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Commit | Line | Data |
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0a8165d7 | 1 | /* |
902829aa GKH |
2 | * f2fs debugging statistics |
3 | * | |
4 | * Copyright (c) 2012 Samsung Electronics Co., Ltd. | |
5 | * http://www.samsung.com/ | |
6 | * Copyright (c) 2012 Linux Foundation | |
7 | * Copyright (c) 2012 Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License version 2 as | |
11 | * published by the Free Software Foundation. | |
12 | */ | |
13 | ||
14 | #include <linux/fs.h> | |
15 | #include <linux/backing-dev.h> | |
902829aa GKH |
16 | #include <linux/f2fs_fs.h> |
17 | #include <linux/blkdev.h> | |
18 | #include <linux/debugfs.h> | |
19 | #include <linux/seq_file.h> | |
20 | ||
21 | #include "f2fs.h" | |
22 | #include "node.h" | |
23 | #include "segment.h" | |
24 | #include "gc.h" | |
25 | ||
26 | static LIST_HEAD(f2fs_stat_list); | |
40e1ebe9 | 27 | static struct dentry *f2fs_debugfs_root; |
66af62ce | 28 | static DEFINE_MUTEX(f2fs_stat_mutex); |
902829aa | 29 | |
25ca923b | 30 | static void update_general_status(struct f2fs_sb_info *sbi) |
902829aa | 31 | { |
963d4f7d | 32 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
902829aa GKH |
33 | int i; |
34 | ||
e1c42045 | 35 | /* validation check of the segment numbers */ |
5b7ee374 CY |
36 | si->hit_largest = atomic64_read(&sbi->read_hit_largest); |
37 | si->hit_cached = atomic64_read(&sbi->read_hit_cached); | |
38 | si->hit_rbtree = atomic64_read(&sbi->read_hit_rbtree); | |
029e13cc | 39 | si->hit_total = si->hit_largest + si->hit_cached + si->hit_rbtree; |
5b7ee374 | 40 | si->total_ext = atomic64_read(&sbi->total_hit_ext); |
7441ccef | 41 | si->ext_tree = atomic_read(&sbi->total_ext_tree); |
c00ba554 | 42 | si->zombie_tree = atomic_read(&sbi->total_zombie_tree); |
4bf6fd9f | 43 | si->ext_node = atomic_read(&sbi->total_ext_node); |
902829aa GKH |
44 | si->ndirty_node = get_pages(sbi, F2FS_DIRTY_NODES); |
45 | si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); | |
902829aa | 46 | si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); |
33fbd510 | 47 | si->ndirty_data = get_pages(sbi, F2FS_DIRTY_DATA); |
5bc994a0 | 48 | si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); |
33fbd510 CY |
49 | si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; |
50 | si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; | |
0f18b462 | 51 | si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; |
8dcf2ff7 | 52 | si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES); |
26a28a0c | 53 | si->aw_cnt = atomic_read(&sbi->aw_cnt); |
648d50ba | 54 | si->vw_cnt = atomic_read(&sbi->vw_cnt); |
26a28a0c | 55 | si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); |
648d50ba | 56 | si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt); |
36951b38 CY |
57 | si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); |
58 | si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); | |
8b8dd65f CY |
59 | if (SM_I(sbi) && SM_I(sbi)->fcc_info) { |
60 | si->nr_flushed = | |
61 | atomic_read(&SM_I(sbi)->fcc_info->issued_flush); | |
62 | si->nr_flushing = | |
63 | atomic_read(&SM_I(sbi)->fcc_info->issing_flush); | |
64 | } | |
65 | if (SM_I(sbi) && SM_I(sbi)->dcc_info) { | |
66 | si->nr_discarded = | |
67 | atomic_read(&SM_I(sbi)->dcc_info->issued_discard); | |
