Commit | Line | Data |
---|---|---|
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); |
2c8a4a28 | 48 | si->ndirty_qdata = get_pages(sbi, F2FS_DIRTY_QDATA); |
5bc994a0 | 49 | si->ndirty_imeta = get_pages(sbi, F2FS_DIRTY_IMETA); |
33fbd510 CY |
50 | si->ndirty_dirs = sbi->ndirty_inode[DIR_INODE]; |
51 | si->ndirty_files = sbi->ndirty_inode[FILE_INODE]; | |
292c196a | 52 | si->nquota_files = sbi->nquota_files; |
0f18b462 | 53 | si->ndirty_all = sbi->ndirty_inode[DIRTY_META]; |
8dcf2ff7 | 54 | si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES); |
26a28a0c | 55 | si->aw_cnt = atomic_read(&sbi->aw_cnt); |
648d50ba | 56 | si->vw_cnt = atomic_read(&sbi->vw_cnt); |
26a28a0c | 57 | si->max_aw_cnt = atomic_read(&sbi->max_aw_cnt); |
648d50ba | 58 | si->max_vw_cnt = atomic_read(&sbi->max_vw_cnt); |
36951b38 CY |
59 | si->nr_wb_cp_data = get_pages(sbi, F2FS_WB_CP_DATA); |
60 | si->nr_wb_data = get_pages(sbi, F2FS_WB_DATA); | |
8b8dd65f CY |
61 | if (SM_I(sbi) && SM_I(sbi)->fcc_info) { |
62 | si->nr_flushed = | |
63 | atomic_read(&SM_I(sbi)->fcc_info->issued_flush); | |
64 | si->nr_flushing = | |
65 | atomic_read(&SM_I(sbi)->fcc_info->issing_flush); | |
14d8d5f7 CY |
66 | si->flush_list_empty = |
67 | llist_empty(&SM_I(sbi)->fcc_info->issue_list); | |
8b8dd65f CY |
68 | } |
69 | if (SM_I(sbi) && SM_I(sbi)->dcc_info) { | |
70 | si->nr_discarded = | |
71 | atomic_read(&SM_I(sbi)->dcc_info->issued_discard); | |
72 | si->nr_discarding = | |
73 | atomic_read(&SM_I(sbi)->dcc_info->issing_discard); | |
5f32366a CY |
74 | si->nr_discard_cmd = |
75 | atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); | |
d84d1cbd | 76 | si->undiscard_blks = SM_I(sbi)->dcc_info->undiscard_blks; |
8b8dd65f | 77 | } |
902829aa GKH |
78 | si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; |
79 | si->rsvd_segs = reserved_segments(sbi); | |
80 | si->overp_segs = overprovision_segments(sbi); | |
81 | si->valid_count = valid_user_blocks(sbi); | |
f83a2584 | 82 | si->discard_blks = discard_blocks(sbi); |
902829aa GKH |
83 | si->valid_node_count = valid_node_count(sbi); |
84 | si->valid_inode_count = valid_inode_count(sbi); | |
d5e8f6c9 | 85 | si->inline_xattr = atomic_read(&sbi->inline_xattr); |
03e14d52 CY |
86 | si->inline_inode = atomic_read(&sbi->inline_inode); |
87 | si->inline_dir = atomic_read(&sbi->inline_dir); | |
a00861db JK |
88 | si->append = sbi->im[APPEND_INO].ino_num; |
89 | si->update = sbi->im[UPDATE_INO].ino_num; | |
652be551 | 90 | si->orphans = sbi->im[ORPHAN_INO].ino_num; |
902829aa GKH |
91 | si->utilization = utilization(sbi); |
92 | ||
93 | si->free_segs = free_segments(sbi); | |
94 | si->free_secs = free_sections(sbi); | |
95 | si->prefree_count = prefree_segments(sbi); | |
96 | si->dirty_count = dirty_segments(sbi); | |
4ef51a8f | 97 | si->node_pages = NODE_MAPPING(sbi)->nrpages; |
