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 */
43 struct attribute attr;
44 ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
45 ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
46 const char *, size_t);
52 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
53 struct f2fs_sb_info *sbi, char *buf);
55 static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
57 if (struct_type == GC_THREAD)
58 return (unsigned char *)sbi->gc_thread;
59 else if (struct_type == SM_INFO)
60 return (unsigned char *)SM_I(sbi);
61 else if (struct_type == DCC_INFO)
62 return (unsigned char *)SM_I(sbi)->dcc_info;
63 else if (struct_type == NM_INFO)
64 return (unsigned char *)NM_I(sbi);
65 else if (struct_type == F2FS_SBI || struct_type == RESERVED_BLOCKS)
66 return (unsigned char *)sbi;
67 #ifdef CONFIG_F2FS_FAULT_INJECTION
68 else if (struct_type == FAULT_INFO_RATE ||
69 struct_type == FAULT_INFO_TYPE)
70 return (unsigned char *)&F2FS_OPTION(sbi).fault_info;
72 #ifdef CONFIG_F2FS_STAT_FS
73 else if (struct_type == STAT_INFO)
74 return (unsigned char *)F2FS_STAT(sbi);
76 else if (struct_type == CPRC_INFO)
77 return (unsigned char *)&sbi->cprc_info;
81 static ssize_t dirty_segments_show(struct f2fs_attr *a,
82 struct f2fs_sb_info *sbi, char *buf)
84 return sprintf(buf, "%llu\n",
85 (unsigned long long)(dirty_segments(sbi)));
88 static ssize_t free_segments_show(struct f2fs_attr *a,
89 struct f2fs_sb_info *sbi, char *buf)
91 return sprintf(buf, "%llu\n",
92 (unsigned long long)(free_segments(sbi)));
95 static ssize_t ovp_segments_show(struct f2fs_attr *a,
96 struct f2fs_sb_info *sbi, char *buf)
98 return sprintf(buf, "%llu\n",
99 (unsigned long long)(overprovision_segments(sbi)));
102 static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
103 struct f2fs_sb_info *sbi, char *buf)
105 return sprintf(buf, "%llu\n",
106 (unsigned long long)(sbi->kbytes_written +
107 ((f2fs_get_sectors_written(sbi) -
108 sbi->sectors_written_start) >> 1)));
111 static ssize_t sb_status_show(struct f2fs_attr *a,
112 struct f2fs_sb_info *sbi, char *buf)
114 return sprintf(buf, "%lx\n", sbi->s_flag);
117 static ssize_t features_show(struct f2fs_attr *a,
118 struct f2fs_sb_info *sbi, char *buf)
122 if (f2fs_sb_has_encrypt(sbi))
123 len += scnprintf(buf, PAGE_SIZE - len, "%s",
125 if (f2fs_sb_has_blkzoned(sbi))
126 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
127 len ? ", " : "", "blkzoned");
128 if (f2fs_sb_has_extra_attr(sbi))
129 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
130 len ? ", " : "", "extra_attr");
131 if (f2fs_sb_has_project_quota(sbi))
132 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
133 len ? ", " : "", "projquota");
134 if (f2fs_sb_has_inode_chksum(sbi))
135 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
136 len ? ", " : "", "inode_checksum");
137 if (f2fs_sb_has_flexible_inline_xattr(sbi))
138 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
139 len ? ", " : "", "flexible_inline_xattr");
140 if (f2fs_sb_has_quota_ino(sbi))
141 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
142 len ? ", " : "", "quota_ino");
143 if (f2fs_sb_has_inode_crtime(sbi))
144 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
145 len ? ", " : "", "inode_crtime");
146 if (f2fs_sb_has_lost_found(sbi))
147 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
148 len ? ", " : "", "lost_found");
149 if (f2fs_sb_has_verity(sbi))
150 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
151 len ? ", " : "", "verity");
152 if (f2fs_sb_has_sb_chksum(sbi))
153 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
154 len ? ", " : "", "sb_checksum");
155 if (f2fs_sb_has_casefold(sbi))
156 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