68 | si->nr_discarding = | |
69 | atomic_read(&SM_I(sbi)->dcc_info->issing_discard); | |
70 | } | |
902829aa GKH |
71 | si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; |
72 | si->rsvd_segs = reserved_segments(sbi); | |
73 | si->overp_segs = overprovision_segments(sbi); | |
74 | si->valid_count = valid_user_blocks(sbi); | |
f83a2584 | 75 | si->discard_blks = discard_blocks(sbi); |
902829aa GKH |
76 | si->valid_node_count = valid_node_count(sbi); |
77 | si->valid_inode_count = valid_inode_count(sbi); | |
d5e8f6c9 | 78 | si->inline_xattr = atomic_read(&sbi->inline_xattr); |
03e14d52 CY |
79 | si->inline_inode = atomic_read(&sbi->inline_inode); |
80 | si->inline_dir = atomic_read(&sbi->inline_dir); | |
a00861db JK |
81 | si->append = sbi->im[APPEND_INO].ino_num; |
82 | si->update = sbi->im[UPDATE_INO].ino_num; | |
652be551 | 83 | si->orphans = sbi->im[ORPHAN_INO].ino_num; |
902829aa GKH |
84 | si->utilization = utilization(sbi); |
85 | ||
86 | si->free_segs = free_segments(sbi); | |
87 | si->free_secs = free_sections(sbi); | |
88 | si->prefree_count = prefree_segments(sbi); | |
89 | si->dirty_count = dirty_segments(sbi); | |
4ef51a8f | 90 | si->node_pages = NODE_MAPPING(sbi)->nrpages; |
9df27d98 | 91 | si->meta_pages = META_MAPPING(sbi)->nrpages; |
902829aa | 92 | si->nats = NM_I(sbi)->nat_cnt; |
dd4e4b59 JK |
93 | si->dirty_nats = NM_I(sbi)->dirty_nat_cnt; |
94 | si->sits = MAIN_SEGS(sbi); | |
95 | si->dirty_sits = SIT_I(sbi)->dirty_sentries; | |
b8559dc2 CY |
96 | si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID_LIST]; |
97 | si->alloc_nids = NM_I(sbi)->nid_cnt[ALLOC_NID_LIST]; | |
902829aa GKH |
98 | si->bg_gc = sbi->bg_gc; |
99 | si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg) | |
100 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) | |
101 | / 2; | |
102 | si->util_valid = (int)(written_block_count(sbi) >> | |
103 | sbi->log_blocks_per_seg) | |
104 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) | |
105 | / 2; | |
106 | si->util_invalid = 50 - si->util_free - si->util_valid; | |
107 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) { | |
108 | struct curseg_info *curseg = CURSEG_I(sbi, i); | |
109 | si->curseg[i] = curseg->segno; | |
110 | si->cursec[i] = curseg->segno / sbi->segs_per_sec; | |
111 | si->curzone[i] = si->cursec[i] / sbi->secs_per_zone; | |
112 | } | |
113 | ||
114 | for (i = 0; i < 2; i++) { | |
115 | si->segment_count[i] = sbi->segment_count[i]; | |
116 | si->block_count[i] = sbi->block_count[i]; | |
117 | } | |
b9a2c252 CL |
118 | |
119 | si->inplace_count = atomic_read(&sbi->inplace_count); | |
902829aa GKH |
120 | } |
121 | ||
0a8165d7 | 122 | /* |
902829aa GKH |
123 | * This function calculates BDF of every segments |
124 | */ | |
125 | static void update_sit_info(struct f2fs_sb_info *sbi) | |
126 | { | |
963d4f7d | 127 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
3589a919 JK |
128 | unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; |
129 | unsigned long long bimodal, dist; | |
902829aa GKH |
130 | unsigned int segno, vblocks; |
131 | int ndirty = 0; | |
132 | ||
133 | bimodal = 0; | |
134 | total_vblocks = 0; | |
3519e3f9 | 135 | blks_per_sec = sbi->segs_per_sec * sbi->blocks_per_seg; |
902829aa | 136 | hblks_per_sec = blks_per_sec / 2; |
