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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_MUTEX(f2fs_stat_mutex);
25#ifdef CONFIG_DEBUG_FS
26static struct dentry *f2fs_debugfs_root;
27#endif
28
29
30
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 = 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
63static 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
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
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->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES);
95 si->aw_cnt = sbi->atomic_files;
96 si->vw_cnt = atomic_read(&sbi->vw_cnt);
97 si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt);
98 si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt);
99 si->nr_dio_read = get_pages(sbi, F2FS_DIO_READ);
100 si->nr_dio_write = get_pages(sbi, F2FS_DIO_WRITE);
101 si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA);
102 si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA);
103 si->nr_rd_data = get_pages(sbi, F2FS_RD_DATA);
104 si->nr_rd_node = get_pages(sbi, F2FS_RD_NODE);
105 si->nr_rd_meta = get_pages(sbi, F2FS_RD_META);
106 if (SM_I(sbi)->fcc_info) {
107 si->nr_flushed =
108 atomic_read(&SM_I(sbi)->fcc_info->issued_flush);
109 si->nr_flushing =
110 atomic_read(&SM_I(sbi)->fcc_info->queued_flush);
111 si->flush_list_empty =
112 llist_empty(&SM_I(sbi)->fcc_info->issue_list);
113 }
114 if (SM_I(sbi)->dcc_info) {
115 si->nr_discarded =
116 atomic_read(&SM_I(sbi)->dcc_info->issued_discard);
117 si->nr_discarding =
118 atomic_read(&SM_I(sbi)->dcc_info->queued_discard);
119 si->nr_discard_cmd =
120 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
121 si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks;
122 }
123 si->nr_issued_ckpt = atomic_read(&sbi->cprc_info.issued_ckpt);
124 si->nr_total_ckpt = atomic_read(&sbi->cprc_info.total_ckpt);
125 si->nr_queued_ckpt = atomic_read(&sbi->cprc_info.queued_ckpt);
126 spin_lock(&sbi->cprc_info.stat_lock);
127 si->cur_ckpt_time = sbi->cprc_info.cur_time;
128 si->peak_ckpt_time = sbi->cprc_info.peak_time;
129 spin_unlock(&sbi->cprc_info.stat_lock);
130 si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg;
131 si->rsvd_segs = reserved_segments(sbi);
132 si->overp_segs = overprovision_segments(sbi);
133 si->valid_count = valid_user_blocks(sbi);
134 si->discard_blks = discard_blocks(sbi);
135 si->valid_node_count = valid_node_count(sbi);
136 si->valid_inode_count = valid_inode_count(sbi);
137 si->inline_xattr = atomic_read(&sbi->inline_xattr);
138 si->inline_inode = atomic_read(&sbi->inline_inode);
139 si->inline_dir = atomic_read(&sbi->inline_dir);
140 si->compr_inode = atomic_read(&sbi->compr_inode);
141 si->compr_blocks = atomic64_read(&sbi->compr_blocks);
142 si->append = sbi->im[APPEND_INO].ino_num;
143 si->update = sbi->im[UPDATE_INO].ino_num;
144 si->orphans = sbi->im[ORPHAN_INO].ino_num;
145 si->utilization = utilization(sbi);
146
147 si->free_segs = free_segments(sbi);
148 si->free_secs = free_sections(sbi);
149 si->prefree_count = prefree_segments(sbi);
150 si->dirty_count = dirty_segments(sbi);
151 if (sbi->node_inode)
152 si->node_pages = NODE_MAPPING(sbi)->nrpages;
153 if (sbi->meta_inode)
154 si->meta_pages = META_MAPPING(sbi)->nrpages;
155#ifdef CONFIG_F2FS_FS_COMPRESSION
156 if (sbi->compress_inode) {
157 si->compress_pages = COMPRESS_MAPPING(sbi)->nrpages;
158 si->compress_page_hit = atomic_read(&sbi->compress_page_hit);
159 }
160#endif
