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>
19 static struct proc_dir_entry *f2fs_proc_root;
21 /* Sysfs support for f2fs */
23 GC_THREAD, /* struct f2fs_gc_thread */
24 SM_INFO, /* struct f2fs_sm_info */
25 DCC_INFO, /* struct discard_cmd_control */
26 NM_INFO, /* struct f2fs_nm_info */
27 F2FS_SBI, /* struct f2fs_sb_info */
28 #ifdef CONFIG_F2FS_FAULT_INJECTION
29 FAULT_INFO_RATE, /* struct f2fs_fault_info */
30 FAULT_INFO_TYPE, /* struct f2fs_fault_info */
32 RESERVED_BLOCKS, /* struct f2fs_sb_info */
36 struct attribute attr;
37 ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
38 ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
39 const char *, size_t);
45 static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
47 if (struct_type == GC_THREAD)
48 return (unsigned char *)sbi->gc_thread;
49 else if (struct_type == SM_INFO)
50 return (unsigned char *)SM_I(sbi);
51 else if (struct_type == DCC_INFO)
52 return (unsigned char *)SM_I(sbi)->dcc_info;
53 else if (struct_type == NM_INFO)
54 return (unsigned char *)NM_I(sbi);
55 else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS)
56 return (unsigned char *)sbi;
57 #ifdef CONFIG_F2FS_FAULT_INJECTION
58 else if (struct_type == FAULT_INFO_RATE ||
59 struct_type == FAULT_INFO_TYPE)
60 return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
65 static ssize_t dirty_segments_show(struct f2fs_attr *a,
66 struct f2fs_sb_info *sbi, char *buf)
68 return snprintf(buf, PAGE_SIZE, "%llu\n",
69 (unsigned long long)(dirty_segments(sbi)));
72 static ssize_t unusable_show(struct f2fs_attr *a,
73 struct f2fs_sb_info *sbi, char *buf)
77 if (test_opt(sbi, DISABLE_CHECKPOINT))
78 unusable = sbi->unusable_block_count;
80 unusable = f2fs_get_unusable_blocks(sbi);
81 return snprintf(buf, PAGE_SIZE, "%llu\n",
82 (unsigned long long)unusable);
85 static ssize_t encoding_show(struct f2fs_attr *a,
86 struct f2fs_sb_info *sbi, char *buf)
89 if (f2fs_sb_has_casefold(sbi))
90 return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
91 sbi->s_encoding->charset,
92 (sbi->s_encoding->version >> 16) & 0xff,
93 (sbi->s_encoding->version >> 8) & 0xff,
94 sbi->s_encoding->version & 0xff);
96 return snprintf(buf, PAGE_SIZE, "(none)");
99 static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
100 struct f2fs_sb_info *sbi, char *buf)
102 struct super_block *sb = sbi->sb;
104 if (!sb->s_bdev->bd_part)
105 return snprintf(buf, PAGE_SIZE, "0\n");
107 return snprintf(buf, PAGE_SIZE, "%llu\n",
108 (unsigned long long)(sbi->kbytes_written +
109 BD_PART_WRITTEN(sbi)));
112 static ssize_t features_show(struct f2fs_attr *a,
113 struct f2fs_sb_info *sbi, char *buf)
115 struct super_block *sb = sbi->sb;
118 if (!sb->s_bdev->bd_part)
119 return snprintf(buf, PAGE_SIZE, "0\n");
121 if (f2fs_sb_has_encrypt(sbi))
122 len += snprintf(buf, PAGE_SIZE - len, "%s",
124 if (f2fs_sb_has_blkzoned(sbi))
125 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
126 len ? ", " : "", "blkzoned");
127 if (f2fs_sb_has_extra_attr(sbi))
128 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
129 len ? ", " : "", "extra_attr");
130 if (f2fs_sb_has_project_quota(sbi))
131 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
132 len ? ", " : "", "projquota");
133 if (f2fs_sb_has_inode_chksum(sbi))
134 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
135 len ? ", " : "", "inode_checksum");
136 if (f2fs_sb_has_flexible_inline_xattr(sbi))
137 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
138 len ? ", " : "", "flexible_inline_xattr");
139 if (f2fs_sb_has_quota_ino(sbi))
140 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
141 len ? ", " : "", "quota_ino");
142 if (f2fs_sb_has_inode_crtime(sbi))
143 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
144 len ? ", " : "", "inode_crtime");
145 if (f2fs_sb_has_lost_found(sbi))
146 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
147 len ? ", " : "", "lost_found");
148 if (f2fs_sb_has_verity(sbi))
149 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
150 len ? ", " : "", "verity");
151 if (f2fs_sb_has_sb_chksum(sbi))