9df27d98 | 98 | si->meta_pages = META_MAPPING(sbi)->nrpages; |
902829aa | 99 | si->nats = NM_I(sbi)->nat_cnt; |
dd4e4b59 JK |
100 | si->dirty_nats = NM_I(sbi)->dirty_nat_cnt; |
101 | si->sits = MAIN_SEGS(sbi); | |
102 | si->dirty_sits = SIT_I(sbi)->dirty_sentries; | |
9a4ffdf5 | 103 | si->free_nids = NM_I(sbi)->nid_cnt[FREE_NID]; |
5b0ef73c | 104 | si->avail_nids = NM_I(sbi)->available_nids; |
9a4ffdf5 | 105 | si->alloc_nids = NM_I(sbi)->nid_cnt[PREALLOC_NID]; |
902829aa | 106 | si->bg_gc = sbi->bg_gc; |
2ef79ecb CY |
107 | si->skipped_atomic_files[BG_GC] = sbi->skipped_atomic_files[BG_GC]; |
108 | si->skipped_atomic_files[FG_GC] = sbi->skipped_atomic_files[FG_GC]; | |
902829aa GKH |
109 | si->util_free = (int)(free_user_blocks(sbi) >> sbi->log_blocks_per_seg) |
110 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) | |
111 | / 2; | |
112 | si->util_valid = (int)(written_block_count(sbi) >> | |
113 | sbi->log_blocks_per_seg) | |
114 | * 100 / (int)(sbi->user_block_count >> sbi->log_blocks_per_seg) | |
115 | / 2; | |
116 | si->util_invalid = 50 - si->util_free - si->util_valid; | |
117 | for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_NODE; i++) { | |
118 | struct curseg_info *curseg = CURSEG_I(sbi, i); | |
119 | si->curseg[i] = curseg->segno; | |
4ddb1a4d JK |
120 | si->cursec[i] = GET_SEC_FROM_SEG(sbi, curseg->segno); |
121 | si->curzone[i] = GET_ZONE_FROM_SEC(sbi, si->cursec[i]); | |
902829aa GKH |
122 | } |
123 | ||
124 | for (i = 0; i < 2; i++) { | |
125 | si->segment_count[i] = sbi->segment_count[i]; | |
126 | si->block_count[i] = sbi->block_count[i]; | |
127 | } | |
b9a2c252 CL |
128 | |
129 | si->inplace_count = atomic_read(&sbi->inplace_count); | |
902829aa GKH |
130 | } |
131 | ||
0a8165d7 | 132 | /* |
902829aa GKH |
133 | * This function calculates BDF of every segments |
134 | */ | |
135 | static void update_sit_info(struct f2fs_sb_info *sbi) | |
136 | { | |
963d4f7d | 137 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
3589a919 JK |
138 | unsigned long long blks_per_sec, hblks_per_sec, total_vblocks; |
139 | unsigned long long bimodal, dist; | |
902829aa GKH |
140 | unsigned int segno, vblocks; |
141 | int ndirty = 0; | |
142 | ||
143 | bimodal = 0; | |
144 | total_vblocks = 0; | |
4ddb1a4d | 145 | blks_per_sec = BLKS_PER_SEC(sbi); |
902829aa | 146 | hblks_per_sec = blks_per_sec / 2; |
7cd8558b | 147 | for (segno = 0; segno < MAIN_SEGS(sbi); segno += sbi->segs_per_sec) { |
302bd348 | 148 | vblocks = get_valid_blocks(sbi, segno, true); |
902829aa GKH |
149 | dist = abs(vblocks - hblks_per_sec); |
150 | bimodal += dist * dist; | |
151 | ||
152 | if (vblocks > 0 && vblocks < blks_per_sec) { | |
153 | total_vblocks += vblocks; | |
154 | ndirty++; | |
155 | } | |
156 | } | |
