1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
7 * Copyright (c) 2017 Chao Yu <chao@kernel.org>
9 #include <linux/compiler.h>
10 #include <linux/proc_fs.h>
11 #include <linux/f2fs_fs.h>
12 #include <linux/seq_file.h>
13 #include <linux/unicode.h>
18 #include <trace/events/f2fs.h>
20 static struct proc_dir_entry *f2fs_proc_root;
22 /* Sysfs support for f2fs */
24 GC_THREAD, /* struct f2fs_gc_thread */
25 SM_INFO, /* struct f2fs_sm_info */
26 DCC_INFO, /* struct discard_cmd_control */
27 NM_INFO, /* struct f2fs_nm_info */
28 F2FS_SBI, /* struct f2fs_sb_info */
29 #ifdef CONFIG_F2FS_STAT_FS
30 STAT_INFO, /* struct f2fs_stat_info */
32 #ifdef CONFIG_F2FS_FAULT_INJECTION
33 FAULT_INFO_RATE, /* struct f2fs_fault_info */
34 FAULT_INFO_TYPE, /* struct f2fs_fault_info */
36 RESERVED_BLOCKS, /* struct f2fs_sb_info */
40 struct attribute attr;
41 ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
42 ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
43 const char *, size_t);
49 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
50 struct f2fs_sb_info *sbi, char *buf);
52 static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
54 if (struct_type == GC_THREAD)
55 return (unsigned char *)sbi->gc_thread;
56 else if (struct_type == SM_INFO)
57 return (unsigned char *)SM_I(sbi);
58 else if (struct_type == DCC_INFO)
59 return (unsigned char *)SM_I(sbi)->dcc_info;
60 else if (struct_type == NM_INFO)
61 return (unsigned char *)NM_I(sbi);
62 else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS)
63 return (unsigned char *)sbi;
64 #ifdef CONFIG_F2FS_FAULT_INJECTION
65 else if (struct_type == FAULT_INFO_RATE ||
66 struct_type == FAULT_INFO_TYPE)
67 return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
69 #ifdef CONFIG_F2FS_STAT_FS
70 else if (struct_type == STAT_INFO)
71 return (unsigned char *)F2FS_STAT(sbi);
76 static ssize_t dirty_segments_show(struct f2fs_attr *a,
77 struct f2fs_sb_info *sbi, char *buf)
79 return sprintf(buf, "%llu\n",
80 (unsigned long long)(dirty_segments(sbi)));
83 static ssize_t free_segments_show(struct f2fs_attr *a,
84 struct f2fs_sb_info *sbi, char *buf)
86 return sprintf(buf, "%llu\n",
87 (unsigned long long)(free_segments(sbi)));
90 static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
91 struct f2fs_sb_info *sbi, char *buf)
93 return sprintf(buf, "%llu\n",
94 (unsigned long long)(sbi->kbytes_written +
95 BD_PART_WRITTEN(sbi)));
98 static ssize_t features_show(struct f2fs_attr *a,
99 struct f2fs_sb_info *sbi, char *buf)
103 if (f2fs_sb_has_encrypt(sbi))
104 len += scnprintf(buf, PAGE_SIZE - len, "%s",
106 if (f2fs_sb_has_blkzoned(sbi))
107 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
108 len ? ", " : "", "blkzoned");
109 if (f2fs_sb_has_extra_attr(sbi))
110 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
111 len ? ", " : "", "extra_attr");
112 if (f2fs_sb_has_project_quota(sbi))
113 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
114 len ? ", " : "", "projquota");
115 if (f2fs_sb_has_inode_chksum(sbi))
116 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
117 len ? ", " : "", "inode_checksum");
118 if (f2fs_sb_has_flexible_inline_xattr(sbi))
119 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
120 len ? ", " : "", "flexible_inline_xattr");
121 if (f2fs_sb_has_quota_ino(sbi))
122 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
123 len ? ", " : "", "quota_ino");
124 if (f2fs_sb_has_inode_crtime(sbi))
125 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
126 len ? ", " : "", "inode_crtime");
127 if (f2fs_sb_has_lost_found(sbi))
128 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
129 len ? ", " : "", "lost_found");