157 len ? ", " : "", "casefold");
158 if (f2fs_sb_has_compression(sbi))
159 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
160 len ? ", " : "", "compression");
161 len += scnprintf(buf + len, PAGE_SIZE - len, "%s%s",
162 len ? ", " : "", "pin_file");
163 len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
167 static ssize_t current_reserved_blocks_show(struct f2fs_attr *a,
168 struct f2fs_sb_info *sbi, char *buf)
170 return sprintf(buf, "%u\n", sbi->current_reserved_blocks);
173 static ssize_t unusable_show(struct f2fs_attr *a,
174 struct f2fs_sb_info *sbi, char *buf)
178 if (test_opt(sbi, DISABLE_CHECKPOINT))
179 unusable = sbi->unusable_block_count;
181 unusable = f2fs_get_unusable_blocks(sbi);
182 return sprintf(buf, "%llu\n", (unsigned long long)unusable);
185 static ssize_t encoding_show(struct f2fs_attr *a,
186 struct f2fs_sb_info *sbi, char *buf)
188 #ifdef CONFIG_UNICODE
189 struct super_block *sb = sbi->sb;
191 if (f2fs_sb_has_casefold(sbi))
192 return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n",
193 sb->s_encoding->charset,
194 (sb->s_encoding->version >> 16) & 0xff,
195 (sb->s_encoding->version >> 8) & 0xff,
196 sb->s_encoding->version & 0xff);
198 return sprintf(buf, "(none)");
201 static ssize_t mounted_time_sec_show(struct f2fs_attr *a,
202 struct f2fs_sb_info *sbi, char *buf)
204 return sprintf(buf, "%llu", SIT_I(sbi)->mounted_time);
207 #ifdef CONFIG_F2FS_STAT_FS
208 static ssize_t moved_blocks_foreground_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->tot_blks -
215 (si->bg_data_blks + si->bg_node_blks)));
218 static ssize_t moved_blocks_background_show(struct f2fs_attr *a,
219 struct f2fs_sb_info *sbi, char *buf)
221 struct f2fs_stat_info *si = F2FS_STAT(sbi);
223 return sprintf(buf, "%llu\n",
224 (unsigned long long)(si->bg_data_blks + si->bg_node_blks));
227 static ssize_t avg_vblocks_show(struct f2fs_attr *a,
228 struct f2fs_sb_info *sbi, char *buf)
230 struct f2fs_stat_info *si = F2FS_STAT(sbi);
232 si->dirty_count = dirty_segments(sbi);
233 f2fs_update_sit_info(sbi);
234 return sprintf(buf, "%llu\n", (unsigned long long)(si->avg_vblocks));
238 static ssize_t main_blkaddr_show(struct f2fs_attr *a,
239 struct f2fs_sb_info *sbi, char *buf)
241 return snprintf(buf, PAGE_SIZE, "%llu\n",
242 (unsigned long long)MAIN_BLKADDR(sbi));
245 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
246 struct f2fs_sb_info *sbi, char *buf)
248 unsigned char *ptr = NULL;
251 ptr = __struct_ptr(sbi, a->struct_type);
255 if (!strcmp(a->attr.name, "extension_list")) {
256 __u8 (*extlist)[F2FS_EXTENSION_LEN] =
257 sbi->raw_super->extension_list;
258 int cold_count = le32_to_cpu(sbi->raw_super->extension_count);
259 int hot_count = sbi->raw_super->hot_ext_count;
262 len += scnprintf(buf + len, PAGE_SIZE - len,
263 "cold file extension:\n");
264 for (i = 0; i < cold_count; i++)
265 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
268 len += scnprintf(buf + len, PAGE_SIZE - len,
269 "hot file extension:\n");
270 for (i = cold_count; i < cold_count + hot_count; i++)
271 len += scnprintf(buf + len, PAGE_SIZE - len, "%s\n",
276 if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
277 struct ckpt_req_control *cprc = &sbi->cprc_info;
279 int class = IOPRIO_PRIO_CLASS(cprc->ckpt_thread_ioprio);
280 int data = IOPRIO_PRIO_DATA(cprc->ckpt_thread_ioprio);
282 if (class == IOPRIO_CLASS_RT)
283 len += scnprintf(buf + len, PAGE_SIZE - len, "rt,");
284 else if (class == IOPRIO_CLASS_BE)
285 len += scnprintf(buf + len, PAGE_SIZE - len, "be,");
289 len += scnprintf(buf + len, PAGE_SIZE - len, "%d\n", data);
293 #ifdef CONFIG_F2FS_FS_COMPRESSION
294 if (!strcmp(a->attr.name, "compr_written_block"))
295 return sysfs_emit(buf, "%llu\n", sbi->compr_written_block);
