fs/xfs/xfs_inode_buf.h

   1 /*
   2  * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #ifndef __XFS_INODE_BUF_H__
  19 #define __XFS_INODE_BUF_H__
  20
  21 struct xfs_inode;
  22 struct xfs_dinode;
  23 struct xfs_icdinode;
  24
  25 /*
  26  * Inode location information.  Stored in the inode and passed to
  27  * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
  28  */
  29 struct xfs_imap {
  30         xfs_daddr_t     im_blkno;       /* starting BB of inode chunk */
  31         ushort          im_len;         /* length in BBs of inode chunk */
  32         ushort          im_boffset;     /* inode offset in block in bytes */
  33 };
  34
  35 int     xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
  36                        struct xfs_imap *, struct xfs_dinode **,
  37                        struct xfs_buf **, uint, uint);
  38 int     xfs_iread(struct xfs_mount *, struct xfs_trans *,
  39                   struct xfs_inode *, uint);
  40 void    xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
  41 void    xfs_dinode_to_disk(struct xfs_dinode *to, struct xfs_icdinode *from);
  42 void    xfs_dinode_from_disk(struct xfs_icdinode *to, struct xfs_dinode *from);
  43
  44 #if defined(DEBUG)
  45 void    xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
  46 #else
  47 #define xfs_inobp_check(mp, bp)
  48 #endif /* DEBUG */
  49
  50 extern const struct xfs_buf_ops xfs_inode_buf_ops;
  51 extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
  52
  53 #endif  /* __XFS_INODE_BUF_H__ */