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 "incore.h"
  14
  15 void gfs2_tune_init(struct gfs2_tune *gt);
  16
  17 int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent);
  18 int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent);
  19 int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector);
  20
  21 static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
  22 {
  23         unsigned int x;
  24         spin_lock(&sdp->sd_jindex_spin);
  25         x = sdp->sd_journals;
  26         spin_unlock(&sdp->sd_jindex_spin);
  27         return x;
  28 }
  29
  30 int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh);
  31 void gfs2_jindex_free(struct gfs2_sbd *sdp);
  32
  33 struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
  34 void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid);
  35 struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp);
  36 int gfs2_jdesc_check(struct gfs2_jdesc *jd);
  37
  38 int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
  39                               struct gfs2_inode **ipp);
  40
  41 int gfs2_make_fs_rw(struct gfs2_sbd *sdp);
  42 int gfs2_make_fs_ro(struct gfs2_sbd *sdp);
  43
  44 int gfs2_statfs_init(struct gfs2_sbd *sdp);
  45 void gfs2_statfs_change(struct gfs2_sbd *sdp,
  46                         s64 total, s64 free, s64 dinodes);
  47 int gfs2_statfs_sync(struct gfs2_sbd *sdp);
  48 int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
  49 int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
  50
  51 int gfs2_freeze_fs(struct gfs2_sbd *sdp);
  52 void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
  53
  54 #endif /* __SUPER_DOT_H__ */
  55