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 struct super_block *sb = sbi->sb;
95 if (!sb->s_bdev->bd_part)
96 return sprintf(buf, "0\n");
98 return sprintf(buf, "%llu\n",
99 (unsigned long long)(sbi->kbytes_written +
100 BD_PART_WRITTEN(sbi)));
103 static ssize_t features_show(struct f2fs_attr *a,
104 struct f2fs_sb_info *sbi, char *buf)
106 struct super_block *sb = sbi->sb;
109 if (!sb->s_bdev->bd_part)
110 return sprintf(buf, "0\n");
112 if (f2fs_sb_has_encrypt(sbi))
113 len += scnprintf(buf, PAGE_SIZE - len, "%s",
115 if (f2fs_sb_has_blkzoned(sbi))
116 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
117 len ? ", " : "", "blkzoned");
118 if (f2fs_sb_has_extra_attr(sbi))
119 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
120 len ? ", " : "", "extra_attr");
121 if (f2fs_sb_has_project_quota(sbi))
122 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
123 len ? ", " : "", "projquota");
124 if (f2fs_sb_has_inode_chksum(sbi))
125 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
126 len ? ", " : "", "inode_checksum");
127 if (f2fs_sb_has_flexible_inline_xattr(sbi))
128 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
129 len ? ", " : "", "flexible_inline_xattr");
130 if (f2fs_sb_has_quota_ino(sbi))
131 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
132 len ? ", " : "", "quota_ino");
133 if (f2fs_sb_has_inode_crtime(sbi))
134 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
135 len ? ", " : "", "inode_crtime");
136 if (f2fs_sb_has_lost_found(sbi))
137 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
138 len ? ", " : "", "lost_found");
139 if (f2fs_sb_has_verity(sbi))
140 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
141 len ? ", " : "", "verity");
142 if (f2fs_sb_has_sb_chksum(sbi))
143 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
144 len ? ", " : "", "sb_checksum");
145 if (f2fs_sb_has_casefold(sbi))
146 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
147 len ? ", " : "", "casefold");
148 if (f2fs_sb_has_compression(sbi))
149 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
150 len ? ", " : "", "compression");
151 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
152 len ? ", " : "", "pin_file");
153 len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
157 static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
158 struct f2fs_sb_info *sbi, char *buf)
160 return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
163 static ssize_t unusable_show(struct f2fs_attr *a,
164 struct f2fs_sb_info *sbi, char *buf)
168 if (test_opt(sbi, DISABLE_CHECKPOINT))
169 unusable = sbi->unusable_block_count;
171 unusable = f2fs_get_unusable_blocks(sbi);
172 return sprintf(buf, "%llu\n", (unsigned long long)unusable);
175 static ssize_t encoding_show(struct f2fs_attr *a,
176 struct f2fs_sb_info *sbi, char *buf)
178 #ifdef CONFIG_UNICODE
179 struct super_block *sb = sbi->sb;
181 if (f2fs_sb_has_casefold(sbi))
182 return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
183 sb->s_encoding->charset,
184 (sb->s_encoding->version >> 16) & 0xff,
185 (sb->s_encoding->version >> 8) & 0xff,
186 sb->s_encoding->version & 0xff);
188 return sprintf(buf, "(none)");
191 static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
192 struct f2fs_sb_info *sbi, char *buf)
194 return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
197 #ifdef CONFIG_F2FS_STAT_FS
198 static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
199 struct f2fs_sb_info *sbi, char *buf)
201 struct f2fs_stat_info *si = F2FS_STAT(sbi);
203 return sprintf(buf, "%llu\n",
204 (unsigned long long)(si->tot_blks -
205 (si->bg_data_blks + si->bg_node_blks)));
208 static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
209 struct f2fs_sb_info *sbi, char *buf)
211 struct f2fs_stat_info *si = F2FS_STAT(sbi);
213 return sprintf(buf, "%llu\n",
214 (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
217 static ssize_t avg_vblocks_show(struct f2fs_attr *a,
