s, " ]\n\n");
479
480 if (test_opt(sbi, DISCARD))
481 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
482 si->utilization, si->valid_count, si->discard_blks);
483 else
484 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
485 si->utilization, si->valid_count);
486
487 seq_printf(s, " - Node: %u (Inode: %u, ",
488 si->valid_node_count, si->valid_inode_count);
489 seq_printf(s, "Other: %u)\n - Data: %u\n",
490 si->valid_node_count - si->valid_inode_count,
491 si->valid_count - si->valid_node_count);
492 seq_printf(s, " - Inline_xattr Inode: %u\n",
493 si->inline_xattr);
494 seq_printf(s, " - Inline_data Inode: %u\n",
495 si->inline_inode);
496 seq_printf(s, " - Inline_dentry Inode: %u\n",
497 si->inline_dir);
498 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
499 si->compr_inode, si->compr_blocks);
500 seq_printf(s, " - Swapfile Inode: %u\n",
501 si->swapfile_inode);
502 seq_printf(s, " - Donate Inode: %u\n",
503 si->ndonate_files);
504 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
505 si->orphans, si->append, si->update);
506 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
507 si->main_area_segs, si->main_area_sections,
508 si->main_area_zones);
509 seq_printf(s, " TYPE %8s %8s %8s %8s %10s %10s %10s\n",
510 "blkoff", "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
511 seq_printf(s, " - COLD data: %8d %8d %8d %8d %10u %10u %10u\n",
512 si->blkoff[CURSEG_COLD_DATA],
513 si->curseg[CURSEG_COLD_DATA],
514 si->cursec[CURSEG_COLD_DATA],
515 si->curzone[CURSEG_COLD_DATA],
516 si->dirty_seg[CURSEG_COLD_DATA],
517 si->full_seg[CURSEG_COLD_DATA],
518 si->valid_blks[CURSEG_COLD_DATA]);
519 seq_printf(s, " - WARM data: %8d %8d %8d %8d %10u %10u %10u\n",
520 si->blkoff[CURSEG_WARM_DATA],
521 si->curseg[CURSEG_WARM_DATA],
522 si->cursec[CURSEG_WARM_DATA],
523 si->curzone[CURSEG_WARM_DATA],
524 si->dirty_seg[CURSEG_WARM_DATA],
525 si->full_seg[CURSEG_WARM_DATA],
526 si->valid_blks[CURSEG_WARM_DATA]);
527 seq_printf(s, " - HOT data: %8d %8d %8d %8d %10u %10u %10u\n",
528 si->blkoff[CURSEG_HOT_DATA],
529 si->curseg[CURSEG_HOT_DATA],
530 si->cursec[CURSEG_HOT_DATA],
531 si->curzone[CURSEG_HOT_DATA],
532 si->dirty_seg[CURSEG_HOT_DATA],
533 si->full_seg[CURSEG_HOT_DATA],
534 si->valid_blks[CURSEG_HOT_DATA]);
535 seq_printf(s, " - Dir dnode: %8d %8d %8d %8d %10u %10u %10u\n",
536 si->blkoff[CURSEG_HOT_NODE],
537 si->curseg[CURSEG_HOT_NODE],
538 si->cursec[CURSEG_HOT_NODE],
539 si->curzone[CURSEG_HOT_NODE],
540 si->dirty_seg[CURSEG_HOT_NODE],
541 si->full_seg[CURSEG_HOT_NODE],
542 si->valid_blks[CURSEG_HOT_NODE]);
543 seq_printf(s, " - File dnode: %8d %8d %8d %8d %10u %10u %10u\n",
544 si->blkoff[CURSEG_WARM_NODE],
545 si->curseg[CURSEG_WARM_NODE],
546 si->cursec[CURSEG_WARM_NODE],
547 si->curzone[CURSEG_WARM_NODE],
548 si->dirty_seg[CURSEG_WARM_NODE],
549 si->full_seg[CURSEG_WARM_NODE],
550 si->valid_blks[CURSEG_WARM_NODE]);
551 seq_printf(s, " - Indir nodes: %8d %8d %8d %8d %10u %10u %10u\n",
552 si->blkoff[CURSEG_COLD_NODE],
553 si->curseg[CURSEG_COLD_NODE],
554 si->cursec[CURSEG_COLD_NODE],
555 si->curzone[CURSEG_COLD_NODE],
556 si->dirty_seg[CURSEG_COLD_NODE],
557 si->full_seg[CURSEG_COLD_NODE],
558 si->valid_blks[CURSEG_COLD_NODE]);
559 seq_printf(s, " - Pinned file: %8d %8d %8d %8d\n",
560 si->blkoff[CURSEG_COLD_DATA_PINNED],
561 si->curseg[CURSEG_COLD_DATA_PINNED],
562 si->cursec[CURSEG_COLD_DATA_PINNED],
563 si->curzone[CURSEG_COLD_DATA_PINNED]);
564 seq_printf(s, " - ATGC data: %8d %8d %8d %8d\n",
565 si->blkoff[CURSEG_ALL_DATA_ATGC],
566 si->curseg[CURSEG_ALL_DATA_ATGC],
567 si->cursec[CURSEG_ALL_DATA_ATGC],
568 si->curzone[CURSEG_ALL_DATA_ATGC]);
