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-rw-r--r--fs/f2fs/sysfs.c252
1 files changed, 222 insertions, 30 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 9adc202fcd6f..e2c258f717cd 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -11,13 +11,13 @@
*/
#include <linux/proc_fs.h>
#include <linux/f2fs_fs.h>
+#include <linux/seq_file.h>
#include "f2fs.h"
#include "segment.h"
#include "gc.h"
static struct proc_dir_entry *f2fs_proc_root;
-static struct kset *f2fs_kset;
/* Sysfs support for f2fs */
enum {
@@ -40,6 +40,7 @@ struct f2fs_attr {
const char *, size_t);
int struct_type;
int offset;
+ int id;
};
static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
@@ -75,6 +76,34 @@ static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a,
BD_PART_WRITTEN(sbi)));
}
+static ssize_t features_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ struct super_block *sb = sbi->sb;
+ int len = 0;
+
+ if (!sb->s_bdev->bd_part)
+ return snprintf(buf, PAGE_SIZE, "0\n");
+
+ if (f2fs_sb_has_crypto(sb))
+ len += snprintf(buf, PAGE_SIZE - len, "%s",
+ "encryption");
+ if (f2fs_sb_mounted_blkzoned(sb))
+ len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "blkzoned");
+ if (f2fs_sb_has_extra_attr(sb))
+ len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "extra_attr");
+ if (f2fs_sb_has_project_quota(sb))
+ len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "projquota");
+ if (f2fs_sb_has_inode_chksum(sb))
+ len += snprintf(buf + len, PAGE_SIZE - len, "%s%s",
+ len ? ", " : "", "inode_checksum");
+ len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+ return len;
+}
+
static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
struct f2fs_sb_info *sbi, char *buf)
{
@@ -123,7 +152,39 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
spin_unlock(&sbi->stat_lock);
return count;
}
+
+ if (!strcmp(a->attr.name, "discard_granularity")) {
+ struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
+ int i;
+
+ if (t == 0 || t > MAX_PLIST_NUM)
+ return -EINVAL;
+ if (t == *ui)
+ return count;
+
+ mutex_lock(&dcc->cmd_lock);
+ for (i = 0; i < MAX_PLIST_NUM; i++) {
+ if (i >= t - 1)
+ dcc->pend_list_tag[i] |= P_ACTIVE;
+ else
+ dcc->pend_list_tag[i] &= (~P_ACTIVE);
+ }
+ mutex_unlock(&dcc->cmd_lock);
+
+ *ui = t;
+ return count;
+ }
+
*ui = t;
+
+ 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);
+ }
+
return count;
}
@@ -154,6 +215,30 @@ static void f2fs_sb_release(struct kobject *kobj)
complete(&sbi->s_kobj_unregister);
}
+enum feat_id {
+ FEAT_CRYPTO = 0,
+ FEAT_BLKZONED,
+ FEAT_ATOMIC_WRITE,
+ FEAT_EXTRA_ATTR,
+ FEAT_PROJECT_QUOTA,
+ FEAT_INODE_CHECKSUM,
+};
+
+static ssize_t f2fs_feature_show(struct f2fs_attr *a,
+ struct f2fs_sb_info *sbi, char *buf)
+{
+ switch (a->id) {
+ case FEAT_CRYPTO:
+ case FEAT_BLKZONED:
+ case FEAT_ATOMIC_WRITE:
+ case FEAT_EXTRA_ATTR:
+ case FEAT_PROJECT_QUOTA:
+ case FEAT_INODE_CHECKSUM:
+ return snprintf(buf, PAGE_SIZE, "supported\n");
+ }
+ return 0;
+}
+
#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
static struct f2fs_attr f2fs_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
@@ -171,12 +256,23 @@ static struct f2fs_attr f2fs_attr_##_name = { \
#define F2FS_GENERAL_RO_ATTR(name) \
static struct f2fs_attr f2fs_attr_##name = __ATTR(name, 0444, name##_show, NULL)
+#define F2FS_FEATURE_RO_ATTR(_name, _id) \
+static struct f2fs_attr f2fs_attr_##_name = { \
+ .attr = {.name = __stringify(_name), .mode = 0444 }, \
