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>
14 #include <linux/ioprio.h>
15 #include <linux/sysfs.h>
20 #include <trace/events/f2fs.h>
22 static struct proc_dir_entry *f2fs_proc_root;
24 /* Sysfs support for f2fs */
26 GC_THREAD, /* struct f2fs_gc_thread */
27 SM_INFO, /* struct f2fs_sm_info */
28 DCC_INFO, /* struct discard_cmd_control */
29 NM_INFO, /* struct f2fs_nm_info */
30 F2FS_SBI, /* struct f2fs_sb_info */
31 #ifdef CONFIG_F2FS_STAT_FS
32 STAT_INFO, /* struct f2fs_stat_info */
34 #ifdef CONFIG_F2FS_FAULT_INJECTION
35 FAULT_INFO_RATE, /* struct f2fs_fault_info */
36 FAULT_INFO_TYPE, /* struct f2fs_fault_info */
38 RESERVED_BLOCKS, /* struct f2fs_sb_info */
39 CPRC_INFO, /* struct ckpt_req_control */
40 ATGC_INFO, /* struct atgc_management */
44 struct attribute attr;
45 ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
46 ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
47 const char *, size_t);
53 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
54 struct f2fs_sb_info *sbi, char *buf);
56 static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
58 if (struct_type == GC_THREAD)
59 return (unsigned char *)sbi->gc_thread;
60 else if (struct_type == SM_INFO)
61 return (unsigned char *)SM_I(sbi);
62 else if (struct_type == DCC_INFO)
63 return (unsigned char *)SM_I(sbi)->dcc_info;
64 else if (struct_type == NM_INFO)
65 return (unsigned char *)NM_I(sbi);
66 else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS)
67 return (unsigned char *)sbi;
68 #ifdef CONFIG_F2FS_FAULT_INJECTION
69 else if (struct_type == FAULT_INFO_RATE ||
70 struct_type == FAULT_INFO_TYPE)
71 return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
73 #ifdef CONFIG_F2FS_STAT_FS
74 else if (struct_type == STAT_INFO)
75 return (unsigned char *)F2FS_STAT(sbi);
77 else if (struct_type == CPRC_INFO)
78 return (unsigned char *)&sbi->cprc_info;
79 else if (struct_type == ATGC_INFO)
80 return (unsigned char *)&sbi->am;
84 static ssize_t dirty_segments_show(struct f2fs_attr *a,
85 struct f2fs_sb_info *sbi, char *buf)
87 return sprintf(buf, "%llu\n",
88 (unsigned long long)(dirty_segments(sbi)));
91 static ssize_t free_segments_show(struct f2fs_attr *a,
92 struct f2fs_sb_info *sbi, char *buf)
94 return sprintf(buf, "%llu\n",
95 (unsigned long long)(free_segments(sbi)));
98 static ssize_t ovp_segments_show(struct f2fs_attr *a,
99 struct f2fs_sb_info *sbi, char *buf)
101 return sprintf(buf, "%llu\n",
102 (unsigned long long)(overprovision_segments(sbi)));
105 static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
106 struct f2fs_sb_info *sbi, char *buf)
108 return sprintf(buf, "%llu\n",
109 (unsigned long long)(sbi->kbytes_written +
110 ((f2fs_get_sectors_written(sbi) -
111 sbi->sectors_written_start) >> 1)));
114 static ssize_t sb_status_show(struct f2fs_attr *a,
115 struct f2fs_sb_info *sbi, char *buf)
117 return sprintf(buf, "%lx\n", sbi->s_flag);
120 static ssize_t features_show(struct f2fs_attr *a,
121 struct f2fs_sb_info *sbi, char *buf)
125 if (f2fs_sb_has_encrypt(sbi))
126 len += scnprintf(buf, PAGE_SIZE - len, "%s",
128 if (f2fs_sb_has_blkzoned(sbi))
129 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
130 len ? ", " : "", "blkzoned");
131 if (f2fs_sb_has_extra_attr(sbi))
132 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
133 len ? ", " : "", "extra_attr");
134 if (f2fs_sb_has_project_quota(sbi))
135 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
136 len ? ", " : "", "projquota");
137 if (f2fs_sb_has_inode_chksum(sbi))
138 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
139 len ? ", " : "", "inode_checksum");
140 if (f2fs_sb_has_flexible_inline_xattr(sbi))
141 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
142 len ? ", " : "", "flexible_inline_xattr");
143 if (f2fs_sb_has_quota_ino(sbi))
144 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
145 len ? ", " : "", "quota_ino");
146 if (f2fs_sb_has_inode_crtime(sbi))
147 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
148 len ? ", " : "", "inode_crtime");
149 if (f2fs_sb_has_lost_found(sbi))
150 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
151 len ? ", " : "", "lost_found");
152 if (f2fs_sb_has_verity(sbi))
153 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
154 len ? ", " : "", "verity");
155 if (f2fs_sb_has_sb_chksum(sbi))
156 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
157 len ? ", " : "", "sb_checksum");
158 if (f2fs_sb_has_casefold(sbi))
159 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
160 len ? ", " : "", "casefold");
161 if (f2fs_sb_has_readonly(sbi))
162 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
163 len ? ", " : "", "readonly");
164 if (f2fs_sb_has_compression(sbi))