297 if (!strcmp(a->attr.name, "compr_saved_block"))
298 return sysfs_emit(buf, "%llu\n", sbi->compr_saved_block);
300 if (!strcmp(a->attr.name, "compr_new_inode"))
301 return sysfs_emit(buf, "%u\n", sbi->compr_new_inode);
304 ui = (unsigned int *)(ptr + a->offset);
306 return sprintf(buf, "%u\n", *ui);
309 static ssize_t __sbi_store(struct f2fs_attr *a,
310 struct f2fs_sb_info *sbi,
311 const char *buf, size_t count)
318 ptr = __struct_ptr(sbi, a->struct_type);
322 if (!strcmp(a->attr.name, "extension_list")) {
323 const char *name = strim((char *)buf);
324 bool set = true, hot;
326 if (!strncmp(name, "[h]", 3))
328 else if (!strncmp(name, "[c]", 3))
340 if (strlen(name) >= F2FS_EXTENSION_LEN)
343 down_write(&sbi->sb_lock);
345 ret = f2fs_update_extension_list(sbi, name, hot, set);
349 ret = f2fs_commit_super(sbi, false);
351 f2fs_update_extension_list(sbi, name, hot, !set);
353 up_write(&sbi->sb_lock);
354 return ret ? ret : count;
357 if (!strcmp(a->attr.name, "ckpt_thread_ioprio")) {
358 const char *name = strim((char *)buf);
359 struct ckpt_req_control *cprc = &sbi->cprc_info;
364 if (!strncmp(name, "rt,", 3))
365 class = IOPRIO_CLASS_RT;
366 else if (!strncmp(name, "be,", 3))
367 class = IOPRIO_CLASS_BE;
372 ret = kstrtol(name, 10, &data);
375 if (data >= IOPRIO_BE_NR || data < 0)
378 cprc->ckpt_thread_ioprio = IOPRIO_PRIO_VALUE(class, data);
379 if (test_opt(sbi, MERGE_CHECKPOINT)) {
380 ret = set_task_ioprio(cprc->f2fs_issue_ckpt,
381 cprc->ckpt_thread_ioprio);
389 ui = (unsigned int *)(ptr + a->offset);
391 ret = kstrtoul(skip_spaces(buf), 0, &t);
394 #ifdef CONFIG_F2FS_FAULT_INJECTION
395 if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
397 if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
400 if (a->struct_type == RESERVED_BLOCKS) {
401 spin_lock(&sbi->stat_lock);
402 if (t > (unsigned long)(sbi->user_block_count -
403 F2FS_OPTION(sbi).root_reserved_blocks)) {
404 spin_unlock(&sbi->stat_lock);
408 sbi->current_reserved_blocks = min(sbi->reserved_blocks,
409 sbi->user_block_count - valid_user_blocks(sbi));
410 spin_unlock(&sbi->stat_lock);
414 if (!strcmp(a->attr.name, "discard_granularity")) {
415 if (t == 0 || t > MAX_PLIST_NUM)
423 if (!strcmp(a->attr.name, "migration_granularity")) {
424 if (t == 0 || t > sbi->segs_per_sec)
428 if (!strcmp(a->attr.name, "trim_sections"))
431 if (!strcmp(a->attr.name, "gc_urgent")) {
433 sbi->gc_mode = GC_NORMAL;
435 sbi->gc_mode = GC_URGENT_HIGH;
436 if (sbi->gc_thread) {
437 sbi->gc_thread->gc_wake = 1;
438 wake_up_interruptible_all(
439 &sbi->gc_thread->gc_wait_queue_head);
440 wake_up_discard_thread(sbi, true);
443 sbi->gc_mode = GC_URGENT_LOW;
449 if (!strcmp(a->attr.name, "gc_idle")) {
450 if (t == GC_IDLE_CB) {
451 sbi->gc_mode = GC_IDLE_CB;
452 } else if (t == GC_IDLE_GREEDY) {
453 sbi->gc_mode = GC_IDLE_GREEDY;
454 } else if (t == GC_IDLE_AT) {
455 if (!sbi->am.atgc_enabled)
457 sbi->gc_mode = GC_AT;
459 sbi->gc_mode = GC_NORMAL;
464 if (!strcmp(a->attr.name, "iostat_enable")) {
465 sbi->iostat_enable = !!t;
466 if (!sbi->iostat_enable)
467 f2fs_reset_iostat(sbi);
471 if (!strcmp(a->attr.name, "iostat_period_ms")) {
472 if (t < MIN_IOSTAT_PERIOD_MS || t > MAX_IOSTAT_PERIOD_MS)
474 spin_lock(&sbi->iostat_lock);
475 sbi->iostat_period_ms = (unsigned int)t;
476 spin_unlock(&sbi->iostat_lock);
480 #ifdef CONFIG_F2FS_FS_COMPRESSION
481 if (!strcmp(a->attr.name, "compr_written_block") ||
482 !strcmp(a->attr.name, "compr_saved_block")) {
485 sbi->compr_written_block = 0;
486 sbi->compr_saved_block = 0;
490 if (!strcmp(a->attr.name, "compr_new_inode")) {
493 sbi->compr_new_inode = 0;
498 *ui = (unsigned int)t;
503 static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
504 struct f2fs_sb_info *sbi,
