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 <gregkh@linuxfoundation.org>
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
23 static LIST_HEAD(f2fs_stat_list);
24 static DEFINE_RAW_SPINLOCK(f2fs_stat_lock);
25 #ifdef CONFIG_DEBUG_FS
26 static struct dentry *f2fs_debugfs_root;
27 #endif
28
29 /*
30 * This function calculates BDF of every segments
31 */
f2fs_update_sit_info(struct f2fs_sb_info * sbi)32 void 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 += 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 }
61
62 #ifdef CONFIG_DEBUG_FS
update_general_status(struct f2fs_sb_info * sbi)63 static void update_general_status(struct f2fs_sb_info *sbi)
64 {
65 struct f2fs_stat_info *si = F2FS_STAT(sbi);
66 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
67 int i;
68
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
75 /* validation check of the segment numbers */
76 si->hit_largest = atomic64_read(&sbi->read_hit_largest);
77 si->hit_cached = atomic64_read(&sbi->read_hit_cached);
78 si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree);
79 si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree;
80 si->total_ext = atomic64_read(&sbi->total_hit_ext);
81 si->ext_tree = atomic_read(&sbi->total_ext_tree);
82 si->zombie_tree = atomic_read(&sbi->total_zombie_tree);
83 si->ext_node = atomic_read(&sbi->total_ext_node);
84 si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES);
85 si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS);
86 si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META);
87 si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA);
88 si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA);
89 si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA);
90 si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE];
91 si->ndirty_files = sbi->ndirty_inode[FILE_INODE];
92 si->nquota_files = sbi->nquota_files;
93 si->ndirty_all = sbi->ndirty_inode[DIRTY_META];
94 si->aw_cnt = atomic_read(&sbi->atomic_files);
95 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
96 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
97 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
98 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
99 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
100 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
101 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
102 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
103 if (SM_I(sbi)->fcc_info) {
104 si->nr_flushed =
105 atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
106 si->nr_flushing =
107 atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
108 si->flush_list_empty =
109 llist_empty(&SM_I(sbi)->fcc_info->issue_list);
110 }
111 if (SM_I(sbi)->dcc_info) {
112 si->nr_discarded =
113 atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
114 si->nr_discarding =
115 atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
116 si->nr_discard_cmd =
117 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
118 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
119 }
120 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt);
121 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt);
122 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt);
123 spin_lock(&sbi->cprc_info.stat_lock);
124 si->cur_ckpt_time = sbi->cprc_info.cur_time;
125 si->peak_ckpt_time = sbi->cprc_info.peak_time;
126 spin_unlock(&sbi->cprc_info.stat_lock);
127 si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
128 si->rsvd_segs = reserved_segments(sbi);
129 si->overp_segs = overprovision_segments(sbi);
130 si->valid_count = valid_user_blocks(sbi);
131 si->discard_blks = discard_blocks(sbi);
132 si->valid_node_count = valid_node_count(sbi);
133 si->valid_inode_count = valid_inode_count(sbi);
134 si->inline_xattr = atomic_read(&sbi->inline_xattr);
