linux/fs/ocfs2/filecheck.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * filecheck.c
 *
 * Code which implements online file check.
 *
 * Copyright (C) 2016 SuSE.  All rights reserved.
 */

#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/sysfs.h>
#include <linux/sysctl.h>
#include <cluster/masklog.h>

#include "ocfs2.h"
#include "ocfs2_fs.h"
#include "stackglue.h"
#include "inode.h"

#include "filecheck.h"


/* File check error strings,
 * must correspond with error number in header file.
 */
static const char * const ocfs2_filecheck_errs[] = …;

struct ocfs2_filecheck_entry { … };

struct ocfs2_filecheck_args { … };

static const char *
ocfs2_filecheck_error(int errno)
{ … }

static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
					struct kobj_attribute *attr,
					char *buf);
static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
					struct kobj_attribute *attr,
					const char *buf, size_t count);
static struct kobj_attribute ocfs2_filecheck_attr_chk = …;
static struct kobj_attribute ocfs2_filecheck_attr_fix = …;
static struct kobj_attribute ocfs2_filecheck_attr_set = …;
static struct attribute *ocfs2_filecheck_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static void ocfs2_filecheck_release(struct kobject *kobj)
{ … }

static ssize_t
ocfs2_filecheck_show(struct kobject *kobj, struct attribute *attr, char *buf)
{ … }

static ssize_t
ocfs2_filecheck_store(struct kobject *kobj, struct attribute *attr,
			const char *buf, size_t count)
{ … }

static const struct sysfs_ops ocfs2_filecheck_ops = …;

static struct kobj_type ocfs2_ktype_filecheck = …;

static void
ocfs2_filecheck_sysfs_free(struct ocfs2_filecheck_sysfs_entry *entry)
{ … }

int ocfs2_filecheck_create_sysfs(struct ocfs2_super *osb)
{ … }

void ocfs2_filecheck_remove_sysfs(struct ocfs2_super *osb)
{ … }

static int
ocfs2_filecheck_erase_entries(struct ocfs2_filecheck_sysfs_entry *ent,
			      unsigned int count);
static int
ocfs2_filecheck_adjust_max(struct ocfs2_filecheck_sysfs_entry *ent,
			   unsigned int len)
{ … }

#define OCFS2_FILECHECK_ARGS_LEN …
static int
ocfs2_filecheck_args_get_long(const char *buf, size_t count,
			      unsigned long *val)
{ … }

static int
ocfs2_filecheck_type_parse(const char *name, unsigned int *type)
{ … }

static int
ocfs2_filecheck_args_parse(const char *name, const char *buf, size_t count,
			   struct ocfs2_filecheck_args *args)
{ … }

static ssize_t ocfs2_filecheck_attr_show(struct kobject *kobj,
				    struct kobj_attribute *attr,
				    char *buf)
{ … }

static inline int
ocfs2_filecheck_is_dup_entry(struct ocfs2_filecheck_sysfs_entry *ent,
				unsigned long ino)
{ … }

static inline int
ocfs2_filecheck_erase_entry(struct ocfs2_filecheck_sysfs_entry *ent)
{ … }

static int
ocfs2_filecheck_erase_entries(struct ocfs2_filecheck_sysfs_entry *ent,
			      unsigned int count)
{ … }

static void
ocfs2_filecheck_done_entry(struct ocfs2_filecheck_sysfs_entry *ent,
			   struct ocfs2_filecheck_entry *entry)
{ … }

static unsigned int
ocfs2_filecheck_handle(struct ocfs2_super *osb,
		       unsigned long ino, unsigned int flags)
{ … }

static void
ocfs2_filecheck_handle_entry(struct ocfs2_filecheck_sysfs_entry *ent,
			     struct ocfs2_filecheck_entry *entry)
{ … }

static ssize_t ocfs2_filecheck_attr_store(struct kobject *kobj,
				     struct kobj_attribute *attr,
				     const char *buf, size_t count)
{ … }