505 const char *buf, size_t count)
508 bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
509 a->struct_type == GC_THREAD);
512 if (!down_read_trylock(&sbi->sb->s_umount))
515 ret = __sbi_store(a, sbi, buf, count);
517 up_read(&sbi->sb->s_umount);
522 static ssize_t f2fs_attr_show(struct kobject *kobj,
523 struct attribute *attr, char *buf)
525 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
527 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
529 return a->show ? a->show(a, sbi, buf) : 0;
532 static ssize_t f2fs_attr_store(struct kobject *kobj, struct attribute *attr,
533 const char *buf, size_t len)
535 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
537 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
539 return a->store ? a->store(a, sbi, buf, len) : 0;
542 static void f2fs_sb_release(struct kobject *kobj)
544 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
546 complete(&sbi->s_kobj_unregister);
556 FEAT_FLEXIBLE_INLINE_XATTR,
564 FEAT_TEST_DUMMY_ENCRYPTION_V2,
565 FEAT_ENCRYPTED_CASEFOLD,
568 static ssize_t f2fs_feature_show(struct f2fs_attr *a,
569 struct f2fs_sb_info *sbi, char *buf)
574 case FEAT_ATOMIC_WRITE:
575 case FEAT_EXTRA_ATTR:
576 case FEAT_PROJECT_QUOTA:
577 case FEAT_INODE_CHECKSUM:
578 case FEAT_FLEXIBLE_INLINE_XATTR:
580 case FEAT_INODE_CRTIME:
581 case FEAT_LOST_FOUND:
583 case FEAT_SB_CHECKSUM:
585 case FEAT_COMPRESSION:
586 case FEAT_TEST_DUMMY_ENCRYPTION_V2:
587 case FEAT_ENCRYPTED_CASEFOLD:
588 return sprintf(buf, "supported\n");
593 #define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
594 static struct f2fs_attr f2fs_attr_##_name = { \
595 .attr = {.name = __stringify(_name), .mode = _mode }, \
598 .struct_type = _struct_type, \
602 #define F2FS_RW_ATTR(struct_type, struct_name, name, elname) \
603 F2FS_ATTR_OFFSET(struct_type, name, 0644, \
604 f2fs_sbi_show, f2fs_sbi_store, \
605 offsetof(struct struct_name, elname))
607 #define F2FS_GENERAL_RO_ATTR(name) \
608 static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
610 #define F2FS_FEATURE_RO_ATTR(_name, _id) \
611 static struct f2fs_attr f2fs_attr_##_name = { \
612 .attr = {.name = __stringify(_name), .mode = 0444 }, \
613 .show = f2fs_feature_show, \
617 #define F2FS_STAT_ATTR(_struct_type, _struct_name, _name, _elname) \
618 static struct f2fs_attr f2fs_attr_##_name = { \
619 .attr = {.name = __stringify(_name), .mode = 0444 }, \
620 .show = f2fs_sbi_show, \
621 .struct_type = _struct_type, \
622 .offset = offsetof(struct _struct_name, _elname), \
625 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
627 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
628 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
629 F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
630 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
631 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
632 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
633 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
634 F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
635 F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
636 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
637 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
638 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
639 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
640 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
641 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
642 F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
643 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
644 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
645 F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
646 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
