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
  17 extern void gfs2_lm_unmount(struct gfs2_sbd *sdp);
  18
  19 static 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
  28 void gfs2_jindex_free(struct gfs2_sbd *sdp);
  29
  30 extern int gfs2_mount_args(struct gfs2_sbd *sdp, struct gfs2_args *args, char *data);
  31
  32 extern struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
  33 extern int gfs2_jdesc_check(struct gfs2_jdesc *jd);
  34
  35 extern int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
  36                                      struct gfs2_inode **ipp);
  37
  38 extern int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
  39
  40 extern int gfs2_statfs_init(struct gfs2_sbd *sdp);
  41 extern void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
  42                                s64 dinodes);
  43 extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc,
  44                                   const void *buf);
  45 extern void update_statfs(struct gfs2_sbd *sdp, struct buffer_head *m_bh,
  46                           struct buffer_head *l_bh);
  47 extern int gfs2_statfs_sync(struct gfs2_sbd *sdp);
  48
  49 extern int gfs2_freeze_fs(struct gfs2_sbd *sdp);
  50 extern void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
  51
  52 extern struct file_system_type gfs2_fs_type;
  53 extern struct file_system_type gfs2meta_fs_type;
  54 extern const struct export_operations gfs2_export_ops;
  55 extern const struct super_operations gfs2_super_ops;
  56 extern const struct dentry_operations gfs2_dops;
  57
  58 #endif /* __SUPER_DOT_H__ */
  59