summaryrefslogtreecommitdiff
path: root/fs/f2fs/sysfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/f2fs/sysfs.c')
-rw-r--r--fs/f2fs/sysfs.c178
1 files changed, 144 insertions, 34 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 2c53de9251be..9e910b15bb4b 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -1,14 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* f2fs sysfs interface
*
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
* Copyright (c) 2017 Chao Yu <chao@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
+#include <linux/compiler.h>
#include <linux/proc_fs.h>
#include <linux/f2fs_fs.h>
#include <linux/seq_file.h>
@@ -70,6 +68,20 @@ static ssize_t dirty_segments_show(struct f2fs_attr *a,
(unsigned long long)(dirty_segments(sbi)));
}
+static ssize_t unusable_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ block_t unusable;
+
+ if (test_opt(sbi, DISABLE_CHECKPOINT))
+ unusable = sbi->unusable_block_count;
+ else
+ unusable = f2fs_get_unusable_blocks(sbi);
+ return snprintf(buf, PAGE_SIZE, "%llu\n",
+ (unsigned long long)unusable);
+}
+
+
static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
@@ -92,33 +104,36 @@ static ssize_t features_show(struct f2fs_attr *a,
if (!sb->s_bdev->bd_part)
return snprintf(buf, PAGE_SIZE, "0\n");
- if (f2fs_sb_has_encrypt(sb))
+ if (f2fs_sb_has_encrypt(sbi))
len += snprintf(buf, PAGE_SIZE - len, "%s",
"encryption");
- if (f2fs_sb_has_blkzoned(sb))
+ if (f2fs_sb_has_blkzoned(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "blkzoned");
- if (f2fs_sb_has_extra_attr(sb))
+ if (f2fs_sb_has_extra_attr(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "extra_attr");
- if (f2fs_sb_has_project_quota(sb))
+ if (f2fs_sb_has_project_quota(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "projquota");
- if (f2fs_sb_has_inode_chksum(sb))
+ if (f2fs_sb_has_inode_chksum(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "inode_checksum");
- if (f2fs_sb_has_flexible_inline_xattr(sb))
+ if (f2fs_sb_has_flexible_inline_xattr(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "flexible_inline_xattr");
- if (f2fs_sb_has_quota_ino(sb))
+ if (f2fs_sb_has_quota_ino(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "quota_ino");
- if (f2fs_sb_has_inode_crtime(sb))
+ if (f2fs_sb_has_inode_crtime(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "inode_crtime");
- if (f2fs_sb_has_lost_found(sb))
+ if (f2fs_sb_has_lost_found(sbi))
len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
len ? ", " : "", "lost_found");
+ if (f2fs_sb_has_sb_chksum(sbi))
+ len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "sb_checksum");
len += snprintf(buf + len, PAGE_SIZE - len, "\n");
return len;
}
@@ -147,13 +162,13 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
int len = 0, i;
len += snprintf(buf + len, PAGE_SIZE - len,
- "cold file extenstion:\n");
+ "cold file extension:\n");
for (i = 0; i < cold_count; i++)
len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
extlist[i]);
len += snprintf(buf + len, PAGE_SIZE - len,
- "hot file extenstion:\n");
+ "hot file extension:\n");
for (i = cold_count; i < cold_count + hot_count; i++)
len += snprintf(buf + len, PAGE_SIZE - len, "%s\n",
extlist[i]);
@@ -165,7 +180,7 @@ static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
}
-static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
