linux/fs/gfs2/super.h
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   1/*
   2 * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
   3 * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
   4 *
   5 * This copyrighted material is made available to anyone wishing to use,
   6 * modify, copy, or redistribute it subject to the terms and conditions
   7 * of the GNU General Public License version 2.
   8 */
   9
  10#ifndef __SUPER_DOT_H__
  11#define __SUPER_DOT_H__
  12
  13#include <linux/fs.h>
  14#include <linux/dcache.h>
  15#include "incore.h"
  16
  17extern void gfs2_lm_unmount(struct gfs2_sbd *sdp);
  18
  19static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
  20{
  21        unsigned int x;
  22        spin_lock(&sdp->sd_jindex_spin);
  23        x = sdp->sd_journals;
  24        spin_unlock(&sdp->sd_jindex_spin);
  25        return x;
  26}
  27
  28extern void gfs2_jindex_free(struct gfs2_sbd *sdp);
  29
  30extern int gfs2_mount_args(struct gfs2_args *args, char *data);
  31
  32extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
  33extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);
  34
  35extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
  36                                     struct gfs2_inode **ipp);
  37
  38extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
  39extern void gfs2_online_uevent(struct gfs2_sbd *sdp);
  40extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
  41extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
  42                               s64 dinodes);
  43extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
  44                                  const void *buf);
  45extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
  46                          struct buffer_head *l_bh);
  47extern int gfs2_statfs_sync(struct super_block *sb, int type);
  48
  49extern int gfs2_freeze_fs(struct gfs2_sbd *sdp);
  50extern void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
  51
  52extern struct file_system_type gfs2_fs_type;
  53extern struct file_system_type gfs2meta_fs_type;
  54extern const struct export_operations gfs2_export_ops;
  55extern const struct super_operations gfs2_super_ops;
  56extern const struct dentry_operations gfs2_dops;
  57extern const struct xattr_handler *gfs2_xattr_handlers[];
  58
  59#endif /* __SUPER_DOT_H__ */
  60
  61
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