7beb428e | 157 | dist = div_u64(MAIN_SECS(sbi) * hblks_per_sec * hblks_per_sec, 100); |
1d7e10d5 | 158 | si->bimodal = div64_u64(bimodal, dist); |
902829aa | 159 | if (si->dirty_count) |
7beb428e | 160 | si->avg_vblocks = div_u64(total_vblocks, ndirty); |
902829aa GKH |
161 | else |
162 | si->avg_vblocks = 0; | |
163 | } | |
164 | ||
0a8165d7 | 165 | /* |
902829aa GKH |
166 | * This function calculates memory footprint. |
167 | */ | |
168 | static void update_mem_info(struct f2fs_sb_info *sbi) | |
169 | { | |
963d4f7d | 170 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
902829aa | 171 | unsigned npages; |
8c402946 | 172 | int i; |
902829aa GKH |
173 | |
174 | if (si->base_mem) | |
175 | goto get_cache; | |
176 | ||
70874fb3 KM |
177 | /* build stat */ |
178 | si->base_mem = sizeof(struct f2fs_stat_info); | |
179 | ||
180 | /* build superblock */ | |
181 | si->base_mem += sizeof(struct f2fs_sb_info) + sbi->sb->s_blocksize; | |
902829aa GKH |
182 | si->base_mem += 2 * sizeof(struct f2fs_inode_info); |
183 | si->base_mem += sizeof(*sbi->ckpt); | |
184 | ||
185 | /* build sm */ | |
186 | si->base_mem += sizeof(struct f2fs_sm_info); | |
187 | ||
188 | /* build sit */ | |
189 | si->base_mem += sizeof(struct sit_info); | |
7cd8558b JK |
190 | si->base_mem += MAIN_SEGS(sbi) * sizeof(struct seg_entry); |
191 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); | |
3e025740 | 192 | si->base_mem += 2 * SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
7d20c8ab | 193 | si->base_mem += SIT_VBLOCK_MAP_SIZE * MAIN_SEGS(sbi); |
60a3b782 | 194 | si->base_mem += SIT_VBLOCK_MAP_SIZE; |
902829aa | 195 | if (sbi->segs_per_sec > 1) |
7cd8558b | 196 | si->base_mem += MAIN_SECS(sbi) * sizeof(struct sec_entry); |
902829aa GKH |
197 | si->base_mem += __bitmap_size(sbi, SIT_BITMAP); |
198 | ||
199 | /* build free segmap */ | |
200 | si->base_mem += sizeof(struct free_segmap_info); | |
7cd8558b JK |
201 | si->base_mem += f2fs_bitmap_size(MAIN_SEGS(sbi)); |
202 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); | |
902829aa GKH |
203 | |
204 | /* build curseg */ | |
205 | si->base_mem += sizeof(struct curseg_info) * NR_CURSEG_TYPE; | |
09cbfeaf | 206 | si->base_mem += PAGE_SIZE * NR_CURSEG_TYPE; |
902829aa GKH |
207 | |
208 | /* build dirty segmap */ | |
209 | si->base_mem += sizeof(struct dirty_seglist_info); | |
7cd8558b JK |
210 | si->base_mem += NR_DIRTY_TYPE * f2fs_bitmap_size(MAIN_SEGS(sbi)); |
211 | si->base_mem += f2fs_bitmap_size(MAIN_SECS(sbi)); | |
902829aa | 212 | |
e1c42045 | 213 | /* build nm */ |
902829aa GKH |
214 | si->base_mem += sizeof(struct f2fs_nm_info); |
215 | si->base_mem += __bitmap_size(sbi, NAT_BITMAP); | |
22ad0b6a | 216 | si->base_mem += (NM_I(sbi)->nat_bits_blocks << F2FS_BLKSIZE_BITS); |
e15d54d5 YH |
217 | si->base_mem += NM_I(sbi)->nat_blocks * |