647 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
648 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
649 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
650 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
651 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
652 interval_time[DISCARD_TIME]);
653 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
654 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
655 umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
656 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
657 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_period_ms, iostat_period_ms);
658 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
659 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_io_bytes, max_io_bytes);
660 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
661 F2FS_RW_ATTR(F2FS_SBI, f2fs_super_block, extension_list, extension_list);
662 #ifdef CONFIG_F2FS_FAULT_INJECTION
663 F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
664 F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
666 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
667 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
668 F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio);
669 F2FS_GENERAL_RO_ATTR(dirty_segments);
670 F2FS_GENERAL_RO_ATTR(free_segments);
671 F2FS_GENERAL_RO_ATTR(ovp_segments);
672 F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
673 F2FS_GENERAL_RO_ATTR(features);
674 F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
675 F2FS_GENERAL_RO_ATTR(unusable);
676 F2FS_GENERAL_RO_ATTR(encoding);
677 F2FS_GENERAL_RO_ATTR(mounted_time_sec);
678 F2FS_GENERAL_RO_ATTR(main_blkaddr);
679 #ifdef CONFIG_F2FS_STAT_FS
680 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_foreground_calls, cp_count);
681 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, cp_background_calls, bg_cp_count);
682 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_foreground_calls, call_count);
683 F2FS_STAT_ATTR(STAT_INFO, f2fs_stat_info, gc_background_calls, bg_gc);
684 F2FS_GENERAL_RO_ATTR(moved_blocks_background);
685 F2FS_GENERAL_RO_ATTR(moved_blocks_foreground);
686 F2FS_GENERAL_RO_ATTR(avg_vblocks);
689 #ifdef CONFIG_FS_ENCRYPTION
690 F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
691 F2FS_FEATURE_RO_ATTR(test_dummy_encryption_v2, FEAT_TEST_DUMMY_ENCRYPTION_V2);
692 #ifdef CONFIG_UNICODE
693 F2FS_FEATURE_RO_ATTR(encrypted_casefold, FEAT_ENCRYPTED_CASEFOLD);
695 #endif /* CONFIG_FS_ENCRYPTION */
696 #ifdef CONFIG_BLK_DEV_ZONED
697 F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
699 F2FS_FEATURE_RO_ATTR(atomic_write, FEAT_ATOMIC_WRITE);
700 F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
701 F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
702 F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
703 F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
704 F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
705 F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
706 F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
707 #ifdef CONFIG_FS_VERITY
708 F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY);
710 F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
711 #ifdef CONFIG_UNICODE
712 F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD);
714 #ifdef CONFIG_F2FS_FS_COMPRESSION
715 F2FS_FEATURE_RO_ATTR(compression, FEAT_COMPRESSION);
716 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_written_block, compr_written_block);
717 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_saved_block, compr_saved_block);
718 F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, compr_new_inode, compr_new_inode);