135 si->inline_inode = atomic_read(&sbi->inline_inode);
136 si->inline_dir = atomic_read(&sbi->inline_dir);
137 si->compr_inode = atomic_read(&sbi->compr_inode);
138 si->swapfile_inode = atomic_read(&sbi->swapfile_inode);
139 si->compr_blocks = atomic64_read(&sbi->compr_blocks);
140 si->append = sbi->im[APPEND_INO].ino_num;
141 si->update = sbi->im[UPDATE_INO].ino_num;
142 si->orphans = sbi->im[ORPHAN_INO].ino_num;
143 si->utilization = utilization(sbi);
144
145 si->free_segs = free_segments(sbi);
146 si->free_secs = free_sections(sbi);
147 si->prefree_count = prefree_segments(sbi);
148 si->dirty_count = dirty_segments(sbi);
149 if (sbi->node_inode)
150 si->node_pages = NODE_MAPPING(sbi)->nrpages;
151 if (sbi->meta_inode)
152 si->meta_pages = META_MAPPING(sbi)->nrpages;
153 #ifdef CONFIG_F2FS_FS_COMPRESSION
154 if (sbi->compress_inode) {
155 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
156 si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
157 }
158 #endif
159 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
160 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
161 si->sits = MAIN_SEGS(sbi);
162 si->dirty_sits = SIT_I(sbi)->dirty_sentries;
163 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
164 si->avail_nids = NM_I(sbi)->available_nids;
165 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
166 si->io_skip_bggc = sbi->io_skip_bggc;
167 si->other_skip_bggc = sbi->other_skip_bggc;
168 si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
169 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
170 / 2;
171 si->util_valid = (int)(written_block_count(sbi) >>
172 sbi->log_blocks_per_seg)
173 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
174 / 2;
175 si->util_invalid = 50 - si->util_free - si->util_valid;
176 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
177 struct curseg_info *curseg = CURSEG_I(sbi, i);
178
179 si->curseg[i] = curseg->segno;
180 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
181 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
182 }
183
184 for (i = META_CP; i < META_MAX; i++)
185 si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
186
187 for (i = 0; i < NO_CHECK_TYPE; i++) {
188 si->dirty_seg[i] = 0;
189 si->full_seg[i] = 0;
190 si->valid_blks[i] = 0;
191 }
192
193 for (i = 0; i < MAIN_SEGS(sbi); i++) {
194 int blks = get_seg_entry(sbi, i)->valid_blocks;
195 int type = get_seg_entry(sbi, i)->type;
196
197 if (!blks)
198 continue;
199
200 if (blks == sbi->blocks_per_seg)
201 si->full_seg[type]++;
202 else
203 si->dirty_seg[type]++;
204 si->valid_blks[type] += blks;
205 }
206
207 for (i = 0; i < 2; i++) {
208 si->segment_count[i] = sbi->segment_count[i];
209 si->block_count[i] = sbi->block_count[i];
210 }
211
212 si->inplace_count = atomic_read(&sbi->inplace_count);
213 }
214
215 /*
216 * This function calculates memory footprint.
217 */
update_mem_info(struct f2fs_sb_info * sbi)218 static void update_mem_info(struct f2fs_sb_info *sbi)
219 {
220 struct f2fs_stat_info *si = F2FS_STAT(sbi);
221 int i;
222
223 if (si->base_mem)
224 goto get_cache;
225
226 /* build stat */
227 si->base_mem = sizeof(struct f2fs_stat_info);
228
229 /* build superblock */
230 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
231 si->base_mem += 2 * sizeof(struct f2fs_inode_info);
232 si->base_mem += sizeof(*sbi->ckpt);
233
234 /* build sm */
235 si->base_mem += sizeof(struct f2fs_sm_info);
236
237 /* build sit */
238 si->base_mem += sizeof(struct sit_info);
239 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
240 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
241 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
242 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
243 si->base_mem += SIT_VBLOCK_MAP_SIZE;
244 if (__is_large_section(sbi))
245 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