152 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
153 len ? ", " : "", "sb_checksum");
154 if (f2fs_sb_has_casefold(sbi))
155 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
156 len ? ", " : "", "casefold");
157 if (f2fs_sb_has_compression(sbi))
158 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
159 len ? ", " : "", "compression");
160 len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
161 len ? ", " : "", "pin_file");
162 len += snprintf(buf + len, PAGE_SIZE - len, "\n");
166 static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
167 struct f2fs_sb_info *sbi, char *buf)
169 return snprintf(buf, PAGE_SIZE, "%u\n", sbi->current_reserved_blocks);
172 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
173 struct f2fs_sb_info *sbi, char *buf)
175 unsigned char *ptr = NULL;
178 ptr = __struct_ptr(sbi, a->struct_type);
182 if (!strcmp(a->attr.name, "extension_list")) {
183 __u8 (*extlist)[F2FS_EXTENSION_LEN] =
184 sbi->raw_super->extension_list;
185 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
186 int hot_count = sbi->raw_super->hot_ext_count;
189 len += snprintf(buf + len, PAGE_SIZE - len,
190 "cold file extension:\n");
191 for (i = 0; i < cold_count; i++)
192 len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
195 len += snprintf(buf + len, PAGE_SIZE - len,
196 "hot file extension:\n");
197 for (i = cold_count; i < cold_count + hot_count; i++)
198 len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
203 ui = (unsigned int *)(ptr + a->offset);
205 return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
208 static ssize_t __sbi_store(struct f2fs_attr *a,
209 struct f2fs_sb_info *sbi,
210 const char *buf, size_t count)
217 ptr = __struct_ptr(sbi, a->struct_type);
221 if (!strcmp(a->attr.name, "extension_list")) {
222 const char *name = strim((char *)buf);
223 bool set = true, hot;
225 if (!strncmp(name, "[h]", 3))
227 else if (!strncmp(name, "[c]", 3))
239 if (strlen(name) >= F2FS_EXTENSION_LEN)
242 down_write(&sbi->sb_lock);
244 ret = f2fs_update_extension_list(sbi, name, hot, set);
248 ret = f2fs_commit_super(sbi, false);
250 f2fs_update_extension_list(sbi, name, hot, !set);
252 up_write(&sbi->sb_lock);
253 return ret ? ret : count;
256 ui = (unsigned int *)(ptr + a->offset);
258 ret = kstrtoul(skip_spaces(buf), 0, &t);
261 #ifdef CONFIG_F2FS_FAULT_INJECTION
262 if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
264 if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
267 if (a->struct_type == RESERVED_BLOCKS) {
268 spin_lock(&sbi->stat_lock);
269 if (t > (unsigned long)(sbi->user_block_count -
270 F2FS_OPTION(sbi).root_reserved_blocks)) {
271 spin_unlock(&sbi->stat_lock);
275 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
276 sbi->user_block_count - valid_user_blocks(sbi));
277 spin_unlock(&sbi->stat_lock);
281 if (!strcmp(a->attr.name, "discard_granularity")) {
282 if (t == 0 || t > MAX_PLIST_NUM)
290 if (!strcmp(a->attr.name, "migration_granularity")) {
291 if (t == 0 || t > sbi->segs_per_sec)
295 if (!strcmp(a->attr.name, "trim_sections"))
298 if (!strcmp(a->attr.name, "gc_urgent")) {
300 sbi->gc_mode = GC_URGENT;
301 if (sbi->gc_thread) {
302 sbi->gc_thread->gc_wake = 1;
303 wake_up_interruptible_all(
304 &sbi->gc_thread->gc_wait_queue_head);
305 wake_up_discard_thread(sbi, true);
308 sbi->gc_mode = GC_NORMAL;
312 if (!strcmp(a->attr.name, "gc_idle")) {
314 sbi->gc_mode = GC_IDLE_CB;
315 else if (t == GC_IDLE_GREEDY)
316 sbi->gc_mode = GC_IDLE_GREEDY;
318 sbi->gc_mode = GC_NORMAL;
323 if (!strcmp(a->attr.name, "iostat_enable")) {
324 sbi->iostat_enable = !!t;
325 if (!sbi->iostat_enable)
326 f2fs_reset_iostat(sbi);
330 *ui = (unsigned int)t;
335 static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
336 struct f2fs_sb_info *sbi,
337 const char *buf, size_t count)
340 bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
341 a->struct_type == GC_THREAD);
344 if (!down_read_trylock(&sbi->sb->s_umount))
347 ret = __sbi_store(a, sbi, buf, count);
349 up_read(&sbi->sb->s_umount);
354 static ssize_t f2fs_attr_show(struct kobject *kobj,