130 if (f2fs_sb_has_verity(sbi))
131 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
132 len ? ", " : "", "verity");
133 if (f2fs_sb_has_sb_chksum(sbi))
134 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
135 len ? ", " : "", "sb_checksum");
136 if (f2fs_sb_has_casefold(sbi))
137 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
138 len ? ", " : "", "casefold");
139 if (f2fs_sb_has_compression(sbi))
140 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
141 len ? ", " : "", "compression");
142 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
143 len ? ", " : "", "pin_file");
144 len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
148 static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
149 struct f2fs_sb_info *sbi, char *buf)
151 return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
154 static ssize_t unusable_show(struct f2fs_attr *a,
155 struct f2fs_sb_info *sbi, char *buf)
159 if (test_opt(sbi, DISABLE_CHECKPOINT))
160 unusable = sbi->unusable_block_count;
162 unusable = f2fs_get_unusable_blocks(sbi);
163 return sprintf(buf, "%llu\n", (unsigned long long)unusable);
166 static ssize_t encoding_show(struct f2fs_attr *a,
167 struct f2fs_sb_info *sbi, char *buf)
169 #ifdef CONFIG_UNICODE
170 struct super_block *sb = sbi->sb;
172 if (f2fs_sb_has_casefold(sbi))
173 return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
174 sb->s_encoding->charset,
175 (sb->s_encoding->version >> 16) & 0xff,
176 (sb->s_encoding->version >> 8) & 0xff,
177 sb->s_encoding->version & 0xff);
179 return sprintf(buf, "(none)");
182 static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
183 struct f2fs_sb_info *sbi, char *buf)
185 return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
188 #ifdef CONFIG_F2FS_STAT_FS
189 static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
190 struct f2fs_sb_info *sbi, char *buf)
192 struct f2fs_stat_info *si = F2FS_STAT(sbi);
194 return sprintf(buf, "%llu\n",
195 (unsigned long long)(si->tot_blks -
196 (si->bg_data_blks + si->bg_node_blks)));
199 static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
200 struct f2fs_sb_info *sbi, char *buf)
202 struct f2fs_stat_info *si = F2FS_STAT(sbi);
204 return sprintf(buf, "%llu\n",
205 (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
208 static ssize_t avg_vblocks_show(struct f2fs_attr *a,
209 struct f2fs_sb_info *sbi, char *buf)
211 struct f2fs_stat_info *si = F2FS_STAT(sbi);
213 si->dirty_count = dirty_segments(sbi);
214 f2fs_update_sit_info(sbi);
215 return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
219 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
220 struct f2fs_sb_info *sbi, char *buf)
222 return snprintf(buf, PAGE_SIZE, "%llu\n",
223 (unsigned long long)MAIN_BLKADDR(sbi));
226 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
227 struct f2fs_sb_info *sbi, char *buf)
229 unsigned char *ptr = NULL;
232 ptr = __struct_ptr(sbi, a->struct_type);
236 if (!strcmp(a->attr.name, "extension_list")) {
237 __u8 (*extlist)[F2FS_EXTENSION_LEN] =
238 sbi->raw_super->extension_list;
239 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
240 int hot_count = sbi->raw_super->hot_ext_count;
243 len += scnprintf(buf + len, PAGE_SIZE - len,
244 "cold file extension:\n");
245 for (i = 0; i < cold_count; i++)
246 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
249 len += scnprintf(buf + len, PAGE_SIZE - len,
250 "hot file extension:\n");
251 for (i = cold_count; i < cold_count + hot_count; i++)
252 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
257 ui = (unsigned int *)(ptr + a->offset);
259 return sprintf(buf, "%u\n", *ui);