569 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
570 si->main_area_segs - si->dirty_count -
571 si->prefree_count - si->free_segs,
572 si->dirty_count);
573 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
574 si->prefree_count, si->free_segs, si->free_secs);
575 if (f2fs_is_multi_device(sbi)) {
576 seq_puts(s, "Multidevice stats:\n");
577 seq_printf(s, " [seg: %8s %8s %8s %8s %8s]",
578 "inuse", "dirty", "full", "free", "prefree");
579 if (__is_large_section(sbi))
580 seq_printf(s, " [sec: %8s %8s %8s %8s %8s]\n",
581 "inuse", "dirty", "full", "free", "prefree");
582 else
583 seq_puts(s, "\n");
584
585 for (i = 0; i < sbi->s_ndevs; i++) {
586 seq_printf(s, " #%-2d %8u %8u %8u %8u %8u", i,
587 si->dev_stats[i].devstats[0][DEVSTAT_INUSE],
588 si->dev_stats[i].devstats[0][DEVSTAT_DIRTY],
589 si->dev_stats[i].devstats[0][DEVSTAT_FULL],
590 si->dev_stats[i].devstats[0][DEVSTAT_FREE],
591 si->dev_stats[i].devstats[0][DEVSTAT_PREFREE]);
592 if (!__is_large_section(sbi)) {
593 seq_puts(s, "\n");
594 continue;
595 }
596 seq_printf(s, " %8u %8u %8u %8u %8u\n",
597 si->dev_stats[i].devstats[1][DEVSTAT_INUSE],
598 si->dev_stats[i].devstats[1][DEVSTAT_DIRTY],
599 si->dev_stats[i].devstats[1][DEVSTAT_FULL],
600 si->dev_stats[i].devstats[1][DEVSTAT_FREE],
601 si->dev_stats[i].devstats[1][DEVSTAT_PREFREE]);
602 }
603 seq_puts(s, "\n");
604 }
605 seq_printf(s, "CP calls: %d (BG: %d)\n",
606 si->cp_call_count[TOTAL_CALL],
607 si->cp_call_count[BACKGROUND]);
608 seq_printf(s, "CP count: %d\n", si->cp_count);
609 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
610 seq_printf(s, " - sit blocks : %u\n",
611 si->meta_count[META_SIT]);
612 seq_printf(s, " - nat blocks : %u\n",
613 si->meta_count[META_NAT]);
614 seq_printf(s, " - ssa blocks : %u\n",
615 si->meta_count[META_SSA]);
616 seq_puts(s, "CP merge:\n");
617 seq_printf(s, " - Queued : %4d\n", si->nr_queued_ckpt);
618 seq_printf(s, " - Issued : %4d\n", si->nr_issued_ckpt);
619 seq_printf(s, " - Total : %4d\n", si->nr_total_ckpt);
620 seq_printf(s, " - Cur time : %4d(ms)\n", si->cur_ckpt_time);
621 seq_printf(s, " - Peak time : %4d(ms)\n", si->peak_ckpt_time);
622 seq_printf(s, "GC calls: %d (gc_thread: %d)\n",
623 si->gc_call_count[BACKGROUND] +
624 si->gc_call_count[FOREGROUND],
625 si->gc_call_count[BACKGROUND]);
626 if (__is_large_section(sbi)) {
627 seq_printf(s, " - data sections : %d (BG: %d)\n",
628 si->gc_secs[DATA][BG_GC] + si->gc_secs[DATA][FG_GC],
629 si->gc_secs[DATA][BG_GC]);
630 seq_printf(s, " - node sections : %d (BG: %d)\n",
631 si->gc_secs[NODE][BG_GC] + si->gc_secs[NODE][FG_GC],
632 si->gc_secs[NODE][BG_GC]);
633 }
634 seq_printf(s, " - data segments : %d (BG: %d)\n",
635 si->gc_segs[DATA][BG_GC] + si->gc_segs[DATA][FG_GC],
636 si->gc_segs[DATA][BG_GC]);
637 seq_printf(s, " - node segments : %d (BG: %d)\n",
638 si->gc_segs[NODE][BG_GC] + si->gc_segs[NODE][FG_GC],
639 si->gc_segs[NODE][BG_GC]);
640 seq_puts(s, " - Reclaimed segs :\n");
641 seq_printf(s, " - Normal : %d\n", sbi->gc_reclaimed_segs[GC_NORMAL]);
642 seq_printf(s, " - Idle CB : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_CB]);
643 seq_printf(s, " - Idle Greedy : %d\n",
644 sbi->gc_reclaimed_segs[GC_IDLE_GREEDY]);
645 seq_printf(s, " - Idle AT : %d\n", sbi->gc_reclaimed_segs[GC_IDLE_AT]);
646 seq_printf(s, " - Urgent High : %d\n",
647 sbi->gc_reclaimed_segs[GC_URGENT_HIGH]);
648 seq_printf(s, " - Urgent Mid : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_MID]);
649 seq_printf(s, " - Urgent Low : %d\n", sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
650 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