165 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
166 len ? ", " : "", "compression");
167 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
168 len ? ", " : "", "pin_file");
169 len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
173 static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
174 struct f2fs_sb_info *sbi, char *buf)
176 return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
179 static ssize_t unusable_show(struct f2fs_attr *a,
180 struct f2fs_sb_info *sbi, char *buf)
184 if (test_opt(sbi, DISABLE_CHECKPOINT))
185 unusable = sbi->unusable_block_count;
187 unusable = f2fs_get_unusable_blocks(sbi);
188 return sprintf(buf, "%llu\n", (unsigned long long)unusable);
191 static ssize_t encoding_show(struct f2fs_attr *a,
192 struct f2fs_sb_info *sbi, char *buf)
194 #ifdef CONFIG_UNICODE
195 struct super_block *sb = sbi->sb;
197 if (f2fs_sb_has_casefold(sbi))
198 return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
199 sb->s_encoding->charset,
200 (sb->s_encoding->version >> 16) & 0xff,
201 (sb->s_encoding->version >> 8) & 0xff,
202 sb->s_encoding->version & 0xff);
204 return sprintf(buf, "(none)");
207 static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
208 struct f2fs_sb_info *sbi, char *buf)
210 return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
213 #ifdef CONFIG_F2FS_STAT_FS
214 static ssize_t moved_blocks_foreground_show(struct f2fs_attr *a,
215 struct f2fs_sb_info *sbi, char *buf)
217 struct f2fs_stat_info *si = F2FS_STAT(sbi);
219 return sprintf(buf, "%llu\n",
220 (unsigned long long)(si->tot_blks -
221 (si->bg_data_blks + si->bg_node_blks)));
224 static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
225 struct f2fs_sb_info *sbi, char *buf)
227 struct f2fs_stat_info *si = F2FS_STAT(sbi);
229 return sprintf(buf, "%llu\n",
230 (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
233 static ssize_t avg_vblocks_show(struct f2fs_attr *a,
234 struct f2fs_sb_info *sbi, char *buf)
236 struct f2fs_stat_info *si = F2FS_STAT(sbi);
238 si->dirty_count = dirty_segments(sbi);
239 f2fs_update_sit_info(sbi);
240 return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
244 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
245 struct f2fs_sb_info *sbi, char *buf)
247 return snprintf(buf, PAGE_SIZE, "%llu\n",
248 (unsigned long long)MAIN_BLKADDR(sbi));
251 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
252 struct f2fs_sb_info *sbi, char *buf)
254 unsigned char *ptr = NULL;
257 ptr = __struct_ptr(sbi, a->struct_type);
261 if (!strcmp(a->attr.name, "extension_list")) {
262 __u8 (*extlist)[F2FS_EXTENSION_LEN] =
263 sbi->raw_super->extension_list;
264 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
265 int hot_count = sbi->raw_super->hot_ext_count;
268 len += scnprintf(buf + len, PAGE_SIZE - len,
269 "cold file extension:\n");
270 for (i = 0; i < cold_count; i++)
271 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
274 len += scnprintf(buf + len, PAGE_SIZE - len,
275 "hot file extension:\n");
276 for (i = cold_count; i < cold_count + hot_count; i++)
277 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
282 if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
283 struct ckpt_req_control *cprc = &sbi->cprc_info;
285 int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio);
286 int data = IOPRIO_PRIO_DATA(cprc->ckpt_thread_ioprio);
288 if (class == IOPRIO_CLASS_RT)
289 len += scnprintf(buf + len, PAGE_SIZE - len, "rt,");
290 else if (class == IOPRIO_CLASS_BE)
291 len += scnprintf(buf + len, PAGE_SIZE - len, "be,");
295 len += scnprintf(buf + len, PAGE_SIZE - len, "%d\n", data);
299 #ifdef CONFIG_F2FS_FS_COMPRESSION
300 if (!strcmp(a->attr.name, "compr_written_block"))
301 return sysfs_emit(buf, "%llu\n", sbi->compr_written_block);
303 if (!strcmp(a->attr.name, "compr_saved_block"))
304 return sysfs_emit(buf, "%llu\n", sbi->compr_saved_block);
306 if (!strcmp(a->attr.name, "compr_new_inode"))
307 return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
310 if (!strcmp(a->attr.name, "gc_segment_mode"))
311 return sysfs_emit(buf, "%u\n", sbi->gc_segment_mode);
313 if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
314 return sysfs_emit(buf, "%u\n",
315 sbi->gc_reclaimed_segs[sbi->gc_segment_mode]);
318 ui = (unsigned int *)(ptr + a->offset);
320 return sprintf(buf, "%u\n", *ui);
323 static ssize_t __sbi_store(struct f2fs_attr *a,
324 struct f2fs_sb_info *sbi,
325 const char *buf, size_t count)
332 ptr = __struct_ptr(sbi, a->struct_type);
336 if (!strcmp(a->attr.name, "extension_list")) {
337 const char *name = strim((char *)buf);
338 bool set = true, hot;
340 if (!strncmp(name, "[h]", 3))
342 else if (!strncmp(name, "[c]", 3))