+ .show = f2fs_feature_show, \
+ .id = _id, \
+}
+
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_urgent_sleep_time,
+ 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(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);
F2FS_RW_ATTR(RESERVED_BLOCKS, f2fs_sb_info, reserved_blocks, reserved_blocks);
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);
@@ -190,20 +286,36 @@ F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search);
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, iostat_enable, iostat_enable);
#ifdef CONFIG_F2FS_FAULT_INJECTION
F2FS_RW_ATTR(FAULT_INFO_RATE, f2fs_fault_info, inject_rate, inject_rate);
F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
#endif
F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes);
+F2FS_GENERAL_RO_ATTR(features);
+
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO);
+#endif
+#ifdef CONFIG_BLK_DEV_ZONED
+F2FS_FEATURE_RO_ATTR(block_zoned, FEAT_BLKZONED);
+#endif
+F2FS_FEATURE_RO_ATTR(atomic_write, FEAT_ATOMIC_WRITE);
+F2FS_FEATURE_RO_ATTR(extra_attr, FEAT_EXTRA_ATTR);
+F2FS_FEATURE_RO_ATTR(project_quota, FEAT_PROJECT_QUOTA);
+F2FS_FEATURE_RO_ATTR(inode_checksum, FEAT_INODE_CHECKSUM);
#define ATTR_LIST(name) (&f2fs_attr_##name.attr)
static struct attribute *f2fs_attrs[] = {
+ ATTR_LIST(gc_urgent_sleep_time),
ATTR_LIST(gc_min_sleep_time),
ATTR_LIST(gc_max_sleep_time),
ATTR_LIST(gc_no_gc_sleep_time),
ATTR_LIST(gc_idle),
+ ATTR_LIST(gc_urgent),
ATTR_LIST(reclaim_segments),
ATTR_LIST(max_small_discards),
+ ATTR_LIST(discard_granularity),
ATTR_LIST(batched_trim_sections),
ATTR_LIST(ipu_policy),
ATTR_LIST(min_ipu_util),
@@ -216,26 +328,59 @@ static struct attribute *f2fs_attrs[] = {
ATTR_LIST(dirty_nats_ratio),
ATTR_LIST(cp_interval),
ATTR_LIST(idle_interval),
+ ATTR_LIST(iostat_enable),
#ifdef CONFIG_F2FS_FAULT_INJECTION
ATTR_LIST(inject_rate),
ATTR_LIST(inject_type),
#endif
ATTR_LIST(lifetime_write_kbytes),
+ ATTR_LIST(features),
ATTR_LIST(reserved_blocks),
NULL,
};
+static struct attribute *f2fs_feat_attrs[] = {
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+ ATTR_LIST(encryption),
+#endif
+#ifdef CONFIG_BLK_DEV_ZONED
+ ATTR_LIST(block_zoned),
+#endif
+ ATTR_LIST(atomic_write),
+ ATTR_LIST(extra_attr),
+ ATTR_LIST(project_quota),
+ ATTR_LIST(inode_checksum),
+ NULL,
+};
+
static const struct sysfs_ops f2fs_attr_ops = {
.show = f2fs_attr_show,
.store = f2fs_attr_store,
};
-static struct kobj_type f2fs_ktype = {
+static struct kobj_type f2fs_sb_ktype = {
.default_attrs = f2fs_attrs,
.sysfs_ops = &f2fs_attr_ops,
.release = f2fs_sb_release,
};
+static struct kobj_type f2fs_ktype = {
+ .sysfs_ops = &f2fs_attr_ops,
+};
+
+static struct kset f2fs_kset = {
+ .kobj = {.ktype = &f2fs_ktype},
+};
+
+static struct kobj_type f2fs_feat_ktype = {
+ .default_attrs = f2fs_feat_attrs,
+ .sysfs_ops = &f2fs_attr_ops,
+};
+
+static struct kobject f2fs_feat = {
+ .kset = &f2fs_kset,
+};
+
static int segment_info_seq_show(struct seq_file *seq, void *offset)
{
struct super_block *sb = seq->private;
@@ -287,6 +432,48 @@ 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)
+{
+ struct super_block *sb = seq->private;
+ struct f2fs_sb_info *sbi = F2FS_SB(sb);
+ time64_t now = ktime_get_real_seconds();
+
+ if (!sbi->iostat_enable)
+ return 0;
+
+ seq_printf(seq, "time: %-16llu\n", now);
+
+ /* print app IOs */
+ seq_printf(seq, "app buffered: %-16llu\n",