651 si->bg_data_blks + si->bg_node_blks);
652 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
653 si->bg_data_blks);
654 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
655 si->bg_node_blks);
656 seq_printf(s, "BG skip : IO: %u, Other: %u\n",
657 si->io_skip_bggc, si->other_skip_bggc);
658 seq_printf(s, "defrag blocks : %u\n", si->defrag_blks);
659 seq_puts(s, "\nExtent Cache (Read):\n");
660 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
661 si->hit_largest, si->hit_cached[EX_READ],
662 si->hit_rbtree[EX_READ]);
663 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
664 !si->total_ext[EX_READ] ? 0 :
665 div64_u64(si->hit_total[EX_READ] * 100,
666 si->total_ext[EX_READ]),
667 si->hit_total[EX_READ], si->total_ext[EX_READ]);
668 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
669 si->ext_tree[EX_READ], si->zombie_tree[EX_READ],
670 si->ext_node[EX_READ]);
671 seq_puts(s, "\nExtent Cache (Block Age):\n");
672 seq_printf(s, " - Allocated Data Blocks: %llu\n",
673 si->allocated_data_blocks);
674 seq_printf(s, " - Hit Count: L1:%llu L2:%llu\n",
675 si->hit_cached[EX_BLOCK_AGE],
676 si->hit_rbtree[EX_BLOCK_AGE]);
677 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
678 !si->total_ext[EX_BLOCK_AGE] ? 0 :
679 div64_u64(si->hit_total[EX_BLOCK_AGE] * 100,
680 si->total_ext[EX_BLOCK_AGE]),
681 si->hit_total[EX_BLOCK_AGE],
682 si->total_ext[EX_BLOCK_AGE]);
683 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
684 si->ext_tree[EX_BLOCK_AGE],
685 si->zombie_tree[EX_BLOCK_AGE],
686 si->ext_node[EX_BLOCK_AGE]);
687 seq_puts(s, "\nBalancing F2FS Async:\n");
688 seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
689 si->nr_dio_read, si->nr_dio_write);
690 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
691 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
692 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), ",
693 si->nr_wb_cp_data, si->nr_wb_data,
694 si->nr_flushing, si->nr_flushed,
695 si->flush_list_empty);
696 seq_printf(s, "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
697 si->nr_discarding, si->nr_discarded,
698 si->nr_discard_cmd, si->undiscard_blks);
699 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n",
700 si->aw_cnt, si->max_aw_cnt);
701 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
702 seq_printf(s, " - nodes: %4d in %4d\n",
703 si->ndirty_node, si->node_pages);
704 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
705 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
706 seq_printf(s, " - data: %4d in files:%4d\n",
707 si->ndirty_data, si->ndirty_files);
708 seq_printf(s, " - quota data: %4d in quota files:%4d\n",
709 si->ndirty_qdata, si->nquota_files);
710 seq_printf(s, " - meta: %4d in %4d\n",
711 si->ndirty_meta, si->meta_pages);
712 seq_printf(s, " - imeta: %4d\n",
713 si->ndirty_imeta);
714 seq_printf(s, " - fsync mark: %4lld\n",
715 percpu_counter_sum_positive(
716 &sbi->rf_node_block_count));
717 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
718 si->dirty_nats, si->nats, si->dirty_sits, si->sits);
719 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
720 si->free_nids, si->avail_nids, si->alloc_nids);
721 seq_puts(s, "\nDistribution of User Blocks:");
722 seq_puts(s, " [ valid | invalid | free ]\n");
723 seq_puts(s, " [");
724
725 for (j = 0; j < si->util_valid; j++)
726 seq_putc(s, '-');
727 seq_putc(s, '|');
728
729 for (j = 0; j < si->util_invalid; j++)
730 seq_putc(s, '-');
731 seq_putc(s, '|');
732
733 for (j = 0; j < si->util_free; j++)
734 seq_putc(s, '-');
735 seq_puts(s, "]\n\n");
736 seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