354 if (!strlen(name) || strlen(name) >= F2FS_EXTENSION_LEN)
357 down_write(&sbi->sb_lock);
359 ret = f2fs_update_extension_list(sbi, name, hot, set);
363 ret = f2fs_commit_super(sbi, false);
365 f2fs_update_extension_list(sbi, name, hot, !set);
367 up_write(&sbi->sb_lock);
368 return ret ? ret : count;
371 if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
372 const char *name = strim((char *)buf);
373 struct ckpt_req_control *cprc = &sbi->cprc_info;
378 if (!strncmp(name, "rt,", 3))
379 class = IOPRIO_CLASS_RT;
380 else if (!strncmp(name, "be,", 3))
381 class = IOPRIO_CLASS_BE;
386 ret = kstrtol(name, 10, &data);
389 if (data >= IOPRIO_BE_NR || data < 0)
392 cprc->ckpt_thread_ioprio = IOPRIO_PRIO_VALUE(class, data);
393 if (test_opt(sbi, MERGE_CHECKPOINT)) {
394 ret = set_task_ioprio(cprc->f2fs_issue_ckpt,
395 cprc->ckpt_thread_ioprio);
403 ui = (unsigned int *)(ptr + a->offset);
405 ret = kstrtoul(skip_spaces(buf), 0, &t);
408 #ifdef CONFIG_F2FS_FAULT_INJECTION
409 if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
411 if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
414 if (a->struct_type == RESERVED_BLOCKS) {
415 spin_lock(&sbi->stat_lock);
416 if (t > (unsigned long)(sbi->user_block_count -
417 F2FS_OPTION(sbi).root_reserved_blocks)) {
418 spin_unlock(&sbi->stat_lock);
422 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
423 sbi->user_block_count - valid_user_blocks(sbi));
424 spin_unlock(&sbi->stat_lock);
428 if (!strcmp(a->attr.name, "discard_granularity")) {
429 if (t == 0 || t > MAX_PLIST_NUM)
431 if (!f2fs_block_unit_discard(sbi))
439 if (!strcmp(a->attr.name, "migration_granularity")) {
440 if (t == 0 || t > sbi->segs_per_sec)
444 if (!strcmp(a->attr.name, "trim_sections"))
447 if (!strcmp(a->attr.name, "gc_urgent")) {
449 sbi->gc_mode = GC_NORMAL;
451 sbi->gc_mode = GC_URGENT_HIGH;
452 if (sbi->gc_thread) {
453 sbi->gc_thread->gc_wake = 1;
454 wake_up_interruptible_all(
455 &sbi->gc_thread->gc_wait_queue_head);
456 wake_up_discard_thread(sbi, true);
459 sbi->gc_mode = GC_URGENT_LOW;
465 if (!strcmp(a->attr.name, "gc_idle")) {
466 if (t == GC_IDLE_CB) {
467 sbi->gc_mode = GC_IDLE_CB;
468 } else if (t == GC_IDLE_GREEDY) {
469 sbi->gc_mode = GC_IDLE_GREEDY;
470 } else if (t == GC_IDLE_AT) {
471 if (!sbi->am.atgc_enabled)
473 sbi->gc_mode = GC_AT;
475 sbi->gc_mode = GC_NORMAL;
480 if (!strcmp(a->attr.name, "iostat_enable")) {
481 sbi->iostat_enable = !!t;
482 if (!sbi->iostat_enable)
483 f2fs_reset_iostat(sbi);
487 if (!strcmp(a->attr.name, "iostat_period_ms")) {
488 if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
490 spin_lock(&sbi->iostat_lock);
491 sbi->iostat_period_ms = (unsigned int)t;
492 spin_unlock(&sbi->iostat_lock);
496 #ifdef CONFIG_F2FS_FS_COMPRESSION
497 if (!strcmp(a->attr.name, "compr_written_block") ||
498 !strcmp(a->attr.name, "compr_saved_block")) {
501 sbi->compr_written_block = 0;
502 sbi->compr_saved_block = 0;
506 if (!strcmp(a->attr.name, "compr_new_inode")) {
509 sbi->compr_new_inode = 0;
514 if (!strcmp(a->attr.name, "atgc_candidate_ratio")) {
517 sbi->am.candidate_ratio = t;
521 if (!strcmp(a->attr.name, "atgc_age_weight")) {
524 sbi->am.age_weight = t;
528 if (!strcmp(a->attr.name, "gc_segment_mode")) {
530 sbi->gc_segment_mode = t;
536 if (!strcmp(a->attr.name, "gc_reclaimed_segments")) {
539 sbi->gc_reclaimed_segs[sbi->gc_segment_mode] = 0;
543 if (!strcmp(a->attr.name, "seq_file_ra_mul")) {
544 if (t >= MIN_RA_MUL && t <= MAX_RA_MUL)
545 sbi->seq_file_ra_mul = t;
551 *ui = (unsigned int)t;
556 static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
557 struct f2fs_sb_info *sbi,
558 const char *buf, size_t count)
561 bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
562 a->struct_type == GC_THREAD);
565 if (!down_read_trylock(&sbi->sb->s_umount))
568 ret = __sbi_store(a, sbi, buf, count);
570 up_read(&sbi->sb->s_umount);
575 static ssize_t f2fs_attr_show(struct kobject *kobj,
576 struct attribute *attr, char *buf)
578 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
580 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
582 return a->show ? a->show(a, sbi, buf) : 0;
585 static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
586 const char *buf, size_t len)
588 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
590 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
592 return a->store ? a->store(a, sbi, buf, len) : 0;
595 static void f2fs_sb_release(struct kobject *kobj)
597 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
599 complete(&sbi->s_kobj_unregister);
603 * Note that there are three feature list entries:
604 * 1) /sys/fs/f2fs/features
605 * : shows runtime features supported by in-kernel f2fs along with Kconfig.