161 si->nats = NM_I(sbi)->nat_cnt[TOTAL_NAT];
162 si->dirty_nats = NM_I(sbi)->nat_cnt[DIRTY_NAT];
163 si->sits = MAIN_SEGS(sbi);
164 si->dirty_sits = SIT_I(sbi)->dirty_sentries;
165 si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID];
166 si->avail_nids = NM_I(sbi)->available_nids;
167 si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID];
168 si->io_skip_bggc = sbi->io_skip_bggc;
169 si->other_skip_bggc = sbi->other_skip_bggc;
170 si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC];
171 si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC];
172 si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg)
173 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
174 / 2;
175 si->util_valid = (int)(written_block_count(sbi) >>
176 sbi->log_blocks_per_seg)
177 * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg)
178 / 2;
179 si->util_invalid = 50 - si->util_free - si->util_valid;
180 for (i = CURSEG_HOT_DATA; i < NO_CHECK_TYPE; i++) {
181 struct curseg_info *curseg = CURSEG_I(sbi, i);
182
183 si->curseg[i] = curseg->segno;
184 si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno);
185 si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]);
186 }
187
188 for (i = META_CP; i < META_MAX; i++)
189 si->meta_count[i] = atomic_read(&sbi->meta_count[i]);
190
191 for (i = 0; i < NO_CHECK_TYPE; i++) {
192 si->dirty_seg[i] = 0;
193 si->full_seg[i] = 0;
194 si->valid_blks[i] = 0;
195 }
196
197 for (i = 0; i < MAIN_SEGS(sbi); i++) {
198 int blks = get_seg_entry(sbi, i)->valid_blocks;
199 int type = get_seg_entry(sbi, i)->type;
200
201 if (!blks)
202 continue;
203
204 if (blks == sbi->blocks_per_seg)
205 si->full_seg[type]++;
206 else
207 si->dirty_seg[type]++;
208 si->valid_blks[type] += blks;
209 }
210
211 for (i = 0; i < 2; i++) {
212 si->segment_count[i] = sbi->segment_count[i];
213 si->block_count[i] = sbi->block_count[i];
214 }
215
216 si->inplace_count = atomic_read(&sbi->inplace_count);
217}
218
219
220
221
222static void update_mem_info(struct f2fs_sb_info *sbi)
223{
224 struct f2fs_stat_info *si = F2FS_STAT(sbi);
225 int i;
226
227 if (si->base_mem)
228 goto get_cache;
229
230
231 si->base_mem = sizeof(struct f2fs_stat_info);
232
233
234 si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize;
235 si->base_mem += 2 * sizeof(struct f2fs_inode_info);
236 si->base_mem += sizeof(*sbi->ckpt);
237
238
239 si->base_mem += sizeof(struct f2fs_sm_info);
240
241
242 si->base_mem += sizeof(struct sit_info);
243 si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry);
244 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
245 si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
246 si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi);
247 si->base_mem += SIT_VBLOCK_MAP_SIZE;
248 if (__is_large_section(sbi))
249 si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry);
250 si->base_mem += __bitmap_size(sbi, SIT_BITMAP);
251
252
253 si->base_mem += sizeof(struct free_segmap_info);
254 si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi));
255 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
256
257
258 si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE;
259 si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE;
260
261
262 si->base_mem += sizeof(struct dirty_seglist_info);
263 si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi));
264 si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi));
265
266
267 si->base_mem += sizeof(struct f2fs_nm_info);