218 | f2fs_bitmap_size(NAT_ENTRY_PER_BLOCK); | |
4ac91242 | 219 | si->base_mem += NM_I(sbi)->nat_blocks / 8; |
586d1492 | 220 | si->base_mem += NM_I(sbi)->nat_blocks * sizeof(unsigned short); |
902829aa | 221 | |
9066c6a7 CY |
222 | get_cache: |
223 | si->cache_mem = 0; | |
224 | ||
902829aa | 225 | /* build gc */ |
9066c6a7 CY |
226 | if (sbi->gc_thread) |
227 | si->cache_mem += sizeof(struct f2fs_gc_kthread); | |
228 | ||
229 | /* build merge flush thread */ | |
b01a9201 | 230 | if (SM_I(sbi)->fcc_info) |
9066c6a7 | 231 | si->cache_mem += sizeof(struct flush_cmd_control); |
5f32366a | 232 | if (SM_I(sbi)->dcc_info) { |
0b54fb84 | 233 | si->cache_mem += sizeof(struct discard_cmd_control); |
5f32366a CY |
234 | si->cache_mem += sizeof(struct discard_cmd) * |
235 | atomic_read(&SM_I(sbi)->dcc_info->discard_cmd_cnt); | |
236 | } | |
902829aa | 237 | |
902829aa | 238 | /* free nids */ |
9a4ffdf5 CY |
239 | si->cache_mem += (NM_I(sbi)->nid_cnt[FREE_NID] + |
240 | NM_I(sbi)->nid_cnt[PREALLOC_NID]) * | |
b8559dc2 | 241 | sizeof(struct free_nid); |
9066c6a7 | 242 | si->cache_mem += NM_I(sbi)->nat_cnt * sizeof(struct nat_entry); |
6f0aacbc JK |
243 | si->cache_mem += NM_I(sbi)->dirty_nat_cnt * |
244 | sizeof(struct nat_entry_set); | |
245 | si->cache_mem += si->inmem_pages * sizeof(struct inmem_pages); | |
b77061bf | 246 | for (i = 0; i < MAX_INO_ENTRY; i++) |
67298804 | 247 | si->cache_mem += sbi->im[i].ino_num * sizeof(struct ino_entry); |
7441ccef JK |
248 | si->cache_mem += atomic_read(&sbi->total_ext_tree) * |
249 | sizeof(struct extent_tree); | |
4bf6fd9f CY |
250 | si->cache_mem += atomic_read(&sbi->total_ext_node) * |
251 | sizeof(struct extent_node); | |
6f0aacbc JK |
252 | |
253 | si->page_mem = 0; | |
254 | npages = NODE_MAPPING(sbi)->nrpages; | |
09cbfeaf | 255 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
6f0aacbc | 256 | npages = META_MAPPING(sbi)->nrpages; |
09cbfeaf | 257 | si->page_mem += (unsigned long long)npages << PAGE_SHIFT; |
902829aa GKH |
258 | } |
259 | ||
260 | static int stat_show(struct seq_file *s, void *v) | |
261 | { | |
145b04e5 | 262 | struct f2fs_stat_info *si; |
902829aa GKH |
263 | int i = 0; |
264 | int j; | |
265 | ||
66af62ce | 266 | mutex_lock(&f2fs_stat_mutex); |
145b04e5 | 267 | list_for_each_entry(si, &f2fs_stat_list, stat_list) { |
902829aa GKH |
268 | update_general_status(si->sbi); |
269 | ||
b4b153f8 | 270 | seq_printf(s, "\n=====[ partition info(%pg). #%d, %s, CP: %s]=====\n", |
8c11a53f | 271 | si->sbi->sb->s_bdev, i++, |
b4b153f8 JK |
272 | f2fs_readonly(si->sbi->sb) ? "RO": "RW", |
273 | f2fs_cp_error(si->sbi) ? "Error": "Good"); | |
7880ceed HL |
274 | seq_printf(s, "[SB: 1] [CP: 2] [SIT: %d] [NAT: %d] ", |
275 | si->sit_area_segs, si->nat_area_segs); | |
902829aa GKH |
276 | seq_printf(s, "[SSA: %d] [MAIN: %d", |