721 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
722 static struct attribute *f2fs_attrs[] = {
723 ATTR_LIST(gc_urgent_sleep_time),
724 ATTR_LIST(gc_min_sleep_time),
725 ATTR_LIST(gc_max_sleep_time),
726 ATTR_LIST(gc_no_gc_sleep_time),
728 ATTR_LIST(gc_urgent),
729 ATTR_LIST(reclaim_segments),
730 ATTR_LIST(main_blkaddr),
731 ATTR_LIST(max_small_discards),
732 ATTR_LIST(discard_granularity),
733 ATTR_LIST(batched_trim_sections),
734 ATTR_LIST(ipu_policy),
735 ATTR_LIST(min_ipu_util),
736 ATTR_LIST(min_fsync_blocks),
737 ATTR_LIST(min_seq_blocks),
738 ATTR_LIST(min_hot_blocks),
739 ATTR_LIST(min_ssr_sections),
740 ATTR_LIST(max_victim_search),
741 ATTR_LIST(migration_granularity),
742 ATTR_LIST(dir_level),
743 ATTR_LIST(ram_thresh),
744 ATTR_LIST(ra_nid_pages),
745 ATTR_LIST(dirty_nats_ratio),
746 ATTR_LIST(cp_interval),
747 ATTR_LIST(idle_interval),
748 ATTR_LIST(discard_idle_interval),
749 ATTR_LIST(gc_idle_interval),
750 ATTR_LIST(umount_discard_timeout),
751 ATTR_LIST(iostat_enable),
752 ATTR_LIST(iostat_period_ms),
753 ATTR_LIST(readdir_ra),
754 ATTR_LIST(max_io_bytes),
755 ATTR_LIST(gc_pin_file_thresh),
756 ATTR_LIST(extension_list),
757 #ifdef CONFIG_F2FS_FAULT_INJECTION
758 ATTR_LIST(inject_rate),
759 ATTR_LIST(inject_type),
761 ATTR_LIST(data_io_flag),
762 ATTR_LIST(node_io_flag),
763 ATTR_LIST(ckpt_thread_ioprio),
764 ATTR_LIST(dirty_segments),
765 ATTR_LIST(free_segments),
766 ATTR_LIST(ovp_segments),
768 ATTR_LIST(lifetime_write_kbytes),
770 ATTR_LIST(reserved_blocks),
771 ATTR_LIST(current_reserved_blocks),
773 ATTR_LIST(mounted_time_sec),
774 #ifdef CONFIG_F2FS_STAT_FS
775 ATTR_LIST(cp_foreground_calls),
776 ATTR_LIST(cp_background_calls),
777 ATTR_LIST(gc_foreground_calls),
778 ATTR_LIST(gc_background_calls),
779 ATTR_LIST(moved_blocks_foreground),
780 ATTR_LIST(moved_blocks_background),
781 ATTR_LIST(avg_vblocks),
783 #ifdef CONFIG_F2FS_FS_COMPRESSION
784 ATTR_LIST(compr_written_block),
785 ATTR_LIST(compr_saved_block),
786 ATTR_LIST(compr_new_inode),
790 ATTRIBUTE_GROUPS(f2fs);
792 static struct attribute *f2fs_feat_attrs[] = {
793 #ifdef CONFIG_FS_ENCRYPTION
794 ATTR_LIST(encryption),
795 ATTR_LIST(test_dummy_encryption_v2),
796 #ifdef CONFIG_UNICODE
797 ATTR_LIST(encrypted_casefold),
799 #endif /* CONFIG_FS_ENCRYPTION */
800 #ifdef CONFIG_BLK_DEV_ZONED
801 ATTR_LIST(block_zoned),
803 ATTR_LIST(atomic_write),
804 ATTR_LIST(extra_attr),
805 ATTR_LIST(project_quota),
806 ATTR_LIST(inode_checksum),
807 ATTR_LIST(flexible_inline_xattr),
808 ATTR_LIST(quota_ino),
809 ATTR_LIST(inode_crtime),
810 ATTR_LIST(lost_found),
811 #ifdef CONFIG_FS_VERITY
814 ATTR_LIST(sb_checksum),
815 #ifdef CONFIG_UNICODE
818 #ifdef CONFIG_F2FS_FS_COMPRESSION
819 ATTR_LIST(compression),
823 ATTRIBUTE_GROUPS(f2fs_feat);
825 F2FS_GENERAL_RO_ATTR(sb_status);
826 static struct attribute *f2fs_stat_attrs[] = {
827 ATTR_LIST(sb_status),
830 ATTRIBUTE_GROUPS(f2fs_stat);
832 static const struct sysfs_ops f2fs_attr_ops = {
833 .show = f2fs_attr_show,
834 .store = f2fs_attr_store,
837 static struct kobj_type f2fs_sb_ktype = {
838 .default_groups = f2fs_groups,
839 .sysfs_ops = &f2fs_attr_ops,
840 .release = f2fs_sb_release,
843 static struct kobj_type f2fs_ktype = {
844 .sysfs_ops = &f2fs_attr_ops,
847 static struct kset f2fs_kset = {
848 .kobj = {.ktype = &f2fs_ktype},
851 static struct kobj_type f2fs_feat_ktype = {
852 .default_groups = f2fs_feat_groups,
853 .sysfs_ops = &f2fs_attr_ops,
856 static struct kobject f2fs_feat = {
860 static ssize_t f2fs_stat_attr_show(struct kobject *kobj,
861 struct attribute *attr, char *buf)
863 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
865 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
867 return a->show ? a->show(a, sbi, buf) : 0;