7cd8558b | 137 | for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) { |
902829aa GKH |
138 | vblocks = get_valid_blocks(sbi, segno, sbi->segs_per_sec); |
139 | dist = abs(vblocks - hblks_per_sec); | |
140 | bimodal += dist * dist; | |
141 | ||
142 | if (vblocks > 0 && vblocks < blks_per_sec) { | |
143 | total_vblocks += vblocks; | |
144 | ndirty++; | |
145 | } | |
146 | } | |
7beb428e | 147 | dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100); |
1d7e10d5 | 148 | si->bimodal = div64_u64(bimodal, dist); |
902829aa | 149 | if (si->dirty_count) |
7beb428e | 150 | si->avg_vblocks = div_u64(total_vblocks, ndirty); |
902829aa GKH |
151 | else |
152 | si->avg_vblocks = 0; | |
153 | } | |
154 | ||
0a8165d7 | 155 | /* |
902829aa GKH |
156 | * This function calculates memory footprint. |
157 | */ | |
158 | static void update_mem_info(struct f2fs_sb_info *sbi) | |
159 | { | |
963d4f7d | 160 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
902829aa | 161 | unsigned npages; |
8c402946 | 162 | int i; |
902829aa GKH |
163 | |
164 | if (si->base_mem) | |
165 | goto get_cache; | |
166 | ||
70874fb3 KM |
167 | /* build stat */ |
168 | si->base_mem = sizeof(struct f2fs_stat_info); | |
169 | ||
170 | /* build superblock */ | |
171 | si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; | |
902829aa GKH |
172 | si->base_mem += 2 * sizeof(struct f2fs_inode_info); |
173 | si->base_mem += sizeof(*sbi->ckpt); | |
523be8a6 | 174 | si->base_mem += sizeof(struct percpu_counter) * NR_COUNT_TYPE; |
902829aa GKH |
175 | |
176 | /* build sm */ | |
177 | si->base_mem += sizeof(struct f2fs_sm_info); | |
178 | ||
179 | /* build sit */ | |
180 | si->base_mem += sizeof(struct sit_info); | |
7cd8558b JK |
181 | si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); |
182 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); | |
3e025740 JK |
183 | si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
184 | if (f2fs_discard_en(sbi)) | |
185 | si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); | |
60a3b782 | 186 | si->base_mem += SIT_VBLOCK_MAP_SIZE; |
902829aa | 187 | if (sbi->segs_per_sec > 1) |
7cd8558b | 188 | si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); |
902829aa GKH |
189 | si->base_mem += __bitmap_size(sbi, SIT_BITMAP); |
190 | ||
191 | /* build free segmap */ | |
192 | si->base_mem += sizeof(struct free_segmap_info); | |
7cd8558b JK |
193 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
194 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); | |
902829aa GKH |
195 | |
196 | /* build curseg */ | |
197 | si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; | |
09cbfeaf | 198 | si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; |
902829aa GKH |
199 | |
200 | /* build dirty segmap */ | |
201 | si->base_mem += sizeof(struct dirty_seglist_info); | |
7cd8558b JK |
202 | si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); |
203 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); | |
902829aa | 204 | |
e1c42045 | 205 | /* build nm */ |
902829aa GKH |
206 | si->base_mem += sizeof(struct f2fs_nm_info); |
207 | si->base_mem += __bitmap_size(sbi, NAT_BITMAP); | |
22ad0b6a | 208 | si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS); |
4ac91242 CY |
209 | si->base_mem += NM_I(sbi)->nat_blocks * NAT_ENTRY_BITMAP_SIZE; |