+static ssize_t __sbi_store(struct f2fs_attr *a,
struct f2fs_sb_info *sbi,
const char *buf, size_t count)
{
@@ -201,13 +216,13 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
down_write(&sbi->sb_lock);
- ret = update_extension_list(sbi, name, hot, set);
+ ret = f2fs_update_extension_list(sbi, name, hot, set);
if (ret)
goto out;
ret = f2fs_commit_super(sbi, false);
if (ret)
- update_extension_list(sbi, name, hot, !set);
+ f2fs_update_extension_list(sbi, name, hot, !set);
out:
up_write(&sbi->sb_lock);
return ret ? ret : count;
@@ -221,6 +236,8 @@ out:
#ifdef CONFIG_F2FS_FAULT_INJECTION
if (a->struct_type == FAULT_INFO_TYPE && t >= (1 << FAULT_MAX))
return -EINVAL;
+ if (a->struct_type == FAULT_INFO_RATE && t >= UINT_MAX)
+ return -EINVAL;
#endif
if (a->struct_type == RESERVED_BLOCKS) {
spin_lock(&sbi->stat_lock);
@@ -245,22 +262,70 @@ out:
return count;
}
+ if (!strcmp(a->attr.name, "migration_granularity")) {
+ if (t == 0 || t > sbi->segs_per_sec)
+ return -EINVAL;
+ }
+
if (!strcmp(a->attr.name, "trim_sections"))
return -EINVAL;
- *ui = t;
+ if (!strcmp(a->attr.name, "gc_urgent")) {
+ if (t >= 1) {
+ sbi->gc_mode = GC_URGENT;
+ if (sbi->gc_thread) {
+ sbi->gc_thread->gc_wake = 1;
+ wake_up_interruptible_all(
+ &sbi->gc_thread->gc_wait_queue_head);
+ wake_up_discard_thread(sbi, true);
+ }
+ } else {
+ sbi->gc_mode = GC_NORMAL;
+ }
+ return count;
+ }
+ if (!strcmp(a->attr.name, "gc_idle")) {
+ if (t == GC_IDLE_CB)
+ sbi->gc_mode = GC_IDLE_CB;
+ else if (t == GC_IDLE_GREEDY)
+ sbi->gc_mode = GC_IDLE_GREEDY;
+ else
+ sbi->gc_mode = GC_NORMAL;
+ return count;
+ }
+
- if (!strcmp(a->attr.name, "iostat_enable") && *ui == 0)
- f2fs_reset_iostat(sbi);
- if (!strcmp(a->attr.name, "gc_urgent") && t == 1 && sbi->gc_thread) {
- sbi->gc_thread->gc_wake = 1;
- wake_up_interruptible_all(&sbi->gc_thread->gc_wait_queue_head);
- wake_up_discard_thread(sbi, true);
+ if (!strcmp(a->attr.name, "iostat_enable")) {
+ sbi->iostat_enable = !!t;
+ if (!sbi->iostat_enable)
+ f2fs_reset_iostat(sbi);
+ return count;
}
+ *ui = (unsigned int)t;
+
return count;
}
+static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi,
+ const char *buf, size_t count)
+{
+ ssize_t ret;
+ bool gc_entry = (!strcmp(a->attr.name, "gc_urgent") ||
+ a->struct_type == GC_THREAD);
+
+ if (gc_entry) {
+ if (!down_read_trylock(&sbi->sb->s_umount))
+ return -EAGAIN;
+ }
+ ret = __sbi_store(a, sbi, buf, count);
+ if (gc_entry)
+ up_read(&sbi->sb->s_umount);
+
+ return ret;
+}
+
static ssize_t f2fs_attr_show(struct kobject *kobj,
struct attribute *attr, char *buf)
{
@@ -299,6 +364,7 @@ enum feat_id {
FEAT_QUOTA_INO,
FEAT_INODE_CRTIME,
FEAT_LOST_FOUND,
+ FEAT_SB_CHECKSUM,
};
static ssize_t f2fs_feature_show(struct f2fs_attr *a,
@@ -315,6 +381,7 @@ static ssize_t f2fs_feature_show(struct f2fs_attr *a,
case FEAT_QUOTA_INO:
case FEAT_INODE_CRTIME:
case FEAT_LOST_FOUND:
+ case FEAT_SB_CHECKSUM:
return snprintf(buf, PAGE_SIZE, "supported\n");
}
return 0;
@@ -349,8 +416,8 @@ F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
-F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle);
-F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent, gc_urgent);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle, gc_mode);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent, gc_mode);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, max_small_discards, max_discards);