870 static ssize_t f2fs_stat_attr_store(struct kobject *kobj, struct attribute *attr,
871 const char *buf, size_t len)
873 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
875 struct f2fs_attr *a = container_of(attr, struct f2fs_attr, attr);
877 return a->store ? a->store(a, sbi, buf, len) : 0;
880 static void f2fs_stat_kobj_release(struct kobject *kobj)
882 struct f2fs_sb_info *sbi = container_of(kobj, struct f2fs_sb_info,
884 complete(&sbi->s_stat_kobj_unregister);
887 static const struct sysfs_ops f2fs_stat_attr_ops = {
888 .show = f2fs_stat_attr_show,
889 .store = f2fs_stat_attr_store,
892 static struct kobj_type f2fs_stat_ktype = {
893 .default_groups = f2fs_stat_groups,
894 .sysfs_ops = &f2fs_stat_attr_ops,
895 .release = f2fs_stat_kobj_release,
898 static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
901 struct super_block *sb = seq->private;
902 struct f2fs_sb_info *sbi = F2FS_SB(sb);
903 unsigned int total_segs =
904 le32_to_cpu(sbi->raw_super->segment_count_main);
907 seq_puts(seq, "format: segment_type|valid_blocks\n"
908 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
910 for (i = 0; i < total_segs; i++) {
911 struct seg_entry *se = get_seg_entry(sbi, i);
914 seq_printf(seq, "%-10d", i);
915 seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
916 if ((i % 10) == 9 || i == (total_segs - 1))
925 static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
928 struct super_block *sb = seq->private;
929 struct f2fs_sb_info *sbi = F2FS_SB(sb);
930 unsigned int total_segs =
931 le32_to_cpu(sbi->raw_super->segment_count_main);
934 seq_puts(seq, "format: segment_type|valid_blocks|bitmaps\n"
935 "segment_type(0:HD, 1:WD, 2:CD, 3:HN, 4:WN, 5:CN)\n");
937 for (i = 0; i < total_segs; i++) {
938 struct seg_entry *se = get_seg_entry(sbi, i);
940 seq_printf(seq, "%-10d", i);
941 seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
942 for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
943 seq_printf(seq, " %.2x", se->cur_valid_map[j]);
949 void f2fs_record_iostat(struct f2fs_sb_info *sbi)
951 unsigned long long iostat_diff[NR_IO_TYPE];
954 if (time_is_after_jiffies(sbi->iostat_next_period))
957 /* Need double check under the lock */
958 spin_lock(&sbi->iostat_lock);
959 if (time_is_after_jiffies(sbi->iostat_next_period)) {
960 spin_unlock(&sbi->iostat_lock);
963 sbi->iostat_next_period = jiffies +
964 msecs_to_jiffies(sbi->iostat_period_ms);
966 for (i = 0; i < NR_IO_TYPE; i++) {
967 iostat_diff[i] = sbi->rw_iostat[i] -
968 sbi->prev_rw_iostat[i];
969 sbi->prev_rw_iostat[i] = sbi->rw_iostat[i];
971 spin_unlock(&sbi->iostat_lock);
973 trace_f2fs_iostat(sbi, iostat_diff);
976 static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
979 struct super_block *sb = seq->private;
980 struct f2fs_sb_info *sbi = F2FS_SB(sb);
981 time64_t now = ktime_get_real_seconds();
983 if (!sbi->iostat_enable)
986 seq_printf(seq, "time: %-16llu\n", now);
988 /* print app write IOs */
989 seq_puts(seq, "[WRITE]\n");
990 seq_printf(seq, "app buffered: %-16llu\n",
991 sbi->rw_iostat[APP_BUFFERED_IO]);
992 seq_printf(seq, "app direct: %-16llu\n",
993 sbi->rw_iostat[APP_DIRECT_IO]);
994 seq_printf(seq, "app mapped: %-16llu\n",
995 sbi->rw_iostat[APP_MAPPED_IO]);
997 /* print fs write IOs */
998 seq_printf(seq, "fs data: %-16llu\n",
999 sbi->rw_iostat[FS_DATA_IO]);
1000 seq_printf(seq, "fs node: %-16llu\n",
1001 sbi->rw_iostat[FS_NODE_IO]);
1002 seq_printf(seq, "fs meta: %-16llu\n",
1003 sbi->rw_iostat[FS_META_IO]);
1004 seq_printf(seq, "fs gc data: %-16llu\n",
1005 sbi->rw_iostat[FS_GC_DATA_IO]);
1006 seq_printf(seq, "fs gc node: %-16llu\n",
1007 sbi->rw_iostat[FS_GC_NODE_IO]);
1008 seq_printf(seq, "fs cp data: %-16llu\n",
1009 sbi->rw_iostat[FS_CP_DATA_IO]);