355 struct attribute *attr, char *buf)
357 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
359 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
361 return a->show ? a->show(a, sbi, buf) : 0;
364 static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
365 const char *buf, size_t len)
367 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
369 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
371 return a->store ? a->store(a, sbi, buf, len) : 0;
374 static void f2fs_sb_release(struct kobject *kobj)
376 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
378 complete(&sbi->s_kobj_unregister);
388 FEAT_FLEXIBLE_INLINE_XATTR,
398 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
399 struct f2fs_sb_info *sbi, char *buf)
404 case FEAT_ATOMIC_WRITE:
405 case FEAT_EXTRA_ATTR:
406 case FEAT_PROJECT_QUOTA:
407 case FEAT_INODE_CHECKSUM:
408 case FEAT_FLEXIBLE_INLINE_XATTR:
410 case FEAT_INODE_CRTIME:
411 case FEAT_LOST_FOUND:
413 case FEAT_SB_CHECKSUM:
415 case FEAT_COMPRESSION:
416 return snprintf(buf, PAGE_SIZE, "supported\n");
421 #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
422 static struct f2fs_attr f2fs_attr_##_name = { \
423 .attr = {.name = __stringify(_name), .mode = _mode }, \
426 .struct_type = _struct_type, \
430 #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
431 F2FS_ATTR_OFFSET(struct_type, name, 0644, \
432 f2fs_sbi_show, f2fs_sbi_store, \
433 offsetof(struct struct_name, elname))
435 #define F2FS_GENERAL_RO_ATTR(name) \
436 static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
438 #define F2FS_FEATURE_RO_ATTR(_name, _id) \
439 static struct f2fs_attr f2fs_attr_##_name = { \
440 .attr = {.name = __stringify(_name), .mode = 0444 }, \
441 .show = f2fs_feature_show, \
445 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
447 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
448 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
449 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
450 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
451 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
452 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
453 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, main_blkaddr, main_blkaddr);
454 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
455 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
456 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
457 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
458 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
459 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
460 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
461 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
462 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
463 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
464 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
465 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
466 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
467 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
468 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
469 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
470 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
471 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
472 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
473 interval_time[DISCARD_TIME]);
474 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
475 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
476 umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
477 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
478 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
479 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
480 F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
481 #ifdef CONFIG_F2FS_FAULT_INJECTION
482 F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
483 F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
485 F2FS_GENERAL_RO_ATTR(dirty_segments);
486 F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