F2FS_RW_ATTR(DCC_INFO, discard_cmd_control, discard_granularity, discard_granularity);
@@ -359,15 +426,22 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, batched_trim_sections, trim_sections);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks);
+F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_seq_blocks, min_seq_blocks);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_hot_blocks, min_hot_blocks);
F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ssr_sections, min_ssr_sections);
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh);
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages);
F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, dirty_nats_ratio, dirty_nats_ratio);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, migration_granularity, migration_granularity);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, interval_time[CP_TIME]);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, idle_interval, interval_time[REQ_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, discard_idle_interval,
+ interval_time[DISCARD_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_idle_interval, interval_time[GC_TIME]);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info,
+ umount_discard_timeout, interval_time[UMOUNT_DISCARD_TIMEOUT]);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, iostat_enable, iostat_enable);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, readdir_ra, readdir_ra);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_pin_file_thresh, gc_pin_file_threshold);
@@ -380,6 +454,7 @@ F2FS_GENERAL_RO_ATTR(dirty_segments);
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
F2FS_GENERAL_RO_ATTR(features);
F2FS_GENERAL_RO_ATTR(current_reserved_blocks);
+F2FS_GENERAL_RO_ATTR(unusable);
#ifdef CONFIG_F2FS_FS_ENCRYPTION
F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
@@ -395,6 +470,7 @@ F2FS_FEATURE_RO_ATTR(flexible_inline_xattr, FEAT_FLEXIBLE_INLINE_XATTR);
F2FS_FEATURE_RO_ATTR(quota_ino, FEAT_QUOTA_INO);
F2FS_FEATURE_RO_ATTR(inode_crtime, FEAT_INODE_CRTIME);
F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND);
+F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM);
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
@@ -411,15 +487,20 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(ipu_policy),
ATTR_LIST(min_ipu_util),
ATTR_LIST(min_fsync_blocks),
+ ATTR_LIST(min_seq_blocks),
ATTR_LIST(min_hot_blocks),
ATTR_LIST(min_ssr_sections),
ATTR_LIST(max_victim_search),
+ ATTR_LIST(migration_granularity),
ATTR_LIST(dir_level),
ATTR_LIST(ram_thresh),
ATTR_LIST(ra_nid_pages),
ATTR_LIST(dirty_nats_ratio),
ATTR_LIST(cp_interval),
ATTR_LIST(idle_interval),
+ ATTR_LIST(discard_idle_interval),
+ ATTR_LIST(gc_idle_interval),
+ ATTR_LIST(umount_discard_timeout),
ATTR_LIST(iostat_enable),
ATTR_LIST(readdir_ra),
ATTR_LIST(gc_pin_file_thresh),
@@ -429,6 +510,7 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(inject_type),
#endif
ATTR_LIST(dirty_segments),
+ ATTR_LIST(unusable),
ATTR_LIST(lifetime_write_kbytes),
ATTR_LIST(features),
ATTR_LIST(reserved_blocks),
@@ -451,6 +533,7 @@ static struct attribute *f2fs_feat_attrs[] = {
ATTR_LIST(quota_ino),
ATTR_LIST(inode_crtime),
ATTR_LIST(lost_found),
+ ATTR_LIST(sb_checksum),
NULL,
};
@@ -482,7 +565,8 @@ static struct kobject f2fs_feat = {
.kset = &f2fs_kset,
};