246 si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
247
248 /* build free segmap */
249 si->base_mem += sizeof(struct free_segmap_info);
250 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
251 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
252
253 /* build curseg */
254 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
255 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
256
257 /* build dirty segmap */
258 si->base_mem += sizeof(struct dirty_seglist_info);
259 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
260 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
261
262 /* build nm */
263 si->base_mem += sizeof(struct f2fs_nm_info);
264 si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
265 si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS);
266 si->base_mem += NM_I(sbi)->nat_blocks *
267 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
268 si->base_mem += NM_I(sbi)->nat_blocks / 8;
269 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
270
271 get_cache:
272 si->cache_mem = 0;
273
274 /* build gc */
275 if (sbi->gc_thread)
276 si->cache_mem += sizeof(struct f2fs_gc_kthread);
277
278 /* build merge flush thread */
279 if (SM_I(sbi)->fcc_info)
280 si->cache_mem += sizeof(struct flush_cmd_control);
281 if (SM_I(sbi)->dcc_info) {
282 si->cache_mem += sizeof(struct discard_cmd_control);
283 si->cache_mem += sizeof(struct discard_cmd) *
284 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
285 }
286
287 /* free nids */
288 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
289 NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
290 sizeof(struct free_nid);
291 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
292 sizeof(struct nat_entry);
293 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
294 sizeof(struct nat_entry_set);
295 for (i = 0; i < MAX_INO_ENTRY; i++)
296 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
297 si->cache_mem += atomic_read(&sbi->total_ext_tree) *
298 sizeof(struct extent_tree);
299 si->cache_mem += atomic_read(&sbi->total_ext_node) *
300 sizeof(struct extent_node);
301
302 si->page_mem = 0;
303 if (sbi->node_inode) {
304 unsigned npages = NODE_MAPPING(sbi)->nrpages;
305
306 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
307 }
308 if (sbi->meta_inode) {
309 unsigned npages = META_MAPPING(sbi)->nrpages;
310
311 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
312 }
313 #ifdef CONFIG_F2FS_FS_COMPRESSION
314 if (sbi->compress_inode) {
315 unsigned npages = COMPRESS_MAPPING(sbi)->nrpages;
316 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
317 }
318 #endif
319 }
320
321 static char *s_flag[] = {
322 [SBI_IS_DIRTY] = " fs_dirty",
323 [SBI_IS_CLOSE] = " closing",
324 [SBI_NEED_FSCK] = " need_fsck",
325 [SBI_POR_DOING] = " recovering",
326 [SBI_NEED_SB_WRITE] = " sb_dirty",
327 [SBI_NEED_CP] = " need_cp",
328 [SBI_IS_SHUTDOWN] = " shutdown",
329 [SBI_IS_RECOVERED] = " recovered",
330 [SBI_CP_DISABLED] = " cp_disabled",
331 [SBI_CP_DISABLED_QUICK] = " cp_disabled_quick",
332 [SBI_QUOTA_NEED_FLUSH] = " quota_need_flush",
333 [SBI_QUOTA_SKIP_FLUSH] = " quota_skip_flush",
334 [SBI_QUOTA_NEED_REPAIR] = " quota_need_repair",
335 [SBI_IS_RESIZEFS] = " resizefs",
336 [SBI_IS_FREEZING] = " freezefs",
337 };
338
stat_show(struct seq_file * s,void * v)339 static int stat_show(struct seq_file *s, void *v)
340 {
341 struct f2fs_stat_info *si;
342 int i = 0, j = 0;
343 unsigned long flags;
344
345 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
346 list_for_each_entry(si, &f2fs_stat_list, stat_list) {
347 update_general_status(si->sbi);
348
349 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
350 si->sbi->sb->s_bdev, i++,
351 f2fs_readonly(si->sbi->sb) ? "RO" : "RW",
352 is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
353 "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good"));
