LXR linux/fs/gfs2/super.h

   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 struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
  31extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);
  32extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
  33                                     struct gfs2_inode **ipp);
  34
  35extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
  36extern void gfs2_make_fs_ro(struct gfs2_sbd *sdp);
  37extern void gfs2_online_uevent(struct gfs2_sbd *sdp);
  38extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
  39extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
  40                               s64 dinodes);
  41extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
  42                                  const void *buf);
  43extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc,
  44                                   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);
  48extern void gfs2_freeze_func(struct work_struct *work);
  49
  50extern void free_lcl_statfs_inodes(struct gfs2_sbd *sdp);
  51extern struct inode *find_lcl_statfs_inode(struct gfs2_sbd *sdp,
  52                                           unsigned int index);
  53extern void free_sbd(struct gfs2_sbd *sdp);
  54
  55extern struct file_system_type gfs2_fs_type;
  56extern struct file_system_type gfs2meta_fs_type;
  57extern const struct export_operations gfs2_export_ops;
  58extern const struct super_operations gfs2_super_ops;
  59extern const struct dentry_operations gfs2_dops;
  60extern const struct xattr_handler *gfs2_xattr_handlers[];
  61
  62#endif /* __SUPER_DOT_H__ */
  63
  64