262 static ssize_t __sbi_store(struct f2fs_attr *a,
263 struct f2fs_sb_info *sbi,
264 const char *buf, size_t count)
271 ptr = __struct_ptr(sbi, a->struct_type);
275 if (!strcmp(a->attr.name, "extension_list")) {
276 const char *name = strim((char *)buf);
277 bool set = true, hot;
279 if (!strncmp(name, "[h]", 3))
281 else if (!strncmp(name, "[c]", 3))
293 if (strlen(name) >= F2FS_EXTENSION_LEN)
296 down_write(&sbi->sb_lock);
298 ret = f2fs_update_extension_list(sbi, name, hot, set);
302 ret = f2fs_commit_super(sbi, false);
304 f2fs_update_extension_list(sbi, name, hot, !set);
306 up_write(&sbi->sb_lock);
307 return ret ? ret : count;
310 ui = (unsigned int *)(ptr + a->offset);
312 ret = kstrtoul(skip_spaces(buf), 0, &t);
315 #ifdef CONFIG_F2FS_FAULT_INJECTION
316 if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
318 if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
321 if (a->struct_type == RESERVED_BLOCKS) {
322 spin_lock(&sbi->stat_lock);
323 if (t > (unsigned long)(sbi->user_block_count -
324 F2FS_OPTION(sbi).root_reserved_blocks)) {
325 spin_unlock(&sbi->stat_lock);
329 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
330 sbi->user_block_count - valid_user_blocks(sbi));
331 spin_unlock(&sbi->stat_lock);
335 if (!strcmp(a->attr.name, "discard_granularity")) {
336 if (t == 0 || t > MAX_PLIST_NUM)
344 if (!strcmp(a->attr.name, "migration_granularity")) {
345 if (t == 0 || t > sbi->segs_per_sec)
349 if (!strcmp(a->attr.name, "trim_sections"))
352 if (!strcmp(a->attr.name, "gc_urgent")) {
354 sbi->gc_mode = GC_NORMAL;
356 sbi->gc_mode = GC_URGENT_HIGH;
357 if (sbi->gc_thread) {
358 sbi->gc_thread->gc_wake = 1;
359 wake_up_interruptible_all(
360 &sbi->gc_thread->gc_wait_queue_head);
361 wake_up_discard_thread(sbi, true);
364 sbi->gc_mode = GC_URGENT_LOW;
370 if (!strcmp(a->attr.name, "gc_idle")) {
371 if (t == GC_IDLE_CB) {
372 sbi->gc_mode = GC_IDLE_CB;
373 } else if (t == GC_IDLE_GREEDY) {
374 sbi->gc_mode = GC_IDLE_GREEDY;
375 } else if (t == GC_IDLE_AT) {
376 if (!sbi->am.atgc_enabled)
378 sbi->gc_mode = GC_AT;
380 sbi->gc_mode = GC_NORMAL;
385 if (!strcmp(a->attr.name, "iostat_enable")) {
386 sbi->iostat_enable = !!t;
387 if (!sbi->iostat_enable)
388 f2fs_reset_iostat(sbi);
392 if (!strcmp(a->attr.name, "iostat_period_ms")) {
393 if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
395 spin_lock(&sbi->iostat_lock);
396 sbi->iostat_period_ms = (unsigned int)t;
397 spin_unlock(&sbi->iostat_lock);
401 *ui = (unsigned int)t;
406 static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
407 struct f2fs_sb_info *sbi,
408 const char *buf, size_t count)
411 bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
412 a->struct_type == GC_THREAD);
415 if (!down_read_trylock(&sbi->sb->s_umount))
418 ret = __sbi_store(a, sbi, buf, count);
420 up_read(&sbi->sb->s_umount);
425 static ssize_t f2fs_attr_show(struct kobject *kobj,
426 struct attribute *attr, char *buf)
428 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
430 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
432 return a->show ? a->show(a, sbi, buf) : 0;
435 static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
436 const char *buf, size_t len)
438 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
440 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
442 return a->store ? a->store(a, sbi, buf, len) : 0;
445 static void f2fs_sb_release(struct kobject *kobj)
447 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
449 complete(&sbi->s_kobj_unregister);
459 FEAT_FLEXIBLE_INLINE_XATTR,
467 FEAT_TEST_DUMMY_ENCRYPTION_V2,
470 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
471 struct f2fs_sb_info *sbi, char *buf)