277 | si->ssa_area_segs, si->main_area_segs); | |
278 | seq_printf(s, "(OverProv:%d Resv:%d)]\n\n", | |
279 | si->overp_segs, si->rsvd_segs); | |
f83a2584 YH |
280 | if (test_opt(si->sbi, DISCARD)) |
281 | seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", | |
282 | si->utilization, si->valid_count, si->discard_blks); | |
283 | else | |
284 | seq_printf(s, "Utilization: %u%% (%u valid blocks)\n", | |
285 | si->utilization, si->valid_count); | |
286 | ||
902829aa GKH |
287 | seq_printf(s, " - Node: %u (Inode: %u, ", |
288 | si->valid_node_count, si->valid_inode_count); | |
289 | seq_printf(s, "Other: %u)\n - Data: %u\n", | |
290 | si->valid_node_count - si->valid_inode_count, | |
291 | si->valid_count - si->valid_node_count); | |
d5e8f6c9 CY |
292 | seq_printf(s, " - Inline_xattr Inode: %u\n", |
293 | si->inline_xattr); | |
0dbdc2ae JK |
294 | seq_printf(s, " - Inline_data Inode: %u\n", |
295 | si->inline_inode); | |
3289c061 JK |
296 | seq_printf(s, " - Inline_dentry Inode: %u\n", |
297 | si->inline_dir); | |
a00861db JK |
298 | seq_printf(s, " - Orphan/Append/Update Inode: %u, %u, %u\n", |
299 | si->orphans, si->append, si->update); | |
902829aa GKH |
300 | seq_printf(s, "\nMain area: %d segs, %d secs %d zones\n", |
301 | si->main_area_segs, si->main_area_sections, | |
302 | si->main_area_zones); | |
303 | seq_printf(s, " - COLD data: %d, %d, %d\n", | |
304 | si->curseg[CURSEG_COLD_DATA], | |
305 | si->cursec[CURSEG_COLD_DATA], | |
306 | si->curzone[CURSEG_COLD_DATA]); | |
307 | seq_printf(s, " - WARM data: %d, %d, %d\n", | |
308 | si->curseg[CURSEG_WARM_DATA], | |
309 | si->cursec[CURSEG_WARM_DATA], | |
310 | si->curzone[CURSEG_WARM_DATA]); | |
311 | seq_printf(s, " - HOT data: %d, %d, %d\n", | |
312 | si->curseg[CURSEG_HOT_DATA], | |
313 | si->cursec[CURSEG_HOT_DATA], | |
314 | si->curzone[CURSEG_HOT_DATA]); | |
315 | seq_printf(s, " - Dir dnode: %d, %d, %d\n", | |
316 | si->curseg[CURSEG_HOT_NODE], | |
317 | si->cursec[CURSEG_HOT_NODE], | |
318 | si->curzone[CURSEG_HOT_NODE]); | |
319 | seq_printf(s, " - File dnode: %d, %d, %d\n", | |
320 | si->curseg[CURSEG_WARM_NODE], | |
321 | si->cursec[CURSEG_WARM_NODE], | |
322 | si->curzone[CURSEG_WARM_NODE]); | |
323 | seq_printf(s, " - Indir nodes: %d, %d, %d\n", | |
324 | si->curseg[CURSEG_COLD_NODE], | |
325 | si->cursec[CURSEG_COLD_NODE], | |
326 | si->curzone[CURSEG_COLD_NODE]); | |
327 | seq_printf(s, "\n - Valid: %d\n - Dirty: %d\n", | |
328 | si->main_area_segs - si->dirty_count - | |
329 | si->prefree_count - si->free_segs, | |
330 | si->dirty_count); | |
331 | seq_printf(s, " - Prefree: %d\n - Free: %d (%d)\n\n", | |
332 | si->prefree_count, si->free_segs, si->free_secs); | |
42190d2a JK |
333 | seq_printf(s, "CP calls: %d (BG: %d)\n", |
334 | si->cp_count, si->bg_cp_count); | |
902829aa GKH |