268 si->base_mem += __bitmap_size(sbi, NAT_BITMAP);
269 si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS);
270 si->base_mem += NM_I(sbi)->nat_blocks *
271 f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK);
272 si->base_mem += NM_I(sbi)->nat_blocks / 8;
273 si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short);
274
275get_cache:
276 si->cache_mem = 0;
277
278
279 if (sbi->gc_thread)
280 si->cache_mem += sizeof(struct f2fs_gc_kthread);
281
282
283 if (SM_I(sbi)->fcc_info)
284 si->cache_mem += sizeof(struct flush_cmd_control);
285 if (SM_I(sbi)->dcc_info) {
286 si->cache_mem += sizeof(struct discard_cmd_control);
287 si->cache_mem += sizeof(struct discard_cmd) *
288 atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt);
289 }
290
291
292 si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] +
293 NM_I(sbi)->nid_cnt[PREALLOC_NID]) *
294 sizeof(struct free_nid);
295 si->cache_mem += NM_I(sbi)->nat_cnt[TOTAL_NAT] *
296 sizeof(struct nat_entry);
297 si->cache_mem += NM_I(sbi)->nat_cnt[DIRTY_NAT] *
298 sizeof(struct nat_entry_set);
299 si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages);
300 for (i = 0; i < MAX_INO_ENTRY; i++)
301 si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry);
302 si->cache_mem += atomic_read(&sbi->total_ext_tree) *
303 sizeof(struct extent_tree);
304 si->cache_mem += atomic_read(&sbi->total_ext_node) *
305 sizeof(struct extent_node);
306
307 si->page_mem = 0;
308 if (sbi->node_inode) {
309 unsigned npages = NODE_MAPPING(sbi)->nrpages;
310
311 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
312 }
313 if (sbi->meta_inode) {
314 unsigned npages = META_MAPPING(sbi)->nrpages;
315
316 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
317 }
318#ifdef CONFIG_F2FS_FS_COMPRESSION
319 if (sbi->compress_inode) {
320 unsigned npages = COMPRESS_MAPPING(sbi)->nrpages;
321 si->page_mem += (unsigned long long)npages << PAGE_SHIFT;
322 }
323#endif
324}
325
326static char *s_flag[] = {
327 [SBI_IS_DIRTY] = " fs_dirty",
328 [SBI_IS_CLOSE] = " closing",
329 [SBI_NEED_FSCK] = " need_fsck",
330 [SBI_POR_DOING] = " recovering",
331 [SBI_NEED_SB_WRITE] = " sb_dirty",
332 [SBI_NEED_CP] = " need_cp",
333 [SBI_IS_SHUTDOWN] = " shutdown",
334 [SBI_IS_RECOVERED] = " recovered",
335 [SBI_CP_DISABLED] = " cp_disabled",
336 [SBI_CP_DISABLED_QUICK] = " cp_disabled_quick",
337 [SBI_QUOTA_NEED_FLUSH] = " quota_need_flush",
338 [SBI_QUOTA_SKIP_FLUSH] = " quota_skip_flush",
339 [SBI_QUOTA_NEED_REPAIR] = " quota_need_repair",
340 [SBI_IS_RESIZEFS] = " resizefs",
341};
342
343static int stat_show(struct seq_file *s, void *v)
344{
345 struct f2fs_stat_info *si;
346 int i = 0, j = 0;
347
348 mutex_lock(&f2fs_stat_mutex);
349 list_for_each_entry(si, &f2fs_stat_list, stat_list) {
350 update_general_status(si->sbi);
351
352 seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n",
353 si->sbi->sb->s_bdev, i++,
354 f2fs_readonly(si->sbi->sb) ? "RO": "RW",
355 is_set_ckpt_flags(si->sbi, CP_DISABLED_FLAG) ?
356 "Disabled" : (f2fs_cp_error(si->sbi) ? "Error" : "Good"));
357 if (si->sbi->s_flag) {
358 seq_puts(s, "[SBI:");
359 for_each_set_bit(j, &si->sbi->s_flag, 32)
360 seq_puts(s, s_flag[j]);
361 seq_puts(s, "]\n");
362 }
363 seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ",
364 si->sit_area_segs, si->nat_area_segs);
365 seq_printf(s, "[SSA: %d] [MAIN: %d",
366 si->ssa_area_segs, si->main_area_segs);
367 seq_printf(s, "(OverProv:%d Resv:%d)]\n\n",
368 si->overp_segs, si->rsvd_segs);