476 case FEAT_ATOMIC_WRITE:
477 case FEAT_EXTRA_ATTR:
478 case FEAT_PROJECT_QUOTA:
479 case FEAT_INODE_CHECKSUM:
480 case FEAT_FLEXIBLE_INLINE_XATTR:
482 case FEAT_INODE_CRTIME:
483 case FEAT_LOST_FOUND:
485 case FEAT_SB_CHECKSUM:
487 case FEAT_COMPRESSION:
488 case FEAT_TEST_DUMMY_ENCRYPTION_V2:
489 return sprintf(buf, "supported\n");
494 #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
495 static struct f2fs_attr f2fs_attr_##_name = { \
496 .attr = {.name = __stringify(_name), .mode = _mode }, \
499 .struct_type = _struct_type, \
503 #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
504 F2FS_ATTR_OFFSET(struct_type, name, 0644, \
505 f2fs_sbi_show, f2fs_sbi_store, \
506 offsetof(struct struct_name, elname))
508 #define F2FS_GENERAL_RO_ATTR(name) \
509 static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
511 #define F2FS_FEATURE_RO_ATTR(_name, _id) \
512 static struct f2fs_attr f2fs_attr_##_name = { \
513 .attr = {.name = __stringify(_name), .mode = 0444 }, \
514 .show = f2fs_feature_show, \
518 #define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
519 static struct f2fs_attr f2fs_attr_##_name = { \
520 .attr = {.name = __stringify(_name), .mode = 0444 }, \
521 .show = f2fs_sbi_show, \
522 .struct_type = _struct_type, \
523 .offset = offsetof(struct _struct_name, _elname), \
526 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
528 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
529 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
530 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
531 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
532 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
533 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
534 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
535 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
536 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
537 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
538 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
539 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
540 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
541 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
542 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
543 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
544 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
545 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
546 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
547 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
548 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
549 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
550 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
551 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
552 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
553 interval_time[DISCARD_TIME]);
554 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
555 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
556 umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
557 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
558 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
559 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
560 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
561 F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
562 #ifdef CONFIG_F2FS_FAULT_INJECTION
563 F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
564 F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
566 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
567 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
568 F2FS_GENERAL_RO_ATTR(dirty_segments);