210 | si->base_mem += NM_I(sbi)->nat_blocks / 8; | |
586d1492 | 211 | si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); |
902829aa | 212 | |
9066c6a7 CY |
213 | get_cache: |
214 | si->cache_mem = 0; | |
215 | ||
902829aa | 216 | /* build gc */ |
9066c6a7 CY |
217 | if (sbi->gc_thread) |
218 | si->cache_mem += sizeof(struct f2fs_gc_kthread); | |
219 | ||
220 | /* build merge flush thread */ | |
b01a9201 | 221 | if (SM_I(sbi)->fcc_info) |
9066c6a7 | 222 | si->cache_mem += sizeof(struct flush_cmd_control); |
0b54fb84 JK |
223 | if (SM_I(sbi)->dcc_info) |
224 | si->cache_mem += sizeof(struct discard_cmd_control); | |
902829aa | 225 | |
902829aa | 226 | /* free nids */ |
b8559dc2 CY |
227 | si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID_LIST] + |
228 | NM_I(sbi)->nid_cnt[ALLOC_NID_LIST]) * | |
229 | sizeof(struct free_nid); | |
9066c6a7 | 230 | si->cache_mem += NM_I(sbi)->nat_cnt * sizeof(struct nat_entry); |
6f0aacbc JK |
231 | si->cache_mem += NM_I(sbi)->dirty_nat_cnt * |
232 | sizeof(struct nat_entry_set); | |
233 | si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages); | |
652be551 | 234 | for (i = 0; i <= ORPHAN_INO; i++) |
67298804 | 235 | si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); |
7441ccef JK |
236 | si->cache_mem += atomic_read(&sbi->total_ext_tree) * |
237 | sizeof(struct extent_tree); | |
4bf6fd9f CY |
238 | si->cache_mem += atomic_read(&sbi->total_ext_node) * |
239 | sizeof(struct extent_node); | |
6f0aacbc JK |
240 | |
241 | si->page_mem = 0; | |
242 | npages = NODE_MAPPING(sbi)->nrpages; | |
09cbfeaf | 243 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
6f0aacbc | 244 | npages = META_MAPPING(sbi)->nrpages; |
09cbfeaf | 245 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
902829aa GKH |
246 | } |
247 | ||
248 | static int stat_show(struct seq_file *s, void *v) | |
249 | { | |
145b04e5 | 250 | struct f2fs_stat_info *si; |
902829aa GKH |
251 | int i = 0; |
252 | int j; | |
253 | ||
66af62ce | 254 | mutex_lock(&f2fs_stat_mutex); |
145b04e5 | 255 | list_for_each_entry(si, &f2fs_stat_list, stat_list) { |
902829aa GKH |
256 | update_general_status(si->sbi); |
257 | ||
8c11a53f JK |
258 | seq_printf(s, "\n=====[ partition info(%pg). #%d, %s]=====\n", |
259 | si->sbi->sb->s_bdev, i++, | |
260 | f2fs_readonly(si->sbi->sb) ? "RO": "RW"); | |
7880ceed HL |
261 | seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", |
262 | si->sit_area_segs, si->nat_area_segs); | |
902829aa GKH |
263 | seq_printf(s, "[SSA: %d] [MAIN: %d", |
264 | si->ssa_area_segs, si->main_area_segs); | |
265 | seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", | |
266 | si->overp_segs, si->rsvd_segs); | |
f83a2584 YH |
267 | if (test_opt(si->sbi, DISCARD)) |
268 | seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", | |
269 | si->utilization, si->valid_count, si->discard_blks); | |
270 | else | |
271 | seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", | |
272 | si->utilization, si->valid_count); | |
273 | ||
902829aa GKH |
274 | seq_printf(s, " - Node: %u (Inode: %u, ", |
275 | si->valid_node_count, si->valid_inode_count); | |
276 | seq_printf(s, "Other: %u)\n - Data: %u\n", | |
277 | si->valid_node_count - si->valid_inode_count, | |
278 | si->valid_count - si->valid_node_count); | |
d5e8f6c9 CY |