218 struct f2fs_sb_info *sbi, char *buf)
220 struct f2fs_stat_info *si = F2FS_STAT(sbi);
222 si->dirty_count = dirty_segments(sbi);
223 f2fs_update_sit_info(sbi);
224 return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
228 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
229 struct f2fs_sb_info *sbi, char *buf)
231 return snprintf(buf, PAGE_SIZE, "%llu\n",
232 (unsigned long long)MAIN_BLKADDR(sbi));
235 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
236 struct f2fs_sb_info *sbi, char *buf)
238 unsigned char *ptr = NULL;
241 ptr = __struct_ptr(sbi, a->struct_type);
245 if (!strcmp(a->attr.name, "extension_list")) {
246 __u8 (*extlist)[F2FS_EXTENSION_LEN] =
247 sbi->raw_super->extension_list;
248 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
249 int hot_count = sbi->raw_super->hot_ext_count;
252 len += scnprintf(buf + len, PAGE_SIZE - len,
253 "cold file extension:\n");
254 for (i = 0; i < cold_count; i++)
255 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
258 len += scnprintf(buf + len, PAGE_SIZE - len,
259 "hot file extension:\n");
260 for (i = cold_count; i < cold_count + hot_count; i++)
261 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
266 ui = (unsigned int *)(ptr + a->offset);
268 return sprintf(buf, "%u\n", *ui);
271 static ssize_t __sbi_store(struct f2fs_attr *a,
272 struct f2fs_sb_info *sbi,
273 const char *buf, size_t count)
280 ptr = __struct_ptr(sbi, a->struct_type);
284 if (!strcmp(a->attr.name, "extension_list")) {
285 const char *name = strim((char *)buf);
286 bool set = true, hot;
288 if (!strncmp(name, "[h]", 3))
290 else if (!strncmp(name, "[c]", 3))
302 if (strlen(name) >= F2FS_EXTENSION_LEN)
305 down_write(&sbi->sb_lock);
307 ret = f2fs_update_extension_list(sbi, name, hot, set);
311 ret = f2fs_commit_super(sbi, false);
313 f2fs_update_extension_list(sbi, name, hot, !set);
315 up_write(&sbi->sb_lock);
316 return ret ? ret : count;
319 ui = (unsigned int *)(ptr + a->offset);
321 ret = kstrtoul(skip_spaces(buf), 0, &t);
324 #ifdef CONFIG_F2FS_FAULT_INJECTION
325 if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
327 if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
330 if (a->struct_type == RESERVED_BLOCKS) {
331 spin_lock(&sbi->stat_lock);
332 if (t > (unsigned long)(sbi->user_block_count -
333 F2FS_OPTION(sbi).root_reserved_blocks -
334 sbi->blocks_per_seg *
335 SM_I(sbi)->additional_reserved_segments)) {
336 spin_unlock(&sbi->stat_lock);
340 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
341 sbi->user_block_count - valid_user_blocks(sbi));
342 spin_unlock(&sbi->stat_lock);
346 if (!strcmp(a->attr.name, "discard_granularity")) {
347 if (t == 0 || t > MAX_PLIST_NUM)
355 if (!strcmp(a->attr.name, "migration_granularity")) {
356 if (t == 0 || t > sbi->segs_per_sec)
360 if (!strcmp(a->attr.name, "trim_sections"))
363 if (!strcmp(a->attr.name, "gc_urgent")) {
365 sbi->gc_mode = GC_NORMAL;
367 sbi->gc_mode = GC_URGENT_HIGH;
368 if (sbi->gc_thread) {
369 sbi->gc_thread->gc_wake = 1;
370 wake_up_interruptible_all(
371 &sbi->gc_thread->gc_wait_queue_head);
372 wake_up_discard_thread(sbi, true);
375 sbi->gc_mode = GC_URGENT_LOW;
381 if (!strcmp(a->attr.name, "gc_idle")) {
382 if (t == GC_IDLE_CB) {
383 sbi->gc_mode = GC_IDLE_CB;
384 } else if (t == GC_IDLE_GREEDY) {
385 sbi->gc_mode = GC_IDLE_GREEDY;
386 } else if (t == GC_IDLE_AT) {
387 if (!sbi->am.atgc_enabled)
389 sbi->gc_mode = GC_IDLE_AT;
391 sbi->gc_mode = GC_NORMAL;
396 if (!strcmp(a->attr.name, "iostat_enable")) {
397 sbi->iostat_enable = !!t;
398 if (!sbi->iostat_enable)
399 f2fs_reset_iostat(sbi);
403 if (!strcmp(a->attr.name, "iostat_period_ms")) {
404 if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
406 spin_lock_irq(&sbi->iostat_lock);
407 sbi->iostat_period_ms = (unsigned int)t;
408 spin_unlock_irq(&sbi->iostat_lock);
412 *ui = (unsigned int)t;
417 static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