569 F2FS_GENERAL_RO_ATTR(free_segments);
570 F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
571 F2FS_GENERAL_RO_ATTR(features);
572 F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
573 F2FS_GENERAL_RO_ATTR(unusable);
574 F2FS_GENERAL_RO_ATTR(encoding);
575 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
576 F2FS_GENERAL_RO_ATTR(main_blkaddr);
577 #ifdef CONFIG_F2FS_STAT_FS
578 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
579 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
580 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
581 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
582 F2FS_GENERAL_RO_ATTR(moved_blocks_background);
583 F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
584 F2FS_GENERAL_RO_ATTR(avg_vblocks);
587 #ifdef CONFIG_FS_ENCRYPTION
588 F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
589 F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2);
591 #ifdef CONFIG_BLK_DEV_ZONED
592 F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
594 F2FS_FEATURE_RO_ATTR(atomic_write, FEAT_ATOMIC_WRITE);
595 F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
596 F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
597 F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
598 F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
599 F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
600 F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
601 F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
602 #ifdef CONFIG_FS_VERITY
603 F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
605 F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
606 F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
607 #ifdef CONFIG_F2FS_FS_COMPRESSION
608 F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
611 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
612 static struct attribute *f2fs_attrs[] = {
613 ATTR_LIST(gc_urgent_sleep_time),
614 ATTR_LIST(gc_min_sleep_time),
615 ATTR_LIST(gc_max_sleep_time),
616 ATTR_LIST(gc_no_gc_sleep_time),
618 ATTR_LIST(gc_urgent),
619 ATTR_LIST(reclaim_segments),
620 ATTR_LIST(main_blkaddr),
621 ATTR_LIST(max_small_discards),
622 ATTR_LIST(discard_granularity),
623 ATTR_LIST(batched_trim_sections),
624 ATTR_LIST(ipu_policy),
625 ATTR_LIST(min_ipu_util),
626 ATTR_LIST(min_fsync_blocks),
627 ATTR_LIST(min_seq_blocks),
628 ATTR_LIST(min_hot_blocks),
629 ATTR_LIST(min_ssr_sections),
630 ATTR_LIST(max_victim_search),
631 ATTR_LIST(migration_granularity),
632 ATTR_LIST(dir_level),
633 ATTR_LIST(ram_thresh),
634 ATTR_LIST(ra_nid_pages),
635 ATTR_LIST(dirty_nats_ratio),
636 ATTR_LIST(cp_interval),
637 ATTR_LIST(idle_interval),
638 ATTR_LIST(discard_idle_interval),
639 ATTR_LIST(gc_idle_interval),
640 ATTR_LIST(umount_discard_timeout),
641 ATTR_LIST(iostat_enable),
642 ATTR_LIST(iostat_period_ms),
643 ATTR_LIST(readdir_ra),
644 ATTR_LIST(gc_pin_file_thresh),
645 ATTR_LIST(extension_list),
646 #ifdef CONFIG_F2FS_FAULT_INJECTION
647 ATTR_LIST(inject_rate),
648 ATTR_LIST(inject_type),
650 ATTR_LIST(data_io_flag),
651 ATTR_LIST(node_io_flag),
652 ATTR_LIST(dirty_segments),
653 ATTR_LIST(free_segments),
655 ATTR_LIST(lifetime_write_kbytes),
657 ATTR_LIST(reserved_blocks),
658 ATTR_LIST(current_reserved_blocks),
660 ATTR_LIST(mounted_time_sec),
661 #ifdef CONFIG_F2FS_STAT_FS
662 ATTR_LIST(cp_foreground_calls),
663 ATTR_LIST(cp_background_calls),
664 ATTR_LIST(gc_foreground_calls),
665 ATTR_LIST(gc_background_calls),
666 ATTR_LIST(moved_blocks_foreground),
667 ATTR_LIST(moved_blocks_background),
668 ATTR_LIST(avg_vblocks),
672 ATTRIBUTE_GROUPS(f2fs);
674 static struct attribute *f2fs_feat_attrs[] = {
