fs/xfs/xfs_dfrag.h

   1 /*
   2  * Copyright (c) 2000,2005 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_DFRAG_H__
  19 #define __XFS_DFRAG_H__
  20
  21 /*
  22  * Structure passed to xfs_swapext
  23  */
  24
  25 typedef struct xfs_swapext
  26 {
  27         __int64_t       sx_version;     /* version */
  28         __int64_t       sx_fdtarget;    /* fd of target file */
  29         __int64_t       sx_fdtmp;       /* fd of tmp file */
  30         xfs_off_t       sx_offset;      /* offset into file */
  31         xfs_off_t       sx_length;      /* leng from offset */
  32         char            sx_pad[16];     /* pad space, unused */
  33         xfs_bstat_t     sx_stat;        /* stat of target b4 copy */
  34 } xfs_swapext_t;
  35
  36 /*
  37  * Version flag
  38  */
  39 #define XFS_SX_VERSION          0
  40
  41 #ifdef __KERNEL__
  42 /*
  43  * Prototypes for visible xfs_dfrag.c routines.
  44  */
  45
  46 /*
  47  * Syscall interface for xfs_swapext
  48  */
  49 int     xfs_swapext(struct xfs_swapext *sx);
  50
  51 int     xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
  52                 struct xfs_swapext *sxp);
  53
  54 #endif  /* __KERNEL__ */
  55
  56 #endif  /* __XFS_DFRAG_H__ */