369 seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n",
370 ktime_get_boottime_seconds(),
371 SIT_I(si->sbi)->mounted_time);
372 if (test_opt(si->sbi, DISCARD))
373 seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n",
374 si->utilization, si->valid_count, si->discard_blks);
375 else
376 seq_printf(s, "Utilization: %u%% (%u valid blocks)\n",
377 si->utilization, si->valid_count);
378
379 seq_printf(s, " - Node: %u (Inode: %u, ",
380 si->valid_node_count, si->valid_inode_count);
381 seq_printf(s, "Other: %u)\n - Data: %u\n",
382 si->valid_node_count - si->valid_inode_count,
383 si->valid_count - si->valid_node_count);
384 seq_printf(s, " - Inline_xattr Inode: %u\n",
385 si->inline_xattr);
386 seq_printf(s, " - Inline_data Inode: %u\n",
387 si->inline_inode);
388 seq_printf(s, " - Inline_dentry Inode: %u\n",
389 si->inline_dir);
390 seq_printf(s, " - Compressed Inode: %u, Blocks: %llu\n",
391 si->compr_inode, si->compr_blocks);
392 seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n",
393 si->orphans, si->append, si->update);
394 seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n",
395 si->main_area_segs, si->main_area_sections,
396 si->main_area_zones);
397 seq_printf(s, " TYPE %8s %8s %8s %10s %10s %10s\n",
398 "segno", "secno", "zoneno", "dirty_seg", "full_seg", "valid_blk");
399 seq_printf(s, " - COLD data: %8d %8d %8d %10u %10u %10u\n",
400 si->curseg[CURSEG_COLD_DATA],
401 si->cursec[CURSEG_COLD_DATA],
402 si->curzone[CURSEG_COLD_DATA],
403 si->dirty_seg[CURSEG_COLD_DATA],
404 si->full_seg[CURSEG_COLD_DATA],
405 si->valid_blks[CURSEG_COLD_DATA]);
406 seq_printf(s, " - WARM data: %8d %8d %8d %10u %10u %10u\n",
407 si->curseg[CURSEG_WARM_DATA],
408 si->cursec[CURSEG_WARM_DATA],
409 si->curzone[CURSEG_WARM_DATA],
410 si->dirty_seg[CURSEG_WARM_DATA],
411 si->full_seg[CURSEG_WARM_DATA],
412 si->valid_blks[CURSEG_WARM_DATA]);
413 seq_printf(s, " - HOT data: %8d %8d %8d %10u %10u %10u\n",
414 si->curseg[CURSEG_HOT_DATA],
415 si->cursec[CURSEG_HOT_DATA],
416 si->curzone[CURSEG_HOT_DATA],
417 si->dirty_seg[CURSEG_HOT_DATA],
418 si->full_seg[CURSEG_HOT_DATA],
419 si->valid_blks[CURSEG_HOT_DATA]);
420 seq_printf(s, " - Dir dnode: %8d %8d %8d %10u %10u %10u\n",
421 si->curseg[CURSEG_HOT_NODE],
422 si->cursec[CURSEG_HOT_NODE],
423 si->curzone[CURSEG_HOT_NODE],
424 si->dirty_seg[CURSEG_HOT_NODE],
425 si->full_seg[CURSEG_HOT_NODE],
426 si->valid_blks[CURSEG_HOT_NODE]);
427 seq_printf(s, " - File dnode: %8d %8d %8d %10u %10u %10u\n",
428 si->curseg[CURSEG_WARM_NODE],
429 si->cursec[CURSEG_WARM_NODE],
430 si->curzone[CURSEG_WARM_NODE],
431 si->dirty_seg[CURSEG_WARM_NODE],
432 si->full_seg[CURSEG_WARM_NODE],
433 si->valid_blks[CURSEG_WARM_NODE]);
434 seq_printf(s, " - Indir nodes: %8d %8d %8d %10u %10u %10u\n",
435 si->curseg[CURSEG_COLD_NODE],
436 si->cursec[CURSEG_COLD_NODE],
437 si->curzone[CURSEG_COLD_NODE],
438 si->dirty_seg[CURSEG_COLD_NODE],
439 si->full_seg[CURSEG_COLD_NODE],
440 si->valid_blks[CURSEG_COLD_NODE]);
441 seq_printf(s, " - Pinned file: %8d %8d %8d\n",
442 si->curseg[CURSEG_COLD_DATA_PINNED],
443 si->cursec[CURSEG_COLD_DATA_PINNED],
444 si->curzone[CURSEG_COLD_DATA_PINNED]);
445 seq_printf(s, " - ATGC data: %8d %8d %8d\n",
446 si->curseg[CURSEG_ALL_DATA_ATGC],
447 si->cursec[CURSEG_ALL_DATA_ATGC],
448 si->curzone[CURSEG_ALL_DATA_ATGC]);
449 seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n",
450 si->main_area_segs - si->dirty_count -
451 si->prefree_count - si->free_segs,
452 si->dirty_count);