675 #ifdef CONFIG_FS_ENCRYPTION
676 ATTR_LIST(encryption),
677 ATTR_LIST(test_dummy_encryption_v2),
679 #ifdef CONFIG_BLK_DEV_ZONED
680 ATTR_LIST(block_zoned),
682 ATTR_LIST(atomic_write),
683 ATTR_LIST(extra_attr),
684 ATTR_LIST(project_quota),
685 ATTR_LIST(inode_checksum),
686 ATTR_LIST(flexible_inline_xattr),
687 ATTR_LIST(quota_ino),
688 ATTR_LIST(inode_crtime),
689 ATTR_LIST(lost_found),
690 #ifdef CONFIG_FS_VERITY
693 ATTR_LIST(sb_checksum),
695 #ifdef CONFIG_F2FS_FS_COMPRESSION
696 ATTR_LIST(compression),
700 ATTRIBUTE_GROUPS(f2fs_feat);
702 static const struct sysfs_ops f2fs_attr_ops = {
703 .show = f2fs_attr_show,
704 .store = f2fs_attr_store,
707 static struct kobj_type f2fs_sb_ktype = {
708 .default_groups = f2fs_groups,
709 .sysfs_ops = &f2fs_attr_ops,
710 .release = f2fs_sb_release,
713 static struct kobj_type f2fs_ktype = {
714 .sysfs_ops = &f2fs_attr_ops,
717 static struct kset f2fs_kset = {
718 .kobj = {.ktype = &f2fs_ktype},
721 static struct kobj_type f2fs_feat_ktype = {
722 .default_groups = f2fs_feat_groups,
723 .sysfs_ops = &f2fs_attr_ops,
726 static struct kobject f2fs_feat = {
730 static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
733 struct super_block *sb = seq->private;
734 struct f2fs_sb_info *sbi = F2FS_SB(sb);
735 unsigned int total_segs =
736 le32_to_cpu(sbi->raw_super->segment_count_main);
739 seq_puts(seq, "format: segment_type|valid_blocks\n"
740 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
742 for (i = 0; i < total_segs; i++) {
743 struct seg_entry *se = get_seg_entry(sbi, i);
746 seq_printf(seq, "%-10d", i);
747 seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
748 if ((i % 10) == 9 || i == (total_segs - 1))
757 static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
760 struct super_block *sb = seq->private;
761 struct f2fs_sb_info *sbi = F2FS_SB(sb);
762 unsigned int total_segs =
763 le32_to_cpu(sbi->raw_super->segment_count_main);
766 seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
767 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
769 for (i = 0; i < total_segs; i++) {
770 struct seg_entry *se = get_seg_entry(sbi, i);
772 seq_printf(seq, "%-10d", i);
773 seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
774 for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
775 seq_printf(seq, " %.2x", se->cur_valid_map[j]);
781 void f2fs_record_iostat(struct f2fs_sb_info *sbi)
783 unsigned long long iostat_diff[NR_IO_TYPE];
786 if (time_is_after_jiffies(sbi->iostat_next_period))
789 /* Need double check under the lock */
790 spin_lock(&sbi->iostat_lock);
791 if (time_is_after_jiffies(sbi->iostat_next_period)) {
792 spin_unlock(&sbi->iostat_lock);
795 sbi->iostat_next_period = jiffies +
796 msecs_to_jiffies(sbi->iostat_period_ms);
798 for (i = 0; i < NR_IO_TYPE; i++) {
799 iostat_diff[i] = sbi->rw_iostat[i] -
800 sbi->prev_rw_iostat[i];
801 sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
803 spin_unlock(&sbi->iostat_lock);
805 trace_f2fs_iostat(sbi, iostat_diff);
808 static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
811 struct super_block *sb = seq->private;
812 struct f2fs_sb_info *sbi = F2FS_SB(sb);
813 time64_t now = ktime_get_real_seconds();
815 if (!sbi->iostat_enable)
818 seq_printf(seq, "time: %-16llu\n", now);
820 /* print app write IOs */
821 seq_puts(seq, "[WRITE]\n");
822 seq_printf(seq, "app buffered: %-16llu\n",
823 sbi->rw_iostat[APP_BUFFERED_IO]);
824 seq_printf(seq, "app direct: %-16llu\n",
825 sbi->rw_iostat[APP_DIRECT_IO]);
826 seq_printf(seq, "app mapped: %-16llu\n",
827 sbi->rw_iostat[APP_MAPPED_IO]);
829 /* print fs write IOs */
830 seq_printf(seq, "fs data: %-16llu\n",