+ sbi->write_iostat[APP_BUFFERED_IO]);
+ seq_printf(seq, "app direct: %-16llu\n",
+ sbi->write_iostat[APP_DIRECT_IO]);
+ seq_printf(seq, "app mapped: %-16llu\n",
+ sbi->write_iostat[APP_MAPPED_IO]);
+
+ /* print fs IOs */
+ seq_printf(seq, "fs data: %-16llu\n",
+ sbi->write_iostat[FS_DATA_IO]);
+ seq_printf(seq, "fs node: %-16llu\n",
+ sbi->write_iostat[FS_NODE_IO]);
+ seq_printf(seq, "fs meta: %-16llu\n",
+ sbi->write_iostat[FS_META_IO]);
+ seq_printf(seq, "fs gc data: %-16llu\n",
+ sbi->write_iostat[FS_GC_DATA_IO]);
+ seq_printf(seq, "fs gc node: %-16llu\n",
+ sbi->write_iostat[FS_GC_NODE_IO]);
+ seq_printf(seq, "fs cp data: %-16llu\n",
+ sbi->write_iostat[FS_CP_DATA_IO]);
+ seq_printf(seq, "fs cp node: %-16llu\n",
+ sbi->write_iostat[FS_CP_NODE_IO]);
+ seq_printf(seq, "fs cp meta: %-16llu\n",
+ sbi->write_iostat[FS_CP_META_IO]);
+ seq_printf(seq, "fs discard: %-16llu\n",
+ sbi->write_iostat[FS_DISCARD]);
+
+ return 0;
+}
+
#define F2FS_PROC_FILE_DEF(_name) \
static int _name##_open_fs(struct inode *inode, struct file *file) \
{ \
@@ -302,28 +489,47 @@ 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);
-int __init f2fs_register_sysfs(void)
+int __init f2fs_init_sysfs(void)
{
- f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
+ int ret;
- f2fs_kset = kset_create_and_add("f2fs", NULL, fs_kobj);
- if (!f2fs_kset)
- return -ENOMEM;
- return 0;
+ kobject_set_name(&f2fs_kset.kobj, "f2fs");
+ f2fs_kset.kobj.parent = fs_kobj;
+ ret = kset_register(&f2fs_kset);
+ if (ret)
+ return ret;
+
+ ret = kobject_init_and_add(&f2fs_feat, &f2fs_feat_ktype,
+ NULL, "features");
+ if (ret)
+ kset_unregister(&f2fs_kset);
+ else
+ f2fs_proc_root = proc_mkdir("fs/f2fs", NULL);
+ return ret;
}
-void f2fs_unregister_sysfs(void)
+void f2fs_exit_sysfs(void)
{
- kset_unregister(f2fs_kset);
+ kobject_put(&f2fs_feat);
+ kset_unregister(&f2fs_kset);
remove_proc_entry("fs/f2fs", NULL);
+ f2fs_proc_root = NULL;
}
-int f2fs_init_sysfs(struct f2fs_sb_info *sbi)
+int f2fs_register_sysfs(struct f2fs_sb_info *sbi)
{
struct super_block *sb = sbi->sb;
int err;
+ sbi->s_kobj.kset = &f2fs_kset;
+ init_completion(&sbi->s_kobj_unregister);
+ err = kobject_init_and_add(&sbi->s_kobj, &f2fs_sb_ktype, NULL,
+ "%s", sb->s_id);
+ if (err)
+ return err;
+
if (f2fs_proc_root)
sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
@@ -332,33 +538,19 @@ int f2fs_init_sysfs(struct f2fs_sb_info *sbi)
&f2fs_seq_segment_info_fops, sb);
proc_create_data("segment_bits", S_IRUGO, sbi->s_proc,
&f2fs_seq_segment_bits_fops, sb);
+ proc_create_data("iostat_info", S_IRUGO, sbi->s_proc,
+ &f2fs_seq_iostat_info_fops, sb);
}
-
- sbi->s_kobj.kset = f2fs_kset;
- init_completion(&sbi->s_kobj_unregister);
- err = kobject_init_and_add(&sbi->s_kobj, &f2fs_ktype, NULL,
- "%s", sb->s_id);
- if (err)
- goto err_out;
return 0;
-err_out:
- if (sbi->s_proc) {
- remove_proc_entry("segment_info", sbi->s_proc);
- remove_proc_entry("segment_bits", sbi->s_proc);
- remove_proc_entry(sb->s_id, f2fs_proc_root);
- }
- return err;
}
-void f2fs_exit_sysfs(struct f2fs_sb_info *sbi)
+void f2fs_unregister_sysfs(struct f2fs_sb_info *sbi)
{
- kobject_del(&sbi->s_kobj);
- kobject_put(&sbi->s_kobj);
- wait_for_completion(&sbi->s_kobj_unregister);
-
if (sbi->s_proc) {
+ 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(sbi->sb->s_id, f2fs_proc_root);
}
+ kobject_del(&sbi->s_kobj);
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-04 16:50:14 +0100