335 | seq_printf(s, "GC calls: %d (BG: %d)\n", |
336 | si->call_count, si->bg_gc); | |
e1235983 CL |
337 | seq_printf(s, " - data segments : %d (%d)\n", |
338 | si->data_segs, si->bg_data_segs); | |
339 | seq_printf(s, " - node segments : %d (%d)\n", | |
340 | si->node_segs, si->bg_node_segs); | |
341 | seq_printf(s, "Try to move %d blocks (BG: %d)\n", si->tot_blks, | |
342 | si->bg_data_blks + si->bg_node_blks); | |
343 | seq_printf(s, " - data blocks : %d (%d)\n", si->data_blks, | |
344 | si->bg_data_blks); | |
345 | seq_printf(s, " - node blocks : %d (%d)\n", si->node_blks, | |
346 | si->bg_node_blks); | |
2ef79ecb CY |
347 | seq_printf(s, "Skipped : atomic write %llu (%llu)\n", |
348 | si->skipped_atomic_files[BG_GC] + | |
349 | si->skipped_atomic_files[FG_GC], | |
350 | si->skipped_atomic_files[BG_GC]); | |
029e13cc | 351 | seq_puts(s, "\nExtent Cache:\n"); |
5b7ee374 | 352 | seq_printf(s, " - Hit Count: L1-1:%llu L1-2:%llu L2:%llu\n", |
91c481ff | 353 | si->hit_largest, si->hit_cached, |
029e13cc | 354 | si->hit_rbtree); |
5b7ee374 | 355 | seq_printf(s, " - Hit Ratio: %llu%% (%llu / %llu)\n", |
029e13cc | 356 | !si->total_ext ? 0 : |
5b7ee374 | 357 | div64_u64(si->hit_total * 100, si->total_ext), |
029e13cc | 358 | si->hit_total, si->total_ext); |
c00ba554 JK |
359 | seq_printf(s, " - Inner Struct Count: tree: %d(%d), node: %d\n", |
360 | si->ext_tree, si->zombie_tree, si->ext_node); | |
6c311ec6 | 361 | seq_puts(s, "\nBalancing F2FS Async:\n"); |
14d8d5f7 | 362 | seq_printf(s, " - IO (CP: %4d, Data: %4d, Flush: (%4d %4d %4d), " |
d84d1cbd | 363 | "Discard: (%4d %4d)) cmd: %4d undiscard:%4u\n", |
dcc9165d | 364 | si->nr_wb_cp_data, si->nr_wb_data, |
8b8dd65f | 365 | si->nr_flushing, si->nr_flushed, |
14d8d5f7 | 366 | si->flush_list_empty, |
5f32366a | 367 | si->nr_discarding, si->nr_discarded, |
d84d1cbd | 368 | si->nr_discard_cmd, si->undiscard_blks); |
648d50ba CY |
369 | seq_printf(s, " - inmem: %4d, atomic IO: %4d (Max. %4d), " |
370 | "volatile IO: %4d (Max. %4d)\n", | |
371 | si->inmem_pages, si->aw_cnt, si->max_aw_cnt, | |
372 | si->vw_cnt, si->max_vw_cnt); | |
35782b23 | 373 | seq_printf(s, " - nodes: %4d in %4d\n", |
902829aa | 374 | si->ndirty_node, si->node_pages); |
35782b23 | 375 | seq_printf(s, " - dents: %4d in dirs:%4d (%4d)\n", |
0f18b462 | 376 | si->ndirty_dent, si->ndirty_dirs, si->ndirty_all); |
35782b23 | 377 | seq_printf(s, " - datas: %4d in files:%4d\n", |
33fbd510 | 378 | si->ndirty_data, si->ndirty_files); |
2c8a4a28 JK |
379 | seq_printf(s, " - quota datas: %4d in quota files:%4d\n", |
380 | si->ndirty_qdata, si->nquota_files); | |
35782b23 | 381 | seq_printf(s, " - meta: %4d in %4d\n", |
902829aa | 382 | si->ndirty_meta, si->meta_pages); |
35782b23 | 383 | seq_printf(s, " - imeta: %4d\n", |
5bc994a0 | 384 | si->ndirty_imeta); |
dd4e4b59 JK |