831 sbi->rw_iostat[FS_DATA_IO]);
832 seq_printf(seq, "fs node: %-16llu\n",
833 sbi->rw_iostat[FS_NODE_IO]);
834 seq_printf(seq, "fs meta: %-16llu\n",
835 sbi->rw_iostat[FS_META_IO]);
836 seq_printf(seq, "fs gc data: %-16llu\n",
837 sbi->rw_iostat[FS_GC_DATA_IO]);
838 seq_printf(seq, "fs gc node: %-16llu\n",
839 sbi->rw_iostat[FS_GC_NODE_IO]);
840 seq_printf(seq, "fs cp data: %-16llu\n",
841 sbi->rw_iostat[FS_CP_DATA_IO]);
842 seq_printf(seq, "fs cp node: %-16llu\n",
843 sbi->rw_iostat[FS_CP_NODE_IO]);
844 seq_printf(seq, "fs cp meta: %-16llu\n",
845 sbi->rw_iostat[FS_CP_META_IO]);
847 /* print app read IOs */
848 seq_puts(seq, "[READ]\n");
849 seq_printf(seq, "app buffered: %-16llu\n",
850 sbi->rw_iostat[APP_BUFFERED_READ_IO]);
851 seq_printf(seq, "app direct: %-16llu\n",
852 sbi->rw_iostat[APP_DIRECT_READ_IO]);
853 seq_printf(seq, "app mapped: %-16llu\n",
854 sbi->rw_iostat[APP_MAPPED_READ_IO]);
856 /* print fs read IOs */
857 seq_printf(seq, "fs data: %-16llu\n",
858 sbi->rw_iostat[FS_DATA_READ_IO]);
859 seq_printf(seq, "fs gc data: %-16llu\n",
860 sbi->rw_iostat[FS_GDATA_READ_IO]);
861 seq_printf(seq, "fs compr_data: %-16llu\n",
862 sbi->rw_iostat[FS_CDATA_READ_IO]);
863 seq_printf(seq, "fs node: %-16llu\n",
864 sbi->rw_iostat[FS_NODE_READ_IO]);
865 seq_printf(seq, "fs meta: %-16llu\n",
866 sbi->rw_iostat[FS_META_READ_IO]);
868 /* print other IOs */
869 seq_puts(seq, "[OTHER]\n");
870 seq_printf(seq, "fs discard: %-16llu\n",
871 sbi->rw_iostat[FS_DISCARD]);
876 static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
879 struct super_block *sb = seq->private;
880 struct f2fs_sb_info *sbi = F2FS_SB(sb);
881 struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
884 seq_puts(seq, "format: victim_secmap bitmaps\n");
886 for (i = 0; i < MAIN_SECS(sbi); i++) {
888 seq_printf(seq, "%-10d", i);
889 seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
890 if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
898 int __init f2fs_init_sysfs(void)
902 kobject_set_name(&f2fs_kset.kobj, "f2fs");
903 f2fs_kset.kobj.parent = fs_kobj;
904 ret = kset_register(&f2fs_kset);
908 ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
911 kobject_put(&f2fs_feat);
912 kset_unregister(&f2fs_kset);
914 f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
919 void f2fs_exit_sysfs(void)
921 kobject_put(&f2fs_feat);
922 kset_unregister(&f2fs_kset);
923 remove_proc_entry("fs/f2fs", NULL);
924 f2fs_proc_root = NULL;
927 int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
929 struct super_block *sb = sbi->sb;
932 sbi->s_kobj.kset = &f2fs_kset;
933 init_completion(&sbi->s_kobj_unregister);
934 err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
937 kobject_put(&sbi->s_kobj);
938 wait_for_completion(&sbi->s_kobj_unregister);
943 sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
946 proc_create_single_data("segment_info", S_IRUGO, sbi->s_proc,
947 segment_info_seq_show, sb);
948 proc_create_single_data("segment_bits", S_IRUGO, sbi->s_proc,
949 segment_bits_seq_show, sb);
950 proc_create_single_data("iostat_info", S_IRUGO, sbi->s_proc,
951 iostat_info_seq_show, sb);
952 proc_create_single_data("victim_bits", S_IRUGO, sbi->s_proc,
953 victim_bits_seq_show, sb);
958 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
961 remove_proc_entry("iostat_info", sbi->s_proc);
962 remove_proc_entry("segment_info", sbi->s_proc);
963 remove_proc_entry("segment_bits", sbi->s_proc);
964 remove_proc_entry("victim_bits", sbi->s_proc);
965 remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
967 kobject_del(&sbi->s_kobj);
968 kobject_put(&sbi->s_kobj);
969 wait_for_completion(&sbi->s_kobj_unregister);