354 if (si->sbi->s_flag) {
355 seq_puts(s, "[SBI:");
356 for_each_set_bit(j, &si->sbi->s_flag, 32)
357 seq_puts(s, s_flag[j]);
358 seq_puts(s, "]\n");
359 }
360 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
361 si->sit_area_segs, si->nat_area_segs);
362 seq_printf(s, "[SSA: %d] [MAIN: %d",
363 si->ssa_area_segs, si->main_area_segs);
364 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
365 si->overp_segs, si->rsvd_segs);
366 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
367 ktime_get_boottime_seconds(),
368 SIT_I(si->sbi)->mounted_time);
369 if (test_opt(si->sbi, DISCARD))
370 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
371 si->utilization, si->valid_count, si->discard_blks);
372 else
373 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
374 si->utilization, si->valid_count);
375
376 seq_printf(s, " - Node: %u (Inode: %u, ",
377 si->valid_node_count, si->valid_inode_count);
378 seq_printf(s, "Other: %u)\n - Data: %u\n",
379 si->valid_node_count - si->valid_inode_count,
380 si->valid_count - si->valid_node_count);
381 seq_printf(s, " - Inline_xattr Inode: %u\n",
382 si->inline_xattr);
383 seq_printf(s, " - Inline_data Inode: %u\n",
384 si->inline_inode);
385 seq_printf(s, " - Inline_dentry Inode: %u\n",
386 si->inline_dir);
387 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
388 si->compr_inode, si->compr_blocks);
389 seq_printf(s, " - Swapfile Inode: %u\n",
390 si->swapfile_inode);
391 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
392 si->orphans, si->append, si->update);
393 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
394 si->main_area_segs, si->main_area_sections,
395 si->main_area_zones);
396 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n",
397 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
398 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n",
399 si->curseg[CURSEG_COLD_DATA],
400 si->cursec[CURSEG_COLD_DATA],
401 si->curzone[CURSEG_COLD_DATA],
402 si->dirty_seg[CURSEG_COLD_DATA],
403 si->full_seg[CURSEG_COLD_DATA],
404 si->valid_blks[CURSEG_COLD_DATA]);
405 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n",
406 si->curseg[CURSEG_WARM_DATA],
407 si->cursec[CURSEG_WARM_DATA],
408 si->curzone[CURSEG_WARM_DATA],
409 si->dirty_seg[CURSEG_WARM_DATA],
410 si->full_seg[CURSEG_WARM_DATA],
411 si->valid_blks[CURSEG_WARM_DATA]);
412 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n",
413 si->curseg[CURSEG_HOT_DATA],
414 si->cursec[CURSEG_HOT_DATA],
415 si->curzone[CURSEG_HOT_DATA],
416 si->dirty_seg[CURSEG_HOT_DATA],
417 si->full_seg[CURSEG_HOT_DATA],
418 si->valid_blks[CURSEG_HOT_DATA]);
419 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n",
420 si->curseg[CURSEG_HOT_NODE],
421 si->cursec[CURSEG_HOT_NODE],
422 si->curzone[CURSEG_HOT_NODE],
423 si->dirty_seg[CURSEG_HOT_NODE],
424 si->full_seg[CURSEG_HOT_NODE],
425 si->valid_blks[CURSEG_HOT_NODE]);
426 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n",
427 si->curseg[CURSEG_WARM_NODE],
428 si->cursec[CURSEG_WARM_NODE],
429 si->curzone[CURSEG_WARM_NODE],
430 si->dirty_seg[CURSEG_WARM_NODE],
431 si->full_seg[CURSEG_WARM_NODE],
432 si->valid_blks[CURSEG_WARM_NODE]);
433 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n",
434 si->curseg[CURSEG_COLD_NODE],
435 si->cursec[CURSEG_COLD_NODE],
436 si->curzone[CURSEG_COLD_NODE],
437 si->dirty_seg[CURSEG_COLD_NODE],
438 si->full_seg[CURSEG_COLD_NODE],
439 si->valid_blks[CURSEG_COLD_NODE]);
440 seq_printf(s, " - Pinned file: %8d %8d %8d\n",
441 si->curseg[CURSEG_COLD_DATA_PINNED],
442 si->cursec[CURSEG_COLD_DATA_PINNED],
443 si->curzone[CURSEG_COLD_DATA_PINNED]);
444 seq_printf(s, " - ATGC data: %8d %8d %8d\n",
445 si->curseg[CURSEG_ALL_DATA_ATGC],
446 si->cursec[CURSEG_ALL_DATA_ATGC],
447 si->curzone[CURSEG_ALL_DATA_ATGC]);
448 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