606 * - ref. F2FS_FEATURE_RO_ATTR()
608 * 2) /sys/fs/f2fs/$s_id/features <deprecated>
609 * : shows on-disk features enabled by mkfs.f2fs, used for old kernels. This
610 * won't add new feature anymore, and thus, users should check entries in 3)
611 * instead of this 2).
613 * 3) /sys/fs/f2fs/$s_id/feature_list
614 * : shows on-disk features enabled by mkfs.f2fs per instance, which follows
615 * sysfs entry rule where each entry should expose single value.
616 * This list covers old feature list provided by 2) and beyond. Therefore,
617 * please add new on-disk feature in this list only.
618 * - ref. F2FS_SB_FEATURE_RO_ATTR()
620 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
621 struct f2fs_sb_info *sbi, char *buf)
623 return sprintf(buf, "supported\n");
626 #define F2FS_FEATURE_RO_ATTR(_name) \
627 static struct f2fs_attr f2fs_attr_##_name = { \
628 .attr = {.name = __stringify(_name), .mode = 0444 }, \
629 .show = f2fs_feature_show, \
632 static ssize_t f2fs_sb_feature_show(struct f2fs_attr *a,
633 struct f2fs_sb_info *sbi, char *buf)
635 if (F2FS_HAS_FEATURE(sbi, a->id))
636 return sprintf(buf, "supported\n");
637 return sprintf(buf, "unsupported\n");
640 #define F2FS_SB_FEATURE_RO_ATTR(_name, _feat) \
641 static struct f2fs_attr f2fs_attr_sb_##_name = { \
642 .attr = {.name = __stringify(_name), .mode = 0444 }, \
643 .show = f2fs_sb_feature_show, \
644 .id = F2FS_FEATURE_##_feat, \
647 #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
648 static struct f2fs_attr f2fs_attr_##_name = { \
649 .attr = {.name = __stringify(_name), .mode = _mode }, \
652 .struct_type = _struct_type, \
656 #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
657 F2FS_ATTR_OFFSET(struct_type, name, 0644, \
658 f2fs_sbi_show, f2fs_sbi_store, \
659 offsetof(struct struct_name, elname))
661 #define F2FS_GENERAL_RO_ATTR(name) \
662 static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
664 #define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
665 static struct f2fs_attr f2fs_attr_##_name = { \
666 .attr = {.name = __stringify(_name), .mode = 0444 }, \
667 .show = f2fs_sbi_show, \
668 .struct_type = _struct_type, \
669 .offset = offsetof(struct _struct_name, _elname), \
672 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
674 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
675 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
676 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
677 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
678 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
679 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
680 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
681 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
682 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
683 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
684 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
685 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
686 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
687 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
688 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
689 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
690 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
691 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
692 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
693 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
694 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
695 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
696 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
697 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
698 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
699 interval_time[DISCARD_TIME]);
700 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
701 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
702 umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
703 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
704 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
705 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
706 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_io_bytes, max_io_bytes);
707 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
708 F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