418 struct f2fs_sb_info *sbi,
419 const char *buf, size_t count)
422 bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
423 a->struct_type == GC_THREAD);
426 if (!down_read_trylock(&sbi->sb->s_umount))
429 ret = __sbi_store(a, sbi, buf, count);
431 up_read(&sbi->sb->s_umount);
436 static ssize_t f2fs_attr_show(struct kobject *kobj,
437 struct attribute *attr, char *buf)
439 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
441 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
443 return a->show ? a->show(a, sbi, buf) : 0;
446 static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
447 const char *buf, size_t len)
449 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
451 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
453 return a->store ? a->store(a, sbi, buf, len) : 0;
456 static void f2fs_sb_release(struct kobject *kobj)
458 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
460 complete(&sbi->s_kobj_unregister);
470 FEAT_FLEXIBLE_INLINE_XATTR,
478 FEAT_TEST_DUMMY_ENCRYPTION_V2,
481 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
482 struct f2fs_sb_info *sbi, char *buf)
487 case FEAT_ATOMIC_WRITE:
488 case FEAT_EXTRA_ATTR:
489 case FEAT_PROJECT_QUOTA:
490 case FEAT_INODE_CHECKSUM:
491 case FEAT_FLEXIBLE_INLINE_XATTR:
493 case FEAT_INODE_CRTIME:
494 case FEAT_LOST_FOUND:
496 case FEAT_SB_CHECKSUM:
498 case FEAT_COMPRESSION:
499 case FEAT_TEST_DUMMY_ENCRYPTION_V2:
500 return sprintf(buf, "supported\n");
505 #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
506 static struct f2fs_attr f2fs_attr_##_name = { \
507 .attr = {.name = __stringify(_name), .mode = _mode }, \
510 .struct_type = _struct_type, \
514 #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
515 F2FS_ATTR_OFFSET(struct_type, name, 0644, \
516 f2fs_sbi_show, f2fs_sbi_store, \
517 offsetof(struct struct_name, elname))
519 #define F2FS_GENERAL_RO_ATTR(name) \
520 static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
522 #define F2FS_FEATURE_RO_ATTR(_name, _id) \
523 static struct f2fs_attr f2fs_attr_##_name = { \
524 .attr = {.name = __stringify(_name), .mode = 0444 }, \
525 .show = f2fs_feature_show, \
529 #define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
530 static struct f2fs_attr f2fs_attr_##_name = { \
531 .attr = {.name = __stringify(_name), .mode = 0444 }, \
532 .show = f2fs_sbi_show, \
533 .struct_type = _struct_type, \
534 .offset = offsetof(struct _struct_name, _elname), \
537 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
539 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
540 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
541 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
542 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
543 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
544 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
545 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
546 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
547 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
548 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
549 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
550 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
551 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
552 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
553 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
554 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
555 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
556 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
557 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
558 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
559 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
560 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
561 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
562 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
563 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