279 | seq_printf(s, " - Inline_xattr Inode: %u\n", |
280 | si->inline_xattr); | |
0dbdc2ae JK |
281 | seq_printf(s, " - Inline_data Inode: %u\n", |
282 | si->inline_inode); | |
3289c061 JK |
283 | seq_printf(s, " - Inline_dentry Inode: %u\n", |
284 | si->inline_dir); | |
a00861db JK |
285 | seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", |
286 | si->orphans, si->append, si->update); | |
902829aa GKH |
287 | seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", |
288 | si->main_area_segs, si->main_area_sections, | |
289 | si->main_area_zones); | |
290 | seq_printf(s, " - COLD data: %d, %d, %d\n", | |
291 | si->curseg[CURSEG_COLD_DATA], | |
292 | si->cursec[CURSEG_COLD_DATA], | |
293 | si->curzone[CURSEG_COLD_DATA]); | |
294 | seq_printf(s, " - WARM data: %d, %d, %d\n", | |
295 | si->curseg[CURSEG_WARM_DATA], | |
296 | si->cursec[CURSEG_WARM_DATA], | |
297 | si->curzone[CURSEG_WARM_DATA]); | |
298 | seq_printf(s, " - HOT data: %d, %d, %d\n", | |
299 | si->curseg[CURSEG_HOT_DATA], | |
300 | si->cursec[CURSEG_HOT_DATA], | |
301 | si->curzone[CURSEG_HOT_DATA]); | |
302 | seq_printf(s, " - Dir dnode: %d, %d, %d\n", | |
303 | si->curseg[CURSEG_HOT_NODE], | |
304 | si->cursec[CURSEG_HOT_NODE], | |
305 | si->curzone[CURSEG_HOT_NODE]); | |
306 | seq_printf(s, " - File dnode: %d, %d, %d\n", | |
307 | si->curseg[CURSEG_WARM_NODE], | |
308 | si->cursec[CURSEG_WARM_NODE], | |
309 | si->curzone[CURSEG_WARM_NODE]); | |
310 | seq_printf(s, " - Indir nodes: %d, %d, %d\n", | |
311 | si->curseg[CURSEG_COLD_NODE], | |
312 | si->cursec[CURSEG_COLD_NODE], | |
313 | si->curzone[CURSEG_COLD_NODE]); | |
314 | seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", | |
315 | si->main_area_segs - si->dirty_count - | |
316 | si->prefree_count - si->free_segs, | |
317 | si->dirty_count); | |
318 | seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", | |
319 | si->prefree_count, si->free_segs, si->free_secs); | |
42190d2a JK |
320 | seq_printf(s, "CP calls: %d (BG: %d)\n", |
321 | si->cp_count, si->bg_cp_count); | |
902829aa GKH |
322 | seq_printf(s, "GC calls: %d (BG: %d)\n", |
323 | si->call_count, si->bg_gc); | |
e1235983 CL |
324 | seq_printf(s, " - data segments : %d (%d)\n", |
325 | si->data_segs, si->bg_data_segs); | |
326 | seq_printf(s, " - node segments : %d (%d)\n", | |
327 | si->node_segs, si->bg_node_segs); | |
328 | seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, | |
329 | si->bg_data_blks + si->bg_node_blks); | |
330 | seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, | |
331 | si->bg_data_blks); | |
332 | seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, | |
333 | si->bg_node_blks); | |
029e13cc | 334 | seq_puts(s, "\nExtent Cache:\n"); |
5b7ee374 | 335 | seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", |
91c481ff | 336 | si->hit_largest, si->hit_cached, |
029e13cc | 337 | si->hit_rbtree); |
5b7ee374 | 338 | seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", |
029e13cc | 339 | !si->total_ext ? 0 : |
5b7ee374 | 340 | div64_u64(si->hit_total * 100, si->total_ext), |
029e13cc | 341 | si->hit_total, si->total_ext); |
c00ba554 JK |
342 | seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", |
343 | si->ext_tree, si->zombie_tree, si->ext_node); | |
6c311ec6 | 344 | seq_puts(s, "\nBalancing F2FS Async:\n"); |
8b8dd65f CY |