709 #ifdef CONFIG_F2FS_FAULT_INJECTION
710 F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
711 F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
713 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
714 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
715 F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio);
716 F2FS_GENERAL_RO_ATTR(dirty_segments);
717 F2FS_GENERAL_RO_ATTR(free_segments);
718 F2FS_GENERAL_RO_ATTR(ovp_segments);
719 F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
720 F2FS_GENERAL_RO_ATTR(features);
721 F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
722 F2FS_GENERAL_RO_ATTR(unusable);
723 F2FS_GENERAL_RO_ATTR(encoding);
724 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
725 F2FS_GENERAL_RO_ATTR(main_blkaddr);
726 #ifdef CONFIG_F2FS_STAT_FS
727 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
728 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
729 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
730 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
731 F2FS_GENERAL_RO_ATTR(moved_blocks_background);
732 F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
733 F2FS_GENERAL_RO_ATTR(avg_vblocks);
736 #ifdef CONFIG_FS_ENCRYPTION
737 F2FS_FEATURE_RO_ATTR(encryption);
738 F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2);
739 #ifdef CONFIG_UNICODE
740 F2FS_FEATURE_RO_ATTR(encrypted_casefold);
742 #endif /* CONFIG_FS_ENCRYPTION */
743 #ifdef CONFIG_BLK_DEV_ZONED
744 F2FS_FEATURE_RO_ATTR(block_zoned);
746 F2FS_FEATURE_RO_ATTR(atomic_write);
747 F2FS_FEATURE_RO_ATTR(extra_attr);
748 F2FS_FEATURE_RO_ATTR(project_quota);
749 F2FS_FEATURE_RO_ATTR(inode_checksum);
750 F2FS_FEATURE_RO_ATTR(flexible_inline_xattr);
751 F2FS_FEATURE_RO_ATTR(quota_ino);
752 F2FS_FEATURE_RO_ATTR(inode_crtime);
753 F2FS_FEATURE_RO_ATTR(lost_found);
754 #ifdef CONFIG_FS_VERITY
755 F2FS_FEATURE_RO_ATTR(verity);
757 F2FS_FEATURE_RO_ATTR(sb_checksum);
758 #ifdef CONFIG_UNICODE
759 F2FS_FEATURE_RO_ATTR(casefold);
761 F2FS_FEATURE_RO_ATTR(readonly);
762 #ifdef CONFIG_F2FS_FS_COMPRESSION
763 F2FS_FEATURE_RO_ATTR(compression);
764 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block);
765 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_saved_block, compr_saved_block);
766 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_new_inode, compr_new_inode);
768 F2FS_FEATURE_RO_ATTR(pin_file);
771 F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_ratio, candidate_ratio);
772 F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_candidate_count, max_candidate_count);
773 F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_weight, age_weight);
774 F2FS_RW_ATTR(ATGC_INFO, atgc_management, atgc_age_threshold, age_threshold);
776 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, seq_file_ra_mul, seq_file_ra_mul);
777 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_segment_mode, gc_segment_mode);
778 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_reclaimed_segments, gc_reclaimed_segs);
780 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
781 static struct attribute *f2fs_attrs[] = {
782 ATTR_LIST(gc_urgent_sleep_time),
783 ATTR_LIST(gc_min_sleep_time),
784 ATTR_LIST(gc_max_sleep_time),
785 ATTR_LIST(gc_no_gc_sleep_time),
787 ATTR_LIST(gc_urgent),
788 ATTR_LIST(reclaim_segments),
789 ATTR_LIST(main_blkaddr),
790 ATTR_LIST(max_small_discards),
791 ATTR_LIST(discard_granularity),
792 ATTR_LIST(batched_trim_sections),
793 ATTR_LIST(ipu_policy),
794 ATTR_LIST(min_ipu_util),
795 ATTR_LIST(min_fsync_blocks),
796 ATTR_LIST(min_seq_blocks),
797 ATTR_LIST(min_hot_blocks),
798 ATTR_LIST(min_ssr_sections),
799 ATTR_LIST(max_victim_search),
800 ATTR_LIST(migration_granularity),
801 ATTR_LIST(dir_level),
802 ATTR_LIST(ram_thresh),
803 ATTR_LIST(ra_nid_pages),
804 ATTR_LIST(dirty_nats_ratio),
805 ATTR_LIST(cp_interval),
806 ATTR_LIST(idle_interval),
807 ATTR_LIST(discard_idle_interval),
808 ATTR_LIST(gc_idle_interval),
809 ATTR_LIST(umount_discard_timeout),
810 ATTR_LIST(iostat_enable),
811 ATTR_LIST(iostat_period_ms),
812 ATTR_LIST(readdir_ra),
813 ATTR_LIST(max_io_bytes),
814 ATTR_LIST(gc_pin_file_thresh),
815 ATTR_LIST(extension_list),
816 #ifdef CONFIG_F2FS_FAULT_INJECTION
817 ATTR_LIST(inject_rate),
818 ATTR_LIST(inject_type),
820 ATTR_LIST(data_io_flag),