564 interval_time[DISCARD_TIME]);
565 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
566 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
567 umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
568 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
569 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
570 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
571 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
572 F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
573 #ifdef CONFIG_F2FS_FAULT_INJECTION
574 F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
575 F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
577 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
578 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
579 F2FS_GENERAL_RO_ATTR(dirty_segments);
580 F2FS_GENERAL_RO_ATTR(free_segments);
581 F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
582 F2FS_GENERAL_RO_ATTR(features);
583 F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
584 F2FS_GENERAL_RO_ATTR(unusable);
585 F2FS_GENERAL_RO_ATTR(encoding);
586 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
587 F2FS_GENERAL_RO_ATTR(main_blkaddr);
588 #ifdef CONFIG_F2FS_STAT_FS
589 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
590 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
591 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
592 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
593 F2FS_GENERAL_RO_ATTR(moved_blocks_background);
594 F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
595 F2FS_GENERAL_RO_ATTR(avg_vblocks);
598 #ifdef CONFIG_FS_ENCRYPTION
599 F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
600 F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2);
602 #ifdef CONFIG_BLK_DEV_ZONED
603 F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
605 F2FS_FEATURE_RO_ATTR(atomic_write, FEAT_ATOMIC_WRITE);
606 F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
607 F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
608 F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
609 F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
610 F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
611 F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
612 F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
613 #ifdef CONFIG_FS_VERITY
614 F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
616 F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
617 #ifdef CONFIG_UNICODE
618 F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
620 #ifdef CONFIG_F2FS_FS_COMPRESSION
621 F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
624 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
625 static struct attribute *f2fs_attrs[] = {
626 ATTR_LIST(gc_urgent_sleep_time),
627 ATTR_LIST(gc_min_sleep_time),
628 ATTR_LIST(gc_max_sleep_time),
629 ATTR_LIST(gc_no_gc_sleep_time),
631 ATTR_LIST(gc_urgent),
632 ATTR_LIST(reclaim_segments),
633 ATTR_LIST(main_blkaddr),
634 ATTR_LIST(max_small_discards),
635 ATTR_LIST(discard_granularity),
636 ATTR_LIST(batched_trim_sections),
637 ATTR_LIST(ipu_policy),
638 ATTR_LIST(min_ipu_util),
639 ATTR_LIST(min_fsync_blocks),
640 ATTR_LIST(min_seq_blocks),
641 ATTR_LIST(min_hot_blocks),
642 ATTR_LIST(min_ssr_sections),
643 ATTR_LIST(max_victim_search),
644 ATTR_LIST(migration_granularity),
645 ATTR_LIST(dir_level),
646 ATTR_LIST(ram_thresh),
647 ATTR_LIST(ra_nid_pages),
648 ATTR_LIST(dirty_nats_ratio),
649 ATTR_LIST(cp_interval),
650 ATTR_LIST(idle_interval),
651 ATTR_LIST(discard_idle_interval),
652 ATTR_LIST(gc_idle_interval),
653 ATTR_LIST(umount_discard_timeout),
654 ATTR_LIST(iostat_enable),
655 ATTR_LIST(iostat_period_ms),
656 ATTR_LIST(readdir_ra),
657 ATTR_LIST(gc_pin_file_thresh),
658 ATTR_LIST(extension_list),
659 #ifdef CONFIG_F2FS_FAULT_INJECTION
660 ATTR_LIST(inject_rate),
661 ATTR_LIST(inject_type),
663 ATTR_LIST(data_io_flag),
664 ATTR_LIST(node_io_flag),