453 seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n",
454 si->prefree_count, si->free_segs, si->free_secs);
455 seq_printf(s, "CP calls: %d (BG: %d)\n",
456 si->cp_count, si->bg_cp_count);
457 seq_printf(s, " - cp blocks : %u\n", si->meta_count[META_CP]);
458 seq_printf(s, " - sit blocks : %u\n",
459 si->meta_count[META_SIT]);
460 seq_printf(s, " - nat blocks : %u\n",
461 si->meta_count[META_NAT]);
462 seq_printf(s, " - ssa blocks : %u\n",
463 si->meta_count[META_SSA]);
464 seq_printf(s, "CP merge (Queued: %4d, Issued: %4d, Total: %4d, "
465 "Cur time: %4d(ms), Peak time: %4d(ms))\n",
466 si->nr_queued_ckpt, si->nr_issued_ckpt,
467 si->nr_total_ckpt, si->cur_ckpt_time,
468 si->peak_ckpt_time);
469 seq_printf(s, "GC calls: %d (BG: %d)\n",
470 si->call_count, si->bg_gc);
471 seq_printf(s, " - data segments : %d (%d)\n",
472 si->data_segs, si->bg_data_segs);
473 seq_printf(s, " - node segments : %d (%d)\n",
474 si->node_segs, si->bg_node_segs);
475 seq_printf(s, " - Reclaimed segs : Normal (%d), Idle CB (%d), "
476 "Idle Greedy (%d), Idle AT (%d), "
477 "Urgent High (%d), 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_LOW]);
484 seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks,
485 si->bg_data_blks + si->bg_node_blks);
486 seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks,
487 si->bg_data_blks);
488 seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks,
489 si->bg_node_blks);
490 seq_printf(s, "Skipped : atomic write %llu (%llu)\n",
491 si->skipped_atomic_files[BG_GC] +
492 si->skipped_atomic_files[FG_GC],
493 si->skipped_atomic_files[BG_GC]);
494 seq_printf(s, "BG skip : IO: %u, Other: %u\n",
495 si->io_skip_bggc, si->other_skip_bggc);
496 seq_puts(s, "\nExtent Cache:\n");
497 seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n",
498 si->hit_largest, si->hit_cached,
499 si->hit_rbtree);
500 seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n",
501 !si->total_ext ? 0 :
502 div64_u64(si->hit_total * 100, si->total_ext),
503 si->hit_total, si->total_ext);
504 seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n",
505 si->ext_tree, si->zombie_tree, si->ext_node);
506 seq_puts(s, "\nBalancing F2FS Async:\n");
507 seq_printf(s, " - DIO (R: %4d, W: %4d)\n",
508 si->nr_dio_read, si->nr_dio_write);
509 seq_printf(s, " - IO_R (Data: %4d, Node: %4d, Meta: %4d\n",
510 si->nr_rd_data, si->nr_rd_node, si->nr_rd_meta);
511 seq_printf(s, " - IO_W (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), "
512 "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n",
513 si->nr_wb_cp_data, si->nr_wb_data,
514 si->nr_flushing, si->nr_flushed,
515 si->flush_list_empty,
516 si->nr_discarding, si->nr_discarded,
517 si->nr_discard_cmd, si->undiscard_blks);
518 seq_printf(s, " - inmem: %4d, atomic IO: %4d (Max. %4d), "
519 "volatile IO: %4d (Max. %4d)\n",
520 si->inmem_pages, si->aw_cnt, si->max_aw_cnt,
521 si->vw_cnt, si->max_vw_cnt);
522 seq_printf(s, " - compress: %4d, hit:%8d\n", si->compress_pages, si->compress_page_hit);
523 seq_printf(s, " - nodes: %4d in %4d\n",
524 si->ndirty_node, si->node_pages);
525 seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n",
526 si->ndirty_dent, si->ndirty_dirs, si->ndirty_all);
527 seq_printf(s, " - datas: %4d in files:%4d\n",
528 si->ndirty_data, si->ndirty_files);
529 seq_printf(s, " - quota datas: %4d in quota files:%4d\n",
530 si->ndirty_qdata, si->nquota_files);
531 seq_printf(s, " - meta: %4d in %4d\n",
532 si->ndirty_meta, si->meta_pages);