821 ATTR_LIST(node_io_flag),
822 ATTR_LIST(ckpt_thread_ioprio),
823 ATTR_LIST(dirty_segments),
824 ATTR_LIST(free_segments),
825 ATTR_LIST(ovp_segments),
827 ATTR_LIST(lifetime_write_kbytes),
829 ATTR_LIST(reserved_blocks),
830 ATTR_LIST(current_reserved_blocks),
832 ATTR_LIST(mounted_time_sec),
833 #ifdef CONFIG_F2FS_STAT_FS
834 ATTR_LIST(cp_foreground_calls),
835 ATTR_LIST(cp_background_calls),
836 ATTR_LIST(gc_foreground_calls),
837 ATTR_LIST(gc_background_calls),
838 ATTR_LIST(moved_blocks_foreground),
839 ATTR_LIST(moved_blocks_background),
840 ATTR_LIST(avg_vblocks),
842 #ifdef CONFIG_F2FS_FS_COMPRESSION
843 ATTR_LIST(compr_written_block),
844 ATTR_LIST(compr_saved_block),
845 ATTR_LIST(compr_new_inode),
848 ATTR_LIST(atgc_candidate_ratio),
849 ATTR_LIST(atgc_candidate_count),
850 ATTR_LIST(atgc_age_weight),
851 ATTR_LIST(atgc_age_threshold),
852 ATTR_LIST(seq_file_ra_mul),
853 ATTR_LIST(gc_segment_mode),
854 ATTR_LIST(gc_reclaimed_segments),
857 ATTRIBUTE_GROUPS(f2fs);
859 static struct attribute *f2fs_feat_attrs[] = {
860 #ifdef CONFIG_FS_ENCRYPTION
861 ATTR_LIST(encryption),
862 ATTR_LIST(test_dummy_encryption_v2),
863 #ifdef CONFIG_UNICODE
864 ATTR_LIST(encrypted_casefold),
866 #endif /* CONFIG_FS_ENCRYPTION */
867 #ifdef CONFIG_BLK_DEV_ZONED
868 ATTR_LIST(block_zoned),
870 ATTR_LIST(atomic_write),
871 ATTR_LIST(extra_attr),
872 ATTR_LIST(project_quota),
873 ATTR_LIST(inode_checksum),
874 ATTR_LIST(flexible_inline_xattr),
875 ATTR_LIST(quota_ino),
876 ATTR_LIST(inode_crtime),
877 ATTR_LIST(lost_found),
878 #ifdef CONFIG_FS_VERITY
881 ATTR_LIST(sb_checksum),
882 #ifdef CONFIG_UNICODE
886 #ifdef CONFIG_F2FS_FS_COMPRESSION
887 ATTR_LIST(compression),
892 ATTRIBUTE_GROUPS(f2fs_feat);
894 F2FS_GENERAL_RO_ATTR(sb_status);
895 static struct attribute *f2fs_stat_attrs[] = {
896 ATTR_LIST(sb_status),
899 ATTRIBUTE_GROUPS(f2fs_stat);
901 F2FS_SB_FEATURE_RO_ATTR(encryption, ENCRYPT);
902 F2FS_SB_FEATURE_RO_ATTR(block_zoned, BLKZONED);
903 F2FS_SB_FEATURE_RO_ATTR(extra_attr, EXTRA_ATTR);
904 F2FS_SB_FEATURE_RO_ATTR(project_quota, PRJQUOTA);
905 F2FS_SB_FEATURE_RO_ATTR(inode_checksum, INODE_CHKSUM);
906 F2FS_SB_FEATURE_RO_ATTR(flexible_inline_xattr, FLEXIBLE_INLINE_XATTR);
907 F2FS_SB_FEATURE_RO_ATTR(quota_ino, QUOTA_INO);
908 F2FS_SB_FEATURE_RO_ATTR(inode_crtime, INODE_CRTIME);
909 F2FS_SB_FEATURE_RO_ATTR(lost_found, LOST_FOUND);
910 F2FS_SB_FEATURE_RO_ATTR(verity, VERITY);
911 F2FS_SB_FEATURE_RO_ATTR(sb_checksum, SB_CHKSUM);
912 F2FS_SB_FEATURE_RO_ATTR(casefold, CASEFOLD);
913 F2FS_SB_FEATURE_RO_ATTR(compression, COMPRESSION);
914 F2FS_SB_FEATURE_RO_ATTR(readonly, RO);
916 static struct attribute *f2fs_sb_feat_attrs[] = {
917 ATTR_LIST(sb_encryption),
918 ATTR_LIST(sb_block_zoned),
919 ATTR_LIST(sb_extra_attr),
920 ATTR_LIST(sb_project_quota),
921 ATTR_LIST(sb_inode_checksum),
922 ATTR_LIST(sb_flexible_inline_xattr),
923 ATTR_LIST(sb_quota_ino),
924 ATTR_LIST(sb_inode_crtime),
925 ATTR_LIST(sb_lost_found),
926 ATTR_LIST(sb_verity),
927 ATTR_LIST(sb_sb_checksum),
928 ATTR_LIST(sb_casefold),
929 ATTR_LIST(sb_compression),
930 ATTR_LIST(sb_readonly),
933 ATTRIBUTE_GROUPS(f2fs_sb_feat);
935 static const struct sysfs_ops f2fs_attr_ops = {
936 .show = f2fs_attr_show,
937 .store = f2fs_attr_store,
940 static struct kobj_type f2fs_sb_ktype = {
941 .default_groups = f2fs_groups,
942 .sysfs_ops = &f2fs_attr_ops,
943 .release = f2fs_sb_release,
946 static struct kobj_type f2fs_ktype = {
947 .sysfs_ops = &f2fs_attr_ops,
950 static struct kset f2fs_kset = {
951 .kobj = {.ktype = &f2fs_ktype},
954 static struct kobj_type f2fs_feat_ktype = {
955 .default_groups = f2fs_feat_groups,
956 .sysfs_ops = &f2fs_attr_ops,
959 static struct kobject f2fs_feat = {
963 static ssize_t f2fs_stat_attr_show(struct kobject *kobj,
964 struct attribute *attr, char *buf)
966 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
968 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
970 return a->show ? a->show(a, sbi, buf) : 0;
973 static ssize_t f2fs_stat_attr_store(struct kobject *kobj, struct attribute *attr,
974 const char *buf, size_t len)
976 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
978 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
980 return a->store ? a->store(a, sbi, buf, len) : 0;
983 static void f2fs_stat_kobj_release(struct kobject *kobj)