665 ATTR_LIST(dirty_segments),
666 ATTR_LIST(free_segments),
668 ATTR_LIST(lifetime_write_kbytes),
670 ATTR_LIST(reserved_blocks),
671 ATTR_LIST(current_reserved_blocks),
673 ATTR_LIST(mounted_time_sec),
674 #ifdef CONFIG_F2FS_STAT_FS
675 ATTR_LIST(cp_foreground_calls),
676 ATTR_LIST(cp_background_calls),
677 ATTR_LIST(gc_foreground_calls),
678 ATTR_LIST(gc_background_calls),
679 ATTR_LIST(moved_blocks_foreground),
680 ATTR_LIST(moved_blocks_background),
681 ATTR_LIST(avg_vblocks),
685 ATTRIBUTE_GROUPS(f2fs);
687 static struct attribute *f2fs_feat_attrs[] = {
688 #ifdef CONFIG_FS_ENCRYPTION
689 ATTR_LIST(encryption),
690 ATTR_LIST(test_dummy_encryption_v2),
692 #ifdef CONFIG_BLK_DEV_ZONED
693 ATTR_LIST(block_zoned),
695 ATTR_LIST(atomic_write),
696 ATTR_LIST(extra_attr),
697 ATTR_LIST(project_quota),
698 ATTR_LIST(inode_checksum),
699 ATTR_LIST(flexible_inline_xattr),
700 ATTR_LIST(quota_ino),
701 ATTR_LIST(inode_crtime),
702 ATTR_LIST(lost_found),
703 #ifdef CONFIG_FS_VERITY
706 ATTR_LIST(sb_checksum),
707 #ifdef CONFIG_UNICODE
710 #ifdef CONFIG_F2FS_FS_COMPRESSION
711 ATTR_LIST(compression),
715 ATTRIBUTE_GROUPS(f2fs_feat);
717 static const struct sysfs_ops f2fs_attr_ops = {
718 .show = f2fs_attr_show,
719 .store = f2fs_attr_store,
722 static struct kobj_type f2fs_sb_ktype = {
723 .default_groups = f2fs_groups,
724 .sysfs_ops = &f2fs_attr_ops,
725 .release = f2fs_sb_release,
728 static struct kobj_type f2fs_ktype = {
729 .sysfs_ops = &f2fs_attr_ops,
732 static struct kset f2fs_kset = {
733 .kobj = {.ktype = &f2fs_ktype},
736 static struct kobj_type f2fs_feat_ktype = {
737 .default_groups = f2fs_feat_groups,
738 .sysfs_ops = &f2fs_attr_ops,
741 static struct kobject f2fs_feat = {
745 static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
748 struct super_block *sb = seq->private;
749 struct f2fs_sb_info *sbi = F2FS_SB(sb);
750 unsigned int total_segs =
751 le32_to_cpu(sbi->raw_super->segment_count_main);
754 seq_puts(seq, "format: segment_type|valid_blocks\n"
755 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
757 for (i = 0; i < total_segs; i++) {
758 struct seg_entry *se = get_seg_entry(sbi, i);
761 seq_printf(seq, "%-10d", i);
762 seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
763 if ((i % 10) == 9 || i == (total_segs - 1))
772 static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
775 struct super_block *sb = seq->private;
776 struct f2fs_sb_info *sbi = F2FS_SB(sb);
777 unsigned int total_segs =
778 le32_to_cpu(sbi->raw_super->segment_count_main);
781 seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
782 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
784 for (i = 0; i < total_segs; i++) {
785 struct seg_entry *se = get_seg_entry(sbi, i);
787 seq_printf(seq, "%-10d", i);
788 seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
789 for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
790 seq_printf(seq, " %.2x", se->cur_valid_map[j]);
796 void f2fs_record_iostat(struct f2fs_sb_info *sbi)
798 unsigned long long iostat_diff[NR_IO_TYPE];
801 if (time_is_after_jiffies(sbi->iostat_next_period))
804 /* Need double check under the lock */
805 spin_lock(&sbi->iostat_lock);
806 if (time_is_after_jiffies(sbi->iostat_next_period)) {
807 spin_unlock(&sbi->iostat_lock);
810 sbi->iostat_next_period = jiffies +
811 msecs_to_jiffies(sbi->iostat_period_ms);
813 for (i = 0; i < NR_IO_TYPE; i++) {
814 iostat_diff[i] = sbi->rw_iostat[i] -
815 sbi->prev_rw_iostat[i];
816 sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
818 spin_unlock(&sbi->iostat_lock);
820 trace_f2fs_iostat(sbi, iostat_diff);
823 static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
826 struct super_block *sb = seq->private;
827 struct f2fs_sb_info *sbi = F2FS_SB(sb);
828 time64_t now = ktime_get_real_seconds();
830 if (!sbi->iostat_enable)
833 seq_printf(seq, "time: %-16llu\n", now);
835 /* print app write IOs */
836 seq_puts(seq, "[WRITE]\n");
837 seq_printf(seq, "app buffered: %-16llu\n",
