linux/fs/zonefs/sysfs.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Simple file system for zoned block devices exposing zones as files.
 *
 * Copyright (C) 2022 Western Digital Corporation or its affiliates.
 */
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>

#include "zonefs.h"

struct zonefs_sysfs_attr { … };

#define ZONEFS_SYSFS_ATTR_RO(name) …

#define ATTR_LIST(name) …

static ssize_t zonefs_sysfs_attr_show(struct kobject *kobj,
				      struct attribute *attr, char *buf)
{ … }

static ssize_t max_wro_seq_files_show(struct zonefs_sb_info *sbi, char *buf)
{ … }
ZONEFS_SYSFS_ATTR_RO(…);

static ssize_t nr_wro_seq_files_show(struct zonefs_sb_info *sbi, char *buf)
{ … }
ZONEFS_SYSFS_ATTR_RO(…);

static ssize_t max_active_seq_files_show(struct zonefs_sb_info *sbi, char *buf)
{ … }
ZONEFS_SYSFS_ATTR_RO(…);

static ssize_t nr_active_seq_files_show(struct zonefs_sb_info *sbi, char *buf)
{ … }
ZONEFS_SYSFS_ATTR_RO(…);

static struct attribute *zonefs_sysfs_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static void zonefs_sysfs_sb_release(struct kobject *kobj)
{ … }

static const struct sysfs_ops zonefs_sysfs_attr_ops = …;

static const struct kobj_type zonefs_sb_ktype = …;

static struct kobject *zonefs_sysfs_root;

int zonefs_sysfs_register(struct super_block *sb)
{ … }

void zonefs_sysfs_unregister(struct super_block *sb)
{ … }

int __init zonefs_sysfs_init(void)
{ … }

void zonefs_sysfs_exit(void)
{ … }