985 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
987 complete(&sbi->s_stat_kobj_unregister);
990 static const struct sysfs_ops f2fs_stat_attr_ops = {
991 .show = f2fs_stat_attr_show,
992 .store = f2fs_stat_attr_store,
995 static struct kobj_type f2fs_stat_ktype = {
996 .default_groups = f2fs_stat_groups,
997 .sysfs_ops = &f2fs_stat_attr_ops,
998 .release = f2fs_stat_kobj_release,
1001 static ssize_t f2fs_sb_feat_attr_show(struct kobject *kobj,
1002 struct attribute *attr, char *buf)
1004 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
1005 s_feature_list_kobj);
1006 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
1008 return a->show ? a->show(a, sbi, buf) : 0;
1011 static void f2fs_feature_list_kobj_release(struct kobject *kobj)
1013 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
1014 s_feature_list_kobj);
1015 complete(&sbi->s_feature_list_kobj_unregister);
1018 static const struct sysfs_ops f2fs_feature_list_attr_ops = {
1019 .show = f2fs_sb_feat_attr_show,
1022 static struct kobj_type f2fs_feature_list_ktype = {
1023 .default_groups = f2fs_sb_feat_groups,
1024 .sysfs_ops = &f2fs_feature_list_attr_ops,
1025 .release = f2fs_feature_list_kobj_release,
1028 static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
1031 struct super_block *sb = seq->private;
1032 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1033 unsigned int total_segs =
1034 le32_to_cpu(sbi->raw_super->segment_count_main);
1037 seq_puts(seq, "format: segment_type|valid_blocks\n"
1038 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
1040 for (i = 0; i < total_segs; i++) {
1041 struct seg_entry *se = get_seg_entry(sbi, i);
1044 seq_printf(seq, "%-10d", i);
1045 seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
1046 if ((i % 10) == 9 || i == (total_segs - 1))
1047 seq_putc(seq, '\n');
1055 static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
1058 struct super_block *sb = seq->private;
1059 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1060 unsigned int total_segs =
1061 le32_to_cpu(sbi->raw_super->segment_count_main);
1064 seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
1065 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
1067 for (i = 0; i < total_segs; i++) {
1068 struct seg_entry *se = get_seg_entry(sbi, i);
1070 seq_printf(seq, "%-10d", i);
1071 seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
1072 for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
1073 seq_printf(seq, " %.2x", se->cur_valid_map[j]);
1074 seq_putc(seq, '\n');
1079 void f2fs_record_iostat(struct f2fs_sb_info *sbi)
1081 unsigned long long iostat_diff[NR_IO_TYPE];
1084 if (time_is_after_jiffies(sbi->iostat_next_period))
1087 /* Need double check under the lock */
1088 spin_lock(&sbi->iostat_lock);
1089 if (time_is_after_jiffies(sbi->iostat_next_period)) {
1090 spin_unlock(&sbi->iostat_lock);
1093 sbi->iostat_next_period = jiffies +
1094 msecs_to_jiffies(sbi->iostat_period_ms);
1096 for (i = 0; i < NR_IO_TYPE; i++) {
1097 iostat_diff[i] = sbi->rw_iostat[i] -
1098 sbi->prev_rw_iostat[i];
1099 sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
1101 spin_unlock(&sbi->iostat_lock);
1103 trace_f2fs_iostat(sbi, iostat_diff);
1106 static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
1109 struct super_block *sb = seq->private;
1110 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1111 time64_t now = ktime_get_real_seconds();
1113 if (!sbi->iostat_enable)
1116 seq_printf(seq, "time: %-16llu\n", now);
1118 /* print app write IOs */
1119 seq_puts(seq, "[WRITE]\n");
1120 seq_printf(seq, "app buffered: %-16llu\n",
1121 sbi->rw_iostat[APP_BUFFERED_IO]);
1122 seq_printf(seq, "app direct: %-16llu\n",
1123 sbi->rw_iostat[APP_DIRECT_IO]);
1124 seq_printf(seq, "app mapped: %-16llu\n",
1125 sbi->rw_iostat[APP_MAPPED_IO]);
1127 /* print fs write IOs */
1128 seq_printf(seq, "fs data: %-16llu\n",
1129 sbi->rw_iostat[FS_DATA_IO]);
1130 seq_printf(seq, "fs node: %-16llu\n",
1131 sbi->rw_iostat[FS_NODE_IO]);
1132 seq_printf(seq, "fs meta: %-16llu\n",
1133 sbi->rw_iostat[FS_META_IO]);
1134 seq_printf(seq, "fs gc data: %-16llu\n",
1135 sbi->rw_iostat[FS_GC_DATA_IO]);
1136 seq_printf(seq, "fs gc node: %-16llu\n",
1137 sbi->rw_iostat[FS_GC_NODE_IO]);
1138 seq_printf(seq, "fs cp data: %-16llu\n",
1139 sbi->rw_iostat[FS_CP_DATA_IO]);