345 | seq_printf(s, " - IO (CP: %4d, Data: %4d, Flush: (%4d %4d), " |
346 | "Discard: (%4d %4d))\n", | |
dcc9165d | 347 | si->nr_wb_cp_data, si->nr_wb_data, |
8b8dd65f CY |
348 | si->nr_flushing, si->nr_flushed, |
349 | si->nr_discarding, si->nr_discarded); | |
648d50ba CY |
350 | seq_printf(s, " - inmem: %4d, atomic IO: %4d (Max. %4d), " |
351 | "volatile IO: %4d (Max. %4d)\n", | |
352 | si->inmem_pages, si->aw_cnt, si->max_aw_cnt, | |
353 | si->vw_cnt, si->max_vw_cnt); | |
35782b23 | 354 | seq_printf(s, " - nodes: %4d in %4d\n", |
902829aa | 355 | si->ndirty_node, si->node_pages); |
35782b23 | 356 | seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", |
0f18b462 | 357 | si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); |
35782b23 | 358 | seq_printf(s, " - datas: %4d in files:%4d\n", |
33fbd510 | 359 | si->ndirty_data, si->ndirty_files); |
35782b23 | 360 | seq_printf(s, " - meta: %4d in %4d\n", |
902829aa | 361 | si->ndirty_meta, si->meta_pages); |
35782b23 | 362 | seq_printf(s, " - imeta: %4d\n", |
5bc994a0 | 363 | si->ndirty_imeta); |
dd4e4b59 JK |
364 | seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", |
365 | si->dirty_nats, si->nats, si->dirty_sits, si->sits); | |
b8559dc2 CY |
366 | seq_printf(s, " - free_nids: %9d, alloc_nids: %9d\n", |
367 | si->free_nids, si->alloc_nids); | |
2d219c51 GZ |
368 | seq_puts(s, "\nDistribution of User Blocks:"); |
369 | seq_puts(s, " [ valid | invalid | free ]\n"); | |
370 | seq_puts(s, " ["); | |
902829aa GKH |
371 | |
372 | for (j = 0; j < si->util_valid; j++) | |
2d219c51 GZ |
373 | seq_putc(s, '-'); |
374 | seq_putc(s, '|'); | |
902829aa GKH |
375 | |
376 | for (j = 0; j < si->util_invalid; j++) | |
2d219c51 GZ |
377 | seq_putc(s, '-'); |
378 | seq_putc(s, '|'); | |
902829aa GKH |
379 | |
380 | for (j = 0; j < si->util_free; j++) | |
2d219c51 GZ |
381 | seq_putc(s, '-'); |
382 | seq_puts(s, "]\n\n"); | |
b9a2c252 | 383 | seq_printf(s, "IPU: %u blocks\n", si->inplace_count); |
902829aa GKH |
384 | seq_printf(s, "SSR: %u blocks in %u segments\n", |
385 | si->block_count[SSR], si->segment_count[SSR]); | |
386 | seq_printf(s, "LFS: %u blocks in %u segments\n", | |
387 | si->block_count[LFS], si->segment_count[LFS]); | |
388 | ||
389 | /* segment usage info */ | |
390 | update_sit_info(si->sbi); | |
391 | seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", | |
392 | si->bimodal, si->avg_vblocks); | |
393 | ||
394 | /* memory footprint */ | |
395 | update_mem_info(si->sbi); | |
9edcdabf | 396 | seq_printf(s, "\nMemory: %llu KB\n", |
6f0aacbc | 397 | (si->base_mem + si->cache_mem + si->page_mem) >> 10); |
9edcdabf | 398 | seq_printf(s, " - static: %llu KB\n", |
6f0aacbc | 399 | si->base_mem >> 10); |
9edcdabf | 400 | seq_printf(s, " - cached: %llu KB\n", |
6f0aacbc | 401 | si->cache_mem >> 10); |
9edcdabf | 402 | seq_printf(s, " - paged : %llu KB\n", |
6f0aacbc | 403 | si->page_mem >> 10); |
902829aa | 404 | } |
66af62ce | 405 | mutex_unlock(&f2fs_stat_mutex); |
902829aa GKH |
406 | return 0; |
407 | } | |
408 | ||
409 | static int stat_open(struct inode *inode, struct file *file) | |
410 | { | |
411 | return single_open(file, stat_show, inode->i_private); | |
412 | } | |
413 | ||
414 | static const struct file_operations stat_fops = { | |
05e6ea26 | 415 | .owner = THIS_MODULE, |
902829aa GKH |