449 si->main_area_segs - si->dirty_count -
450 si->prefree_count - si->free_segs,
451 si->dirty_count);
452 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
453 si->prefree_count, si->free_segs, si->free_secs);
454 seq_printf(s, "CP calls: %d (BG: %d)\n",
455 si->cp_count, si->bg_cp_count);
456 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
457 seq_printf(s, " - sit blocks : %u\n",
458 si->meta_count[META_SIT]);
459 seq_printf(s, " - nat blocks : %u\n",
460 si->meta_count[META_NAT]);
461 seq_printf(s, " - ssa blocks : %u\n",
462 si->meta_count[META_SSA]);
463 seq_printf(s, "CP merge (Queued: %4d, Issued: %4d, Total: %4d, "
464 "Cur time: %4d(ms), Peak time: %4d(ms))\n",
465 si->nr_queued_ckpt, si->nr_issued_ckpt,
466 si->nr_total_ckpt, si->cur_ckpt_time,
467 si->peak_ckpt_time);
468 seq_printf(s, "GC calls: %d (BG: %d)\n",
469 si->call_count, si->bg_gc);
470 seq_printf(s, " - data segments : %d (%d)\n",
471 si->data_segs, si->bg_data_segs);
472 seq_printf(s, " - node segments : %d (%d)\n",
473 si->node_segs, si->bg_node_segs);
474 seq_printf(s, " - Reclaimed segs : Normal (%d), Idle CB (%d), "
475 "Idle Greedy (%d), Idle AT (%d), "
476 "Urgent High (%d), Urgent Mid (%d), "
477 "Urgent Low (%d)\n",
478 si->sbi->gc_reclaimed_segs[GC_NORMAL],
479 si->sbi->gc_reclaimed_segs[GC_IDLE_CB],
480 si->sbi->gc_reclaimed_segs[GC_IDLE_GREEDY],
481 si->sbi->gc_reclaimed_segs[GC_IDLE_AT],
482 si->sbi->gc_reclaimed_segs[GC_URGENT_HIGH],
483 si->sbi->gc_reclaimed_segs[GC_URGENT_MID],
484 si->sbi->gc_reclaimed_segs[GC_URGENT_LOW]);
485 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
486 si->bg_data_blks + si->bg_node_blks);
487 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
488 si->bg_data_blks);
489 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
490 si->bg_node_blks);
491 seq_printf(s, "BG skip : IO: %u, Other: %u\n",
492 si->io_skip_bggc, si->other_skip_bggc);
493 seq_puts(s, "\nExtent Cache:\n");
494 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
495 si->hit_largest, si->hit_cached,
496 si->hit_rbtree);
497 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
498 !si->total_ext ? 0 :
499 div64_u64(si->hit_total * 100, si->total_ext),
500 si->hit_total, si->total_ext);
501 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
502 si->ext_tree, si->zombie_tree, si->ext_node);
503 seq_puts(s, "\nBalancing F2FS Async:\n");
504 seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
505 si->nr_dio_read, si->nr_dio_write);
506 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
507 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
508 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), "
509 "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
510 si->nr_wb_cp_data, si->nr_wb_data,
511 si->nr_flushing, si->nr_flushed,
512 si->flush_list_empty,
513 si->nr_discarding, si->nr_discarded,
514 si->nr_discard_cmd, si->undiscard_blks);
515 seq_printf(s, " - atomic IO: %4d (Max. %4d)\n",
516 si->aw_cnt, si->max_aw_cnt);
517 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
518 seq_printf(s, " - nodes: %4d in %4d\n",
519 si->ndirty_node, si->node_pages);
520 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
521 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
522 seq_printf(s, " - datas: %4d in files:%4d\n",
523 si->ndirty_data, si->ndirty_files);
524 seq_printf(s, " - quota datas: %4d in quota files:%4d\n",
525 si->ndirty_qdata, si->nquota_files);
526 seq_printf(s, " - meta: %4d in %4d\n",
527 si->ndirty_meta, si->meta_pages);
528 seq_printf(s, " - imeta: %4d\n",
529 si->ndirty_imeta);
530 seq_printf(s, " - fsync mark: %4lld\n",
531 percpu_counter_sum_positive(
532 &si->sbi->rf_node_block_count));
533 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
534 si->dirty_nats, si->nats, si->dirty_sits, si->sits);
535 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