1140 seq_printf(seq, "fs cp node: %-16llu\n",
1141 sbi->rw_iostat[FS_CP_NODE_IO]);
1142 seq_printf(seq, "fs cp meta: %-16llu\n",
1143 sbi->rw_iostat[FS_CP_META_IO]);
1145 /* print app read IOs */
1146 seq_puts(seq, "[READ]\n");
1147 seq_printf(seq, "app buffered: %-16llu\n",
1148 sbi->rw_iostat[APP_BUFFERED_READ_IO]);
1149 seq_printf(seq, "app direct: %-16llu\n",
1150 sbi->rw_iostat[APP_DIRECT_READ_IO]);
1151 seq_printf(seq, "app mapped: %-16llu\n",
1152 sbi->rw_iostat[APP_MAPPED_READ_IO]);
1154 /* print fs read IOs */
1155 seq_printf(seq, "fs data: %-16llu\n",
1156 sbi->rw_iostat[FS_DATA_READ_IO]);
1157 seq_printf(seq, "fs gc data: %-16llu\n",
1158 sbi->rw_iostat[FS_GDATA_READ_IO]);
1159 seq_printf(seq, "fs compr_data: %-16llu\n",
1160 sbi->rw_iostat[FS_CDATA_READ_IO]);
1161 seq_printf(seq, "fs node: %-16llu\n",
1162 sbi->rw_iostat[FS_NODE_READ_IO]);
1163 seq_printf(seq, "fs meta: %-16llu\n",
1164 sbi->rw_iostat[FS_META_READ_IO]);
1166 /* print other IOs */
1167 seq_puts(seq, "[OTHER]\n");
1168 seq_printf(seq, "fs discard: %-16llu\n",
1169 sbi->rw_iostat[FS_DISCARD]);
1174 static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
1177 struct super_block *sb = seq->private;
1178 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1179 struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
1182 seq_puts(seq, "format: victim_secmap bitmaps\n");
1184 for (i = 0; i < MAIN_SECS(sbi); i++) {
1186 seq_printf(seq, "%-10d", i);
1187 seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
1188 if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
1189 seq_putc(seq, '\n');
1196 int __init f2fs_init_sysfs(void)
1200 kobject_set_name(&f2fs_kset.kobj, "f2fs");
1201 f2fs_kset.kobj.parent = fs_kobj;
1202 ret = kset_register(&f2fs_kset);
1206 ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
1209 kobject_put(&f2fs_feat);
1210 kset_unregister(&f2fs_kset);
1212 f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
1217 void f2fs_exit_sysfs(void)
1219 kobject_put(&f2fs_feat);
1220 kset_unregister(&f2fs_kset);
1221 remove_proc_entry("fs/f2fs", NULL);
1222 f2fs_proc_root = NULL;
1225 int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
1227 struct super_block *sb = sbi->sb;
1230 sbi->s_kobj.kset = &f2fs_kset;
1231 init_completion(&sbi->s_kobj_unregister);
1232 err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
1237 sbi->s_stat_kobj.kset = &f2fs_kset;
1238 init_completion(&sbi->s_stat_kobj_unregister);
1239 err = kobject_init_and_add(&sbi->s_stat_kobj, &f2fs_stat_ktype,
1240 &sbi->s_kobj, "stat");
1244 sbi->s_feature_list_kobj.kset = &f2fs_kset;
1245 init_completion(&sbi->s_feature_list_kobj_unregister);
1246 err = kobject_init_and_add(&sbi->s_feature_list_kobj,
1247 &f2fs_feature_list_ktype,
1248 &sbi->s_kobj, "feature_list");
1250 goto put_feature_list_kobj;
1253 sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
1256 proc_create_single_data("segment_info", 0444, sbi->s_proc,
1257 segment_info_seq_show, sb);
1258 proc_create_single_data("segment_bits", 0444, sbi->s_proc,
1259 segment_bits_seq_show, sb);
1260 proc_create_single_data("iostat_info", 0444, sbi->s_proc,
1261 iostat_info_seq_show, sb);
1262 proc_create_single_data("victim_bits", 0444, sbi->s_proc,
1263 victim_bits_seq_show, sb);
1266 put_feature_list_kobj:
1267 kobject_put(&sbi->s_feature_list_kobj);
1268 wait_for_completion(&sbi->s_feature_list_kobj_unregister);
1270 kobject_put(&sbi->s_stat_kobj);
1271 wait_for_completion(&sbi->s_stat_kobj_unregister);
1273 kobject_put(&sbi->s_kobj);
1274 wait_for_completion(&sbi->s_kobj_unregister);
1278 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
1281 remove_proc_entry("iostat_info", sbi->s_proc);
1282 remove_proc_entry("segment_info", sbi->s_proc);
1283 remove_proc_entry("segment_bits", sbi->s_proc);
1284 remove_proc_entry("victim_bits", sbi->s_proc);
1285 remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
1288 kobject_del(&sbi->s_stat_kobj);
1289 kobject_put(&sbi->s_stat_kobj);
1290 wait_for_completion(&sbi->s_stat_kobj_unregister);
1291 kobject_del(&sbi->s_feature_list_kobj);
1292 kobject_put(&sbi->s_feature_list_kobj);
1293 wait_for_completion(&sbi->s_feature_list_kobj_unregister);
1295 kobject_del(&sbi->s_kobj);
1296 kobject_put(&sbi->s_kobj);
1297 wait_for_completion(&sbi->s_kobj_unregister);