487 F2FS_GENERAL_RO_ATTR(features);
488 F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
489 F2FS_GENERAL_RO_ATTR(unusable);
490 F2FS_GENERAL_RO_ATTR(encoding);
492 #ifdef CONFIG_FS_ENCRYPTION
493 F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
495 #ifdef CONFIG_BLK_DEV_ZONED
496 F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
498 F2FS_FEATURE_RO_ATTR(atomic_write, FEAT_ATOMIC_WRITE);
499 F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
500 F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
501 F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
502 F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
503 F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
504 F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
505 F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
506 #ifdef CONFIG_FS_VERITY
507 F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
509 F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
510 F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
511 F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
513 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
514 static struct attribute *f2fs_attrs[] = {
515 ATTR_LIST(gc_urgent_sleep_time),
516 ATTR_LIST(gc_min_sleep_time),
517 ATTR_LIST(gc_max_sleep_time),
518 ATTR_LIST(gc_no_gc_sleep_time),
520 ATTR_LIST(gc_urgent),
521 ATTR_LIST(reclaim_segments),
522 ATTR_LIST(main_blkaddr),
523 ATTR_LIST(max_small_discards),
524 ATTR_LIST(discard_granularity),
525 ATTR_LIST(batched_trim_sections),
526 ATTR_LIST(ipu_policy),
527 ATTR_LIST(min_ipu_util),
528 ATTR_LIST(min_fsync_blocks),
529 ATTR_LIST(min_seq_blocks),
530 ATTR_LIST(min_hot_blocks),
531 ATTR_LIST(min_ssr_sections),
532 ATTR_LIST(max_victim_search),
533 ATTR_LIST(migration_granularity),
534 ATTR_LIST(dir_level),
535 ATTR_LIST(ram_thresh),
536 ATTR_LIST(ra_nid_pages),
537 ATTR_LIST(dirty_nats_ratio),
538 ATTR_LIST(cp_interval),
539 ATTR_LIST(idle_interval),
540 ATTR_LIST(discard_idle_interval),
541 ATTR_LIST(gc_idle_interval),
542 ATTR_LIST(umount_discard_timeout),
543 ATTR_LIST(iostat_enable),
544 ATTR_LIST(readdir_ra),
545 ATTR_LIST(gc_pin_file_thresh),
546 ATTR_LIST(extension_list),
547 #ifdef CONFIG_F2FS_FAULT_INJECTION
548 ATTR_LIST(inject_rate),
549 ATTR_LIST(inject_type),
551 ATTR_LIST(dirty_segments),
553 ATTR_LIST(lifetime_write_kbytes),
555 ATTR_LIST(reserved_blocks),
556 ATTR_LIST(current_reserved_blocks),
560 ATTRIBUTE_GROUPS(f2fs);
562 static struct attribute *f2fs_feat_attrs[] = {
563 #ifdef CONFIG_FS_ENCRYPTION
564 ATTR_LIST(encryption),
566 #ifdef CONFIG_BLK_DEV_ZONED
567 ATTR_LIST(block_zoned),
569 ATTR_LIST(atomic_write),
570 ATTR_LIST(extra_attr),
571 ATTR_LIST(project_quota),
572 ATTR_LIST(inode_checksum),
573 ATTR_LIST(flexible_inline_xattr),
574 ATTR_LIST(quota_ino),
575 ATTR_LIST(inode_crtime),
576 ATTR_LIST(lost_found),
577 #ifdef CONFIG_FS_VERITY
580 ATTR_LIST(sb_checksum),
582 ATTR_LIST(compression),
585 ATTRIBUTE_GROUPS(f2fs_feat);
587 static const struct sysfs_ops f2fs_attr_ops = {
588 .show = f2fs_attr_show,
589 .store = f2fs_attr_store,
592 static struct kobj_type f2fs_sb_ktype = {
593 .default_groups = f2fs_groups,
594 .sysfs_ops = &f2fs_attr_ops,
595 .release = f2fs_sb_release,
598 static struct kobj_type f2fs_ktype = {
599 .sysfs_ops = &f2fs_attr_ops,
602 static struct kset f2fs_kset = {
603 .kobj = {.ktype = &f2fs_ktype},
606 static struct kobj_type f2fs_feat_ktype = {
607 .default_groups = f2fs_feat_groups,
608 .sysfs_ops = &f2fs_attr_ops,
611 static struct kobject f2fs_feat = {
615 static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
618 struct super_block *sb = seq->private;
619 struct f2fs_sb_info *sbi = F2FS_SB(sb);
620 unsigned int total_segs =
621 le32_to_cpu(sbi->raw_super->segment_count_main);
624 seq_puts(seq, "format: segment_type|valid_blocks\n"
625 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
627 for (i = 0; i < total_segs; i++) {
628 struct seg_entry *se = get_seg_entry(sbi, i);
631 seq_printf(seq, "%-10d", i);
632 seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