536 si->free_nids, si->avail_nids, si->alloc_nids);
537 seq_puts(s, "\nDistribution of User Blocks:");
538 seq_puts(s, " [ valid | invalid | free ]\n");
539 seq_puts(s, " [");
540
541 for (j = 0; j < si->util_valid; j++)
542 seq_putc(s, '-');
543 seq_putc(s, '|');
544
545 for (j = 0; j < si->util_invalid; j++)
546 seq_putc(s, '-');
547 seq_putc(s, '|');
548
549 for (j = 0; j < si->util_free; j++)
550 seq_putc(s, '-');
551 seq_puts(s, "]\n\n");
552 seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
553 seq_printf(s, "SSR: %u blocks in %u segments\n",
554 si->block_count[SSR], si->segment_count[SSR]);
555 seq_printf(s, "LFS: %u blocks in %u segments\n",
556 si->block_count[LFS], si->segment_count[LFS]);
557
558 /* segment usage info */
559 f2fs_update_sit_info(si->sbi);
560 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
561 si->bimodal, si->avg_vblocks);
562
563 /* memory footprint */
564 update_mem_info(si->sbi);
565 seq_printf(s, "\nMemory: %llu KB\n",
566 (si->base_mem + si->cache_mem + si->page_mem) >> 10);
567 seq_printf(s, " - static: %llu KB\n",
568 si->base_mem >> 10);
569 seq_printf(s, " - cached: %llu KB\n",
570 si->cache_mem >> 10);
571 seq_printf(s, " - paged : %llu KB\n",
572 si->page_mem >> 10);
573 }
574 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
575 return 0;
576 }
577
578 DEFINE_SHOW_ATTRIBUTE(stat);
579 #endif
580
f2fs_build_stats(struct f2fs_sb_info * sbi)581 int f2fs_build_stats(struct f2fs_sb_info *sbi)
582 {
583 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
584 struct f2fs_stat_info *si;
585 unsigned long flags;
586 int i;
587
588 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
589 if (!si)
590 return -ENOMEM;
591
592 si->all_area_segs = le32_to_cpu(raw_super->segment_count);
593 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
594 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
595 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
596 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
597 si->main_area_sections = le32_to_cpu(raw_super->section_count);
598 si->main_area_zones = si->main_area_sections /
599 le32_to_cpu(raw_super->secs_per_zone);
600 si->sbi = sbi;
601 sbi->stat_info = si;
602
603 atomic64_set(&sbi->total_hit_ext, 0);
604 atomic64_set(&sbi->read_hit_rbtree, 0);
605 atomic64_set(&sbi->read_hit_largest, 0);
606 atomic64_set(&sbi->read_hit_cached, 0);
607
608 atomic_set(&sbi->inline_xattr, 0);
609 atomic_set(&sbi->inline_inode, 0);
610 atomic_set(&sbi->inline_dir, 0);
611 atomic_set(&sbi->compr_inode, 0);
612 atomic64_set(&sbi->compr_blocks, 0);
613 atomic_set(&sbi->swapfile_inode, 0);
614 atomic_set(&sbi->atomic_files, 0);
615 atomic_set(&sbi->inplace_count, 0);
616 for (i = META_CP; i < META_MAX; i++)
617 atomic_set(&sbi->meta_count[i], 0);
618
619 atomic_set(&sbi->max_aw_cnt, 0);
620
621 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
622 list_add_tail(&si->stat_list, &f2fs_stat_list);
623 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
624
625 return 0;
626 }
627
f2fs_destroy_stats(struct f2fs_sb_info * sbi)628 void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
629 {
630 struct f2fs_stat_info *si = F2FS_STAT(sbi);
631 unsigned long flags;
632
633 raw_spin_lock_irqsave(&f2fs_stat_lock, flags);
634 list_del(&si->stat_list);
635 raw_spin_unlock_irqrestore(&f2fs_stat_lock, flags);
636
637 kfree(si);
638 }
639
f2fs_create_root_stats(void)640 void __init f2fs_create_root_stats(void)
641 {
642 #ifdef CONFIG_DEBUG_FS
643 f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL);
644
645 debugfs_create_file("status", 0444, f2fs_debugfs_root, NULL,
646 &stat_fops);
647 #endif
648 }
649
f2fs_destroy_root_stats(void)650 void f2fs_destroy_root_stats(void)
651 {
652 #ifdef CONFIG_DEBUG_FS
653 debugfs_remove_recursive(f2fs_debugfs_root);
654 f2fs_debugfs_root = NULL;
655 #endif
656 }
657