linux-imx

/*

 *  linux/fs/hfs/super.c

 *

 * Copyright (C) 1995-1997  Paul H. Hargrove

 * (C) 2003 Ardis Technologies <roman@ardistech.com>

 * This file may be distributed under the terms of the GNU General Public License.

 *

 * This file contains hfs_read_super(), some of the super_ops and

 * init_hfs_fs() and exit_hfs_fs().  The remaining super_ops are in

 * inode.c since they deal with inodes.

 *

 * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds

 */

​

#include <linux/module.h>

#include <linux/blkdev.h>

#include <linux/backing-dev.h>

#include <linux/mount.h>

#include <linux/init.h>

#include <linux/nls.h>

#include <linux/parser.h>

#include <linux/seq_file.h>

#include <linux/slab.h>

#include <linux/vfs.h>

​

#include "hfs_fs.h"

#include "btree.h"

​

static struct kmem_cache *hfs_inode_cachep;

​

MODULE_LICENSE("GPL");

​

static int hfs_sync_fs(struct super_block *sb, int wait)

{

    hfs_mdb_commit(sb);

    return 0;

}

​

/*

 * hfs_put_super()

 *

 * This is the put_super() entry in the super_operations structure for

 * HFS filesystems.  The purpose is to release the resources

 * associated with the superblock sb.

 */

static void hfs_put_super(struct super_block *sb)

{

    cancel_delayed_work_sync(&HFS_SB(sb)->mdb_work);

    hfs_mdb_close(sb);

    /* release the MDB's resources */

    hfs_mdb_put(sb);

}

​

static void flush_mdb(struct work_struct *work)

{

    struct hfs_sb_info *sbi;

    struct super_block *sb;

​

    sbi = container_of(work, struct hfs_sb_info, mdb_work.work);

    sb = sbi->sb;

​

    spin_lock(&sbi->work_lock);

    sbi->work_queued = 0;