416 | .open = stat_open, |
417 | .read = seq_read, | |
418 | .llseek = seq_lseek, | |
419 | .release = single_release, | |
420 | }; | |
421 | ||
4589d25d | 422 | int f2fs_build_stats(struct f2fs_sb_info *sbi) |
902829aa GKH |
423 | { |
424 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
425 | struct f2fs_stat_info *si; | |
426 | ||
963d4f7d GZ |
427 | si = kzalloc(sizeof(struct f2fs_stat_info), GFP_KERNEL); |
428 | if (!si) | |
902829aa GKH |
429 | return -ENOMEM; |
430 | ||
902829aa GKH |
431 | si->all_area_segs = le32_to_cpu(raw_super->segment_count); |
432 | si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); | |
433 | si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); | |
434 | si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); | |
435 | si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); | |
436 | si->main_area_sections = le32_to_cpu(raw_super->section_count); | |
437 | si->main_area_zones = si->main_area_sections / | |
438 | le32_to_cpu(raw_super->secs_per_zone); | |
439 | si->sbi = sbi; | |
963d4f7d | 440 | sbi->stat_info = si; |
66af62ce | 441 | |
5b7ee374 CY |
442 | atomic64_set(&sbi->total_hit_ext, 0); |
443 | atomic64_set(&sbi->read_hit_rbtree, 0); | |
444 | atomic64_set(&sbi->read_hit_largest, 0); | |
445 | atomic64_set(&sbi->read_hit_cached, 0); | |
727edac5 | 446 | |
d5e8f6c9 | 447 | atomic_set(&sbi->inline_xattr, 0); |
03e14d52 CY |
448 | atomic_set(&sbi->inline_inode, 0); |
449 | atomic_set(&sbi->inline_dir, 0); | |
b9a2c252 | 450 | atomic_set(&sbi->inplace_count, 0); |
03e14d52 | 451 | |
26a28a0c | 452 | atomic_set(&sbi->aw_cnt, 0); |
648d50ba | 453 | atomic_set(&sbi->vw_cnt, 0); |
26a28a0c | 454 | atomic_set(&sbi->max_aw_cnt, 0); |
648d50ba | 455 | atomic_set(&sbi->max_vw_cnt, 0); |
26a28a0c | 456 | |
66af62ce | 457 | mutex_lock(&f2fs_stat_mutex); |
458 | list_add_tail(&si->stat_list, &f2fs_stat_list); | |
459 | mutex_unlock(&f2fs_stat_mutex); | |
460 | ||
902829aa GKH |
461 | return 0; |
462 | } | |
463 | ||
902829aa GKH |
464 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi) |
465 | { | |
963d4f7d | 466 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
902829aa | 467 | |
66af62ce | 468 | mutex_lock(&f2fs_stat_mutex); |
902829aa | 469 | list_del(&si->stat_list); |
66af62ce | 470 | mutex_unlock(&f2fs_stat_mutex); |
471 | ||
963d4f7d | 472 | kfree(si); |
902829aa GKH |
473 | } |
474 | ||
787c7b8c | 475 | int __init f2fs_create_root_stats(void) |
4589d25d | 476 | { |
c524723e YL |
477 | struct dentry *file; |
478 | ||
40e1ebe9 YL |
479 | f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); |
480 | if (!f2fs_debugfs_root) | |
787c7b8c | 481 | return -ENOMEM; |
c524723e | 482 | |
40e1ebe9 | 483 | file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, |
c524723e | 484 | NULL, &stat_fops); |
7a6c76b1 GZ |
485 | if (!file) { |
486 | debugfs_remove(f2fs_debugfs_root); | |
487 | f2fs_debugfs_root = NULL; | |
787c7b8c | 488 | return -ENOMEM; |
7a6c76b1 | 489 | } |
787c7b8c CY |
490 | |
491 | return 0; | |
4589d25d NJ |
492 | } |
493 | ||
494 | void f2fs_destroy_root_stats(void) | |
902829aa | 495 | { |
40e1ebe9 | 496 | if (!f2fs_debugfs_root) |
c524723e YL |
497 | return; |
498 | ||
40e1ebe9 YL |
499 | debugfs_remove_recursive(f2fs_debugfs_root); |
500 | f2fs_debugfs_root = NULL; | |
902829aa | 501 | } |