-static int segment_info_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused segment_info_seq_show(struct seq_file *seq,
+ void *offset)
{
struct super_block *sb = seq->private;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
@@ -498,8 +582,7 @@ static int segment_info_seq_show(struct seq_file *seq, void *offset)
if ((i % 10) == 0)
seq_printf(seq, "%-10d", i);
- seq_printf(seq, "%d|%-3u", se->type,
- get_valid_blocks(sbi, i, false));
+ seq_printf(seq, "%d|%-3u", se->type, se->valid_blocks);
if ((i % 10) == 9 || i == (total_segs - 1))
seq_putc(seq, '\n');
else
@@ -509,7 +592,8 @@ static int segment_info_seq_show(struct seq_file *seq, void *offset)
return 0;
}
-static int segment_bits_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused segment_bits_seq_show(struct seq_file *seq,
+ void *offset)
{
struct super_block *sb = seq->private;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
@@ -524,8 +608,7 @@ static int segment_bits_seq_show(struct seq_file *seq, void *offset)
struct seg_entry *se = get_seg_entry(sbi, i);
seq_printf(seq, "%-10d", i);
- seq_printf(seq, "%d|%-3u|", se->type,
- get_valid_blocks(sbi, i, false));
+ seq_printf(seq, "%d|%-3u|", se->type, se->valid_blocks);
for (j = 0; j < SIT_VBLOCK_MAP_SIZE; j++)
seq_printf(seq, " %.2x", se->cur_valid_map[j]);
seq_putc(seq, '\n');
@@ -533,7 +616,8 @@ static int segment_bits_seq_show(struct seq_file *seq, void *offset)
return 0;
}
-static int iostat_info_seq_show(struct seq_file *seq, void *offset)
+static int __maybe_unused iostat_info_seq_show(struct seq_file *seq,
+ void *offset)
{
struct super_block *sb = seq->private;
struct f2fs_sb_info *sbi = F2FS_SB(sb);
@@ -575,6 +659,28 @@ static int iostat_info_seq_show(struct seq_file *seq, void *offset)
return 0;
}
+static int __maybe_unused victim_bits_seq_show(struct seq_file *seq,
+ void *offset)
+{
+ struct super_block *sb = seq->private;
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
+ int i;
+
+ seq_puts(seq, "format: victim_secmap bitmaps\n");
+
+ for (i = 0; i < MAIN_SECS(sbi); i++) {
+ if ((i % 10) == 0)
+ seq_printf(seq, "%-10d", i);
+ seq_printf(seq, "%d", test_bit(i, dirty_i->victim_secmap) ? 1 : 0);
+ if ((i % 10) == 9 || i == (MAIN_SECS(sbi) - 1))
+ seq_putc(seq, '\n');
+ else
+ seq_putc(seq, ' ');
+ }
+ return 0;
+}
+
#define F2FS_PROC_FILE_DEF(_name) \
static int _name##_open_fs(struct inode *inode, struct file *file) \
{ \
@@ -591,6 +697,7 @@ static const struct file_operations f2fs_seq_##_name##_fops = { \
F2FS_PROC_FILE_DEF(segment_info);
F2FS_PROC_FILE_DEF(segment_bits);
F2FS_PROC_FILE_DEF(iostat_info);
+F2FS_PROC_FILE_DEF(victim_bits);
int __init f2fs_init_sysfs(void)
{
@@ -641,6 +748,8 @@ int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
&f2fs_seq_segment_bits_fops, sb);
proc_create_data("iostat_info", S_IRUGO, sbi->s_proc,
&f2fs_seq_iostat_info_fops, sb);
+ proc_create_data("victim_bits", S_IRUGO, sbi->s_proc,
+ &f2fs_seq_victim_bits_fops, sb);
}
return 0;
}
@@ -651,6 +760,7 @@ void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
remove_proc_entry("iostat_info", sbi->s_proc);
remove_proc_entry("segment_info", sbi->s_proc);
remove_proc_entry("segment_bits", sbi->s_proc);
+ remove_proc_entry("victim_bits", sbi->s_proc);
remove_proc_entry(sbi->sb->s_id, f2fs_proc_root);
}
kobject_del(&sbi->s_kobj);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-23 23:32:38 +0000