533 seq_printf(s, " - imeta: %4d\n",
534 si->ndirty_imeta);
535 seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n",
536 si->dirty_nats, si->nats, si->dirty_sits, si->sits);
537 seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n",
538 si->free_nids, si->avail_nids, si->alloc_nids);
539 seq_puts(s, "\nDistribution of User Blocks:");
540 seq_puts(s, " [ valid | invalid | free ]\n");
541 seq_puts(s, " [");
542
543 for (j = 0; j < si->util_valid; j++)
544 seq_putc(s, '-');
545 seq_putc(s, '|');
546
547 for (j = 0; j < si->util_invalid; j++)
548 seq_putc(s, '-');
549 seq_putc(s, '|');
550
551 for (j = 0; j < si->util_free; j++)
552 seq_putc(s, '-');
553 seq_puts(s, "]\n\n");
554 seq_printf(s, "IPU: %u blocks\n", si->inplace_count);
555 seq_printf(s, "SSR: %u blocks in %u segments\n",
556 si->block_count[SSR], si->segment_count[SSR]);
557 seq_printf(s, "LFS: %u blocks in %u segments\n",
558 si->block_count[LFS], si->segment_count[LFS]);
559
560
561 f2fs_update_sit_info(si->sbi);
562 seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n",
563 si->bimodal, si->avg_vblocks);
564
565
566 update_mem_info(si->sbi);
567 seq_printf(s, "\nMemory: %llu KB\n",
568 (si->base_mem + si->cache_mem + si->page_mem) >> 10);
569 seq_printf(s, " - static: %llu KB\n",
570 si->base_mem >> 10);
571 seq_printf(s, " - cached: %llu KB\n",
572 si->cache_mem >> 10);
573 seq_printf(s, " - paged : %llu KB\n",
574 si->page_mem >> 10);
575 }
576 mutex_unlock(&f2fs_stat_mutex);
577 return 0;
578}
579
580DEFINE_SHOW_ATTRIBUTE(stat);
581#endif
582
583int f2fs_build_stats(struct f2fs_sb_info *sbi)
584{
585 struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
586 struct f2fs_stat_info *si;
587 int i;
588
589 si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL);
590 if (!si)
591 return -ENOMEM;
592
593 si->all_area_segs = le32_to_cpu(raw_super->segment_count);
594 si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit);
595 si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat);
596 si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa);
597 si->main_area_segs = le32_to_cpu(raw_super->segment_count_main);
598 si->main_area_sections = le32_to_cpu(raw_super->section_count);
599 si->main_area_zones = si->main_area_sections /
600 le32_to_cpu(raw_super->secs_per_zone);
601 si->sbi = sbi;
602 sbi->stat_info = si;
603
604 atomic64_set(&sbi->total_hit_ext, 0);
605 atomic64_set(&sbi->read_hit_rbtree, 0);
606 atomic64_set(&sbi->read_hit_largest, 0);
607 atomic64_set(&sbi->read_hit_cached, 0);
608
609 atomic_set(&sbi->inline_xattr, 0);
610 atomic_set(&sbi->inline_inode, 0);
611 atomic_set(&sbi->inline_dir, 0);
612 atomic_set(&sbi->compr_inode, 0);
613 atomic64_set(&sbi->compr_blocks, 0);
614 atomic_set(&sbi->inplace_count, 0);
615 for (i = META_CP; i < META_MAX; i++)
616 atomic_set(&sbi->meta_count[i], 0);
617
618 atomic_set(&sbi->vw_cnt, 0);
619 atomic_set(&sbi->max_aw_cnt, 0);
620 atomic_set(&sbi->max_vw_cnt, 0);
621
622 mutex_lock(&f2fs_stat_mutex);
623 list_add_tail(&si->stat_list, &f2fs_stat_list);
624 mutex_unlock(&f2fs_stat_mutex);
625
626 return 0;
627}
628
629void f2fs_destroy_stats(struct f2fs_sb_info *sbi)
630{
631 struct f2fs_stat_info *si = F2FS_STAT(sbi);
632
633 mutex_lock(&f2fs_stat_mutex);
634 list_del(&si->stat_list);
635 mutex_unlock(&f2fs_stat_mutex);
636
637 kfree(si);
638}
639
640void __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
650void 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