737 seq_printf(s, "SSR: %u blocks in %u segments\n",
738 si->block_count[SSR], si->segment_count[SSR]);
739 seq_printf(s, "LFS: %u blocks in %u segments\n",
740 si->block_count[LFS], si->segment_count[LFS]);
741
742 /* segment usage info */
743 f2fs_update_sit_info(sbi);
744 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
745 si->bimodal, si->avg_vblocks);
746
747 /* memory footprint */
748 update_mem_info(sbi);
749 seq_printf(s, "\nMemory: %llu KB\n",
750 (si->base_mem + si->cache_mem + si->page_mem) >> 10);
751 seq_printf(s, " - static: %llu KB\n",
752 si->base_mem >> 10);
753 seq_printf(s, " - cached all: %llu KB\n",
754 si->cache_mem >> 10);
755 seq_printf(s, " - read extent cache: %llu KB\n",
756 si->ext_mem[EX_READ] >> 10);
757 seq_printf(s, " - block age extent cache: %llu KB\n",
758 si->ext_mem[EX_BLOCK_AGE] >> 10);
759 seq_printf(s, " - paged : %llu KB\n",
760 si->page_mem >> 10);
761 }
762 spin_unlock(&f2fs_stat_lock);
763 return 0;
764}
765
766DEFINE_SHOW_ATTRIBUTE(stat);
767#endif
768
769int f2fs_build_stats(struct f2fs_sb_info *sbi)
770{
771 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
772 struct f2fs_stat_info *si;
773 struct f2fs_dev_stats *dev_stats;
774 int i;
775
776 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
777 if (!si)
778 return -ENOMEM;
779
780 dev_stats = f2fs_kzalloc(sbi, sizeof(struct f2fs_dev_stats) *
781 sbi->s_ndevs, GFP_KERNEL);
782 if (!dev_stats) {
783 kfree(si);
784 return -ENOMEM;
785 }
786
787 si->dev_stats = dev_stats;
788
789 si->all_area_segs = le32_to_cpu(raw_super->segment_count);
790 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
791 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
792 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
793 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
794 si->main_area_sections = le32_to_cpu(raw_super->section_count);
795 si->main_area_zones = si->main_area_sections /
796 le32_to_cpu(raw_super->secs_per_zone);
797 si->sbi = sbi;
798 sbi->stat_info = si;
799
800 /* general extent cache stats */
801 for (i = 0; i < NR_EXTENT_CACHES; i++) {
802 atomic64_set(&sbi->total_hit_ext[i], 0);
803 atomic64_set(&sbi->read_hit_rbtree[i], 0);
804 atomic64_set(&sbi->read_hit_cached[i], 0);
805 }
806
807 /* read extent_cache only */
808 atomic64_set(&sbi->read_hit_largest, 0);
809
810 atomic_set(&sbi->inline_xattr, 0);
811 atomic_set(&sbi->inline_inode, 0);
812 atomic_set(&sbi->inline_dir, 0);
813 atomic_set(&sbi->compr_inode, 0);
814 atomic64_set(&sbi->compr_blocks, 0);
815 atomic_set(&sbi->swapfile_inode, 0);
816 atomic_set(&sbi->atomic_files, 0);
817 atomic_set(&sbi->inplace_count, 0);
818 for (i = META_CP; i < META_MAX; i++)
819 atomic_set(&sbi->meta_count[i], 0);
820 for (i = 0; i < MAX_CALL_TYPE; i++)
821 atomic_set(&sbi->cp_call_count[i], 0);
822
823 atomic_set(&sbi->max_aw_cnt, 0);
824
825 spin_lock(&f2fs_stat_lock);
826 list_add_tail(&si->stat_list, &f2fs_stat_list);
827 spin_unlock(&f2fs_stat_lock);
828
829 return 0;
830}
831
832void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
833{
834 struct f2fs_stat_info *si = F2FS_STAT(sbi);
835
836 spin_lock(&f2fs_stat_lock);
837 list_del(&si->stat_list);
838 spin_unlock(&f2fs_stat_lock);
839
840 kfree(si->dev_stats);
841 kfree(si);
842}
843
844void __init f2fs_create_root_stats(void)
845{
846#ifdef CONFIG_DEBUG_FS
847 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
848
849 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
850 &stat_fops);
851#endif
852}
853
854void f2fs_destroy_root_stats(void)
855{
856#ifdef CONFIG_DEBUG_FS
857 debugfs_remove_recursive(f2fs_debugfs_root);
858 f2fs_debugfs_root = NULL;
859#endif
860}