fs/xfs/libxfs/xfs_sb.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
   4  * All Rights Reserved.
   5  */
   6 #ifndef __XFS_SB_H__
   7 #define __XFS_SB_H__
   8
   9 struct xfs_mount;
  10 struct xfs_sb;
  11 struct xfs_dsb;
  12 struct xfs_trans;
  13 struct xfs_fsop_geom;
  14 struct xfs_perag;
  15
  16 /*
  17  * perag get/put wrappers for ref counting
  18  */
  19 extern struct xfs_perag *xfs_perag_get(struct xfs_mount *, xfs_agnumber_t);
  20 extern struct xfs_perag *xfs_perag_get_tag(struct xfs_mount *, xfs_agnumber_t,
  21                                            int tag);
  22 extern void     xfs_perag_put(struct xfs_perag *pag);
  23 extern int      xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t);
  24
  25 extern void     xfs_log_sb(struct xfs_trans *tp);
  26 extern int      xfs_sync_sb(struct xfs_mount *mp, bool wait);
  27 extern int      xfs_sync_sb_buf(struct xfs_mount *mp);
  28 extern void     xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp);
  29 extern void     xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from);
  30 extern void     xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from);
  31 extern void     xfs_sb_quota_from_disk(struct xfs_sb *sbp);
  32
  33 extern int      xfs_update_secondary_sbs(struct xfs_mount *mp);
  34
  35 #define XFS_FS_GEOM_MAX_STRUCT_VER      (4)
  36 extern int      xfs_fs_geometry(struct xfs_sb *sbp, struct xfs_fsop_geom *geo,
  37                                 int struct_version);
  38 extern int      xfs_sb_read_secondary(struct xfs_mount *mp,
  39                                 struct xfs_trans *tp, xfs_agnumber_t agno,
  40                                 struct xfs_buf **bpp);
  41 extern int      xfs_sb_get_secondary(struct xfs_mount *mp,
  42                                 struct xfs_trans *tp, xfs_agnumber_t agno,
  43                                 struct xfs_buf **bpp);
  44
  45 #endif  /* __XFS_SB_H__ */