385 | seq_printf(s, " - NATs: %9d/%9d\n - SITs: %9d/%9d\n", |
386 | si->dirty_nats, si->nats, si->dirty_sits, si->sits); | |
5b0ef73c JK |
387 | seq_printf(s, " - free_nids: %9d/%9d\n - alloc_nids: %9d\n", |
388 | si->free_nids, si->avail_nids, si->alloc_nids); | |
2d219c51 GZ |
389 | seq_puts(s, "\nDistribution of User Blocks:"); |
390 | seq_puts(s, " [ valid | invalid | free ]\n"); | |
391 | seq_puts(s, " ["); | |
902829aa GKH |
392 | |
393 | for (j = 0; j < si->util_valid; j++) | |
2d219c51 GZ |
394 | seq_putc(s, '-'); |
395 | seq_putc(s, '|'); | |
902829aa GKH |
396 | |
397 | for (j = 0; j < si->util_invalid; j++) | |
2d219c51 GZ |
398 | seq_putc(s, '-'); |
399 | seq_putc(s, '|'); | |
902829aa GKH |
400 | |
401 | for (j = 0; j < si->util_free; j++) | |
2d219c51 GZ |
402 | seq_putc(s, '-'); |
403 | seq_puts(s, "]\n\n"); | |
b9a2c252 | 404 | seq_printf(s, "IPU: %u blocks\n", si->inplace_count); |
902829aa GKH |
405 | seq_printf(s, "SSR: %u blocks in %u segments\n", |
406 | si->block_count[SSR], si->segment_count[SSR]); | |
407 | seq_printf(s, "LFS: %u blocks in %u segments\n", | |
408 | si->block_count[LFS], si->segment_count[LFS]); | |
409 | ||
410 | /* segment usage info */ | |
411 | update_sit_info(si->sbi); | |
412 | seq_printf(s, "\nBDF: %u, avg. vblocks: %u\n", | |
413 | si->bimodal, si->avg_vblocks); | |
414 | ||
415 | /* memory footprint */ | |
416 | update_mem_info(si->sbi); | |
9edcdabf | 417 | seq_printf(s, "\nMemory: %llu KB\n", |
6f0aacbc | 418 | (si->base_mem + si->cache_mem + si->page_mem) >> 10); |
9edcdabf | 419 | seq_printf(s, " - static: %llu KB\n", |
6f0aacbc | 420 | si->base_mem >> 10); |
9edcdabf | 421 | seq_printf(s, " - cached: %llu KB\n", |
6f0aacbc | 422 | si->cache_mem >> 10); |
9edcdabf | 423 | seq_printf(s, " - paged : %llu KB\n", |
6f0aacbc | 424 | si->page_mem >> 10); |
902829aa | 425 | } |
66af62ce | 426 | mutex_unlock(&f2fs_stat_mutex); |
902829aa GKH |
427 | return 0; |
428 | } | |
429 | ||
430 | static int stat_open(struct inode *inode, struct file *file) | |
431 | { | |
432 | return single_open(file, stat_show, inode->i_private); | |
433 | } | |
434 | ||
435 | static const struct file_operations stat_fops = { | |
05e6ea26 | 436 | .owner = THIS_MODULE, |
902829aa GKH |
437 | .open = stat_open, |
438 | .read = seq_read, | |
439 | .llseek = seq_lseek, | |
440 | .release = single_release, | |
441 | }; | |
442 | ||
4589d25d | 443 | int f2fs_build_stats(struct f2fs_sb_info *sbi) |
902829aa GKH |
444 | { |
445 | struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi); | |
446 | struct f2fs_stat_info *si; | |
447 | ||
acbf054d | 448 | si = f2fs_kzalloc(sbi, sizeof(struct f2fs_stat_info), GFP_KERNEL); |
963d4f7d | 449 | if (!si) |
902829aa GKH |
450 | return -ENOMEM; |
451 | ||
902829aa GKH |