633 if ((i % 10) == 9 || i == (total_segs - 1))
642 static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
645 struct super_block *sb = seq->private;
646 struct f2fs_sb_info *sbi = F2FS_SB(sb);
647 unsigned int total_segs =
648 le32_to_cpu(sbi->raw_super->segment_count_main);
651 seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
652 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
654 for (i = 0; i < total_segs; i++) {
655 struct seg_entry *se = get_seg_entry(sbi, i);
657 seq_printf(seq, "%-10d", i);
658 seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
659 for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
660 seq_printf(seq, " %.2x", se->cur_valid_map[j]);
666 static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
669 struct super_block *sb = seq->private;
670 struct f2fs_sb_info *sbi = F2FS_SB(sb);
671 time64_t now = ktime_get_real_seconds();
673 if (!sbi->iostat_enable)
676 seq_printf(seq, "time: %-16llu\n", now);
679 seq_printf(seq, "app buffered: %-16llu\n",
680 sbi->write_iostat[APP_BUFFERED_IO]);
681 seq_printf(seq, "app direct: %-16llu\n",
682 sbi->write_iostat[APP_DIRECT_IO]);
683 seq_printf(seq, "app mapped: %-16llu\n",
684 sbi->write_iostat[APP_MAPPED_IO]);
687 seq_printf(seq, "fs data: %-16llu\n",
688 sbi->write_iostat[FS_DATA_IO]);
689 seq_printf(seq, "fs node: %-16llu\n",
690 sbi->write_iostat[FS_NODE_IO]);
691 seq_printf(seq, "fs meta: %-16llu\n",
692 sbi->write_iostat[FS_META_IO]);
693 seq_printf(seq, "fs gc data: %-16llu\n",
694 sbi->write_iostat[FS_GC_DATA_IO]);
695 seq_printf(seq, "fs gc node: %-16llu\n",
696 sbi->write_iostat[FS_GC_NODE_IO]);
697 seq_printf(seq, "fs cp data: %-16llu\n",
698 sbi->write_iostat[FS_CP_DATA_IO]);
699 seq_printf(seq, "fs cp node: %-16llu\n",
700 sbi->write_iostat[FS_CP_NODE_IO]);
701 seq_printf(seq, "fs cp meta: %-16llu\n",
702 sbi->write_iostat[FS_CP_META_IO]);
703 seq_printf(seq, "fs discard: %-16llu\n",
704 sbi->write_iostat[FS_DISCARD]);
709 static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
712 struct super_block *sb = seq->private;
713 struct f2fs_sb_info *sbi = F2FS_SB(sb);
714 struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
717 seq_puts(seq, "format: victim_secmap bitmaps\n");
719 for (i = 0; i < MAIN_SECS(sbi); i++) {
721 seq_printf(seq, "%-10d", i);
722 seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
723 if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
731 int __init f2fs_init_sysfs(void)
735 kobject_set_name(&f2fs_kset.kobj, "f2fs");
736 f2fs_kset.kobj.parent = fs_kobj;
737 ret = kset_register(&f2fs_kset);
741 ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
744 kobject_put(&f2fs_feat);
745 kset_unregister(&f2fs_kset);
747 f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
752 void f2fs_exit_sysfs(void)
754 kobject_put(&f2fs_feat);
755 kset_unregister(&f2fs_kset);
756 remove_proc_entry("fs/f2fs", NULL);
757 f2fs_proc_root = NULL;
760 int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
762 struct super_block *sb = sbi->sb;
765 sbi->s_kobj.kset = &f2fs_kset;
766 init_completion(&sbi->s_kobj_unregister);
767 err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
770 kobject_put(&sbi->s_kobj);
771 wait_for_completion(&sbi->s_kobj_unregister);
776 sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
779 proc_create_single_data("segment_info", S_IRUGO, sbi->s_proc,
780 segment_info_seq_show, sb);
781 proc_create_single_data("segment_bits", S_IRUGO, sbi->s_proc,
782 segment_bits_seq_show, sb);
783 proc_create_single_data("iostat_info", S_IRUGO, sbi->s_proc,
784 iostat_info_seq_show, sb);
785 proc_create_single_data("victim_bits", S_IRUGO, sbi->s_proc,
786 victim_bits_seq_show, sb);
791 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
794 remove_proc_entry("iostat_info", sbi->s_proc);
795 remove_proc_entry("segment_info", sbi->s_proc);
796 remove_proc_entry("segment_bits", sbi->s_proc);
797 remove_proc_entry("victim_bits", sbi->s_proc);
798 remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
800 kobject_del(&sbi->s_kobj);
801 kobject_put(&sbi->s_kobj);