838 sbi->rw_iostat[APP_BUFFERED_IO]);
839 seq_printf(seq, "app direct: %-16llu\n",
840 sbi->rw_iostat[APP_DIRECT_IO]);
841 seq_printf(seq, "app mapped: %-16llu\n",
842 sbi->rw_iostat[APP_MAPPED_IO]);
844 /* print fs write IOs */
845 seq_printf(seq, "fs data: %-16llu\n",
846 sbi->rw_iostat[FS_DATA_IO]);
847 seq_printf(seq, "fs node: %-16llu\n",
848 sbi->rw_iostat[FS_NODE_IO]);
849 seq_printf(seq, "fs meta: %-16llu\n",
850 sbi->rw_iostat[FS_META_IO]);
851 seq_printf(seq, "fs gc data: %-16llu\n",
852 sbi->rw_iostat[FS_GC_DATA_IO]);
853 seq_printf(seq, "fs gc node: %-16llu\n",
854 sbi->rw_iostat[FS_GC_NODE_IO]);
855 seq_printf(seq, "fs cp data: %-16llu\n",
856 sbi->rw_iostat[FS_CP_DATA_IO]);
857 seq_printf(seq, "fs cp node: %-16llu\n",
858 sbi->rw_iostat[FS_CP_NODE_IO]);
859 seq_printf(seq, "fs cp meta: %-16llu\n",
860 sbi->rw_iostat[FS_CP_META_IO]);
862 /* print app read IOs */
863 seq_puts(seq, "[READ]\n");
864 seq_printf(seq, "app buffered: %-16llu\n",
865 sbi->rw_iostat[APP_BUFFERED_READ_IO]);
866 seq_printf(seq, "app direct: %-16llu\n",
867 sbi->rw_iostat[APP_DIRECT_READ_IO]);
868 seq_printf(seq, "app mapped: %-16llu\n",
869 sbi->rw_iostat[APP_MAPPED_READ_IO]);
871 /* print fs read IOs */
872 seq_printf(seq, "fs data: %-16llu\n",
873 sbi->rw_iostat[FS_DATA_READ_IO]);
874 seq_printf(seq, "fs gc data: %-16llu\n",
875 sbi->rw_iostat[FS_GDATA_READ_IO]);
876 seq_printf(seq, "fs compr_data: %-16llu\n",
877 sbi->rw_iostat[FS_CDATA_READ_IO]);
878 seq_printf(seq, "fs node: %-16llu\n",
879 sbi->rw_iostat[FS_NODE_READ_IO]);
880 seq_printf(seq, "fs meta: %-16llu\n",
881 sbi->rw_iostat[FS_META_READ_IO]);
883 /* print other IOs */
884 seq_puts(seq, "[OTHER]\n");
885 seq_printf(seq, "fs discard: %-16llu\n",
886 sbi->rw_iostat[FS_DISCARD]);
891 static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
894 struct super_block *sb = seq->private;
895 struct f2fs_sb_info *sbi = F2FS_SB(sb);
896 struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
899 seq_puts(seq, "format: victim_secmap bitmaps\n");
901 for (i = 0; i < MAIN_SECS(sbi); i++) {
903 seq_printf(seq, "%-10d", i);
904 seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
905 if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
913 int __init f2fs_init_sysfs(void)
917 kobject_set_name(&f2fs_kset.kobj, "f2fs");
918 f2fs_kset.kobj.parent = fs_kobj;
919 ret = kset_register(&f2fs_kset);
923 ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
926 kobject_put(&f2fs_feat);
927 kset_unregister(&f2fs_kset);
929 f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
934 void f2fs_exit_sysfs(void)
936 kobject_put(&f2fs_feat);
937 kset_unregister(&f2fs_kset);
938 remove_proc_entry("fs/f2fs", NULL);
939 f2fs_proc_root = NULL;
942 int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
944 struct super_block *sb = sbi->sb;
947 sbi->s_kobj.kset = &f2fs_kset;
948 init_completion(&sbi->s_kobj_unregister);
949 err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
952 kobject_put(&sbi->s_kobj);
953 wait_for_completion(&sbi->s_kobj_unregister);
958 sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
961 proc_create_single_data("segment_info", S_IRUGO, sbi->s_proc,
962 segment_info_seq_show, sb);
963 proc_create_single_data("segment_bits", S_IRUGO, sbi->s_proc,
964 segment_bits_seq_show, sb);
965 proc_create_single_data("iostat_info", S_IRUGO, sbi->s_proc,
966 iostat_info_seq_show, sb);
967 proc_create_single_data("victim_bits", S_IRUGO, sbi->s_proc,
968 victim_bits_seq_show, sb);
973 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
976 remove_proc_entry("iostat_info", sbi->s_proc);
977 remove_proc_entry("segment_info", sbi->s_proc);
978 remove_proc_entry("segment_bits", sbi->s_proc);
979 remove_proc_entry("victim_bits", sbi->s_proc);
980 remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
982 kobject_del(&sbi->s_kobj);
983 kobject_put(&sbi->s_kobj);
984 wait_for_completion(&sbi->s_kobj_unregister);