452 | si->all_area_segs = le32_to_cpu(raw_super->segment_count); |
453 | si->sit_area_segs = le32_to_cpu(raw_super->segment_count_sit); | |
454 | si->nat_area_segs = le32_to_cpu(raw_super->segment_count_nat); | |
455 | si->ssa_area_segs = le32_to_cpu(raw_super->segment_count_ssa); | |
456 | si->main_area_segs = le32_to_cpu(raw_super->segment_count_main); | |
457 | si->main_area_sections = le32_to_cpu(raw_super->section_count); | |
458 | si->main_area_zones = si->main_area_sections / | |
459 | le32_to_cpu(raw_super->secs_per_zone); | |
460 | si->sbi = sbi; | |
963d4f7d | 461 | sbi->stat_info = si; |
66af62ce | 462 | |
5b7ee374 CY |
463 | atomic64_set(&sbi->total_hit_ext, 0); |
464 | atomic64_set(&sbi->read_hit_rbtree, 0); | |
465 | atomic64_set(&sbi->read_hit_largest, 0); | |
466 | atomic64_set(&sbi->read_hit_cached, 0); | |
727edac5 | 467 | |
d5e8f6c9 | 468 | atomic_set(&sbi->inline_xattr, 0); |
03e14d52 CY |
469 | atomic_set(&sbi->inline_inode, 0); |
470 | atomic_set(&sbi->inline_dir, 0); | |
b9a2c252 | 471 | atomic_set(&sbi->inplace_count, 0); |
03e14d52 | 472 | |
26a28a0c | 473 | atomic_set(&sbi->aw_cnt, 0); |
648d50ba | 474 | atomic_set(&sbi->vw_cnt, 0); |
26a28a0c | 475 | atomic_set(&sbi->max_aw_cnt, 0); |
648d50ba | 476 | atomic_set(&sbi->max_vw_cnt, 0); |
26a28a0c | 477 | |
66af62ce | 478 | mutex_lock(&f2fs_stat_mutex); |
479 | list_add_tail(&si->stat_list, &f2fs_stat_list); | |
480 | mutex_unlock(&f2fs_stat_mutex); | |
481 | ||
902829aa GKH |
482 | return 0; |
483 | } | |
484 | ||
902829aa GKH |
485 | void f2fs_destroy_stats(struct f2fs_sb_info *sbi) |
486 | { | |
963d4f7d | 487 | struct f2fs_stat_info *si = F2FS_STAT(sbi); |
902829aa | 488 | |
66af62ce | 489 | mutex_lock(&f2fs_stat_mutex); |
902829aa | 490 | list_del(&si->stat_list); |
66af62ce | 491 | mutex_unlock(&f2fs_stat_mutex); |
492 | ||
963d4f7d | 493 | kfree(si); |
902829aa GKH |
494 | } |
495 | ||
787c7b8c | 496 | int __init f2fs_create_root_stats(void) |
4589d25d | 497 | { |
c524723e YL |
498 | struct dentry *file; |
499 | ||
40e1ebe9 YL |
500 | f2fs_debugfs_root = debugfs_create_dir("f2fs", NULL); |
501 | if (!f2fs_debugfs_root) | |
787c7b8c | 502 | return -ENOMEM; |
c524723e | 503 | |
40e1ebe9 | 504 | file = debugfs_create_file("status", S_IRUGO, f2fs_debugfs_root, |
c524723e | 505 | NULL, &stat_fops); |
7a6c76b1 GZ |
506 | if (!file) { |
507 | debugfs_remove(f2fs_debugfs_root); | |
508 | f2fs_debugfs_root = NULL; | |
787c7b8c | 509 | return -ENOMEM; |
7a6c76b1 | 510 | } |
787c7b8c CY |
511 | |
512 | return 0; | |
4589d25d NJ |
513 | } |
514 | ||
515 | void f2fs_destroy_root_stats(void) | |
902829aa | 516 | { |
40e1ebe9 | 517 | if (!f2fs_debugfs_root) |
c524723e YL |
518 | return; |
519 | ||
40e1ebe9 YL |
520 | debugfs_remove_recursive(f2fs_debugfs_root); |
521 | f2fs_debugfs_root = NULL; | |
902829aa | 522 | } |