1010 seq_printf(seq, "fs cp node: %-16llu\n",
1011 sbi->rw_iostat[FS_CP_NODE_IO]);
1012 seq_printf(seq, "fs cp meta: %-16llu\n",
1013 sbi->rw_iostat[FS_CP_META_IO]);
1015 /* print app read IOs */
1016 seq_puts(seq, "[READ]\n");
1017 seq_printf(seq, "app buffered: %-16llu\n",
1018 sbi->rw_iostat[APP_BUFFERED_READ_IO]);
1019 seq_printf(seq, "app direct: %-16llu\n",
1020 sbi->rw_iostat[APP_DIRECT_READ_IO]);
1021 seq_printf(seq, "app mapped: %-16llu\n",
1022 sbi->rw_iostat[APP_MAPPED_READ_IO]);
1024 /* print fs read IOs */
1025 seq_printf(seq, "fs data: %-16llu\n",
1026 sbi->rw_iostat[FS_DATA_READ_IO]);
1027 seq_printf(seq, "fs gc data: %-16llu\n",
1028 sbi->rw_iostat[FS_GDATA_READ_IO]);
1029 seq_printf(seq, "fs compr_data: %-16llu\n",
1030 sbi->rw_iostat[FS_CDATA_READ_IO]);
1031 seq_printf(seq, "fs node: %-16llu\n",
1032 sbi->rw_iostat[FS_NODE_READ_IO]);
1033 seq_printf(seq, "fs meta: %-16llu\n",
1034 sbi->rw_iostat[FS_META_READ_IO]);
1036 /* print other IOs */
1037 seq_puts(seq, "[OTHER]\n");
1038 seq_printf(seq, "fs discard: %-16llu\n",
1039 sbi->rw_iostat[FS_DISCARD]);
1044 static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
1047 struct super_block *sb = seq->private;
1048 struct f2fs_sb_info *sbi = F2FS_SB(sb);
1049 struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
1052 seq_puts(seq, "format: victim_secmap bitmaps\n");
1054 for (i = 0; i < MAIN_SECS(sbi); i++) {
1056 seq_printf(seq, "%-10d", i);
1057 seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
1058 if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
1059 seq_putc(seq, '\n');
1066 int __init f2fs_init_sysfs(void)
1070 kobject_set_name(&f2fs_kset.kobj, "f2fs");
1071 f2fs_kset.kobj.parent = fs_kobj;
1072 ret = kset_register(&f2fs_kset);
1076 ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
1079 kobject_put(&f2fs_feat);
1080 kset_unregister(&f2fs_kset);
1082 f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
1087 void f2fs_exit_sysfs(void)
1089 kobject_put(&f2fs_feat);
1090 kset_unregister(&f2fs_kset);
1091 remove_proc_entry("fs/f2fs", NULL);
1092 f2fs_proc_root = NULL;
1095 int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
1097 struct super_block *sb = sbi->sb;
1100 sbi->s_kobj.kset = &f2fs_kset;
1101 init_completion(&sbi->s_kobj_unregister);
1102 err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
1107 sbi->s_stat_kobj.kset = &f2fs_kset;
1108 init_completion(&sbi->s_stat_kobj_unregister);
1109 err = kobject_init_and_add(&sbi->s_stat_kobj, &f2fs_stat_ktype,
1110 &sbi->s_kobj, "stat");
1115 sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
1118 proc_create_single_data("segment_info", S_IRUGO, sbi->s_proc,
1119 segment_info_seq_show, sb);
1120 proc_create_single_data("segment_bits", S_IRUGO, sbi->s_proc,
1121 segment_bits_seq_show, sb);
1122 proc_create_single_data("iostat_info", S_IRUGO, sbi->s_proc,
1123 iostat_info_seq_show, sb);
1124 proc_create_single_data("victim_bits", S_IRUGO, sbi->s_proc,
1125 victim_bits_seq_show, sb);
1129 kobject_put(&sbi->s_stat_kobj);
1130 wait_for_completion(&sbi->s_stat_kobj_unregister);
1132 kobject_put(&sbi->s_kobj);
1133 wait_for_completion(&sbi->s_kobj_unregister);
1137 void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
1140 remove_proc_entry("iostat_info", sbi->s_proc);
1141 remove_proc_entry("segment_info", sbi->s_proc);
1142 remove_proc_entry("segment_bits", sbi->s_proc);
1143 remove_proc_entry("victim_bits", sbi->s_proc);
1144 remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
1147 kobject_del(&sbi->s_stat_kobj);
1148 kobject_put(&sbi->s_stat_kobj);
1149 wait_for_completion(&sbi->s_stat_kobj_unregister);
1151 kobject_del(&sbi->s_kobj);
1152 kobject_put(&sbi->s_kobj);
1153 wait_for_completion(&sbi->s_kobj_unregister);