/*
* Copyright (c) 2000-2006 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_BMAP_UTIL_H__
#define __XFS_BMAP_UTIL_H__
/* Kernel only BMAP related definitions and functions */
struct xfs_bmbt_irec;
struct xfs_extent_free_item;
struct xfs_ifork;
struct xfs_inode;
struct xfs_mount;
struct xfs_trans;
struct xfs_bmalloca;
int xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
int xfs_bmap_eof(struct xfs_inode *ip, xfs_fileoff_t endoff,
int whichfork, int *eof);
int xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
xfs_fileoff_t start_fsb, xfs_fileoff_t length);
/* bmap to userspace formatter - copy to user & advance pointer */
typedef int (*xfs_bmap_format_t)(void **, struct getbmapx *, int *);
int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,
xfs_bmap_format_t formatter, void *arg);
/* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */
int xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp,
struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz,
int rt, int eof, int delay, int convert,
xfs_fileoff_t *offp, xfs_extlen_t *lenp);
void xfs_bmap_adjacent(struct xfs_bmalloca *ap);
int xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,
int whichfork, struct xfs_bmbt_irec *rec,
int *is_empty);
/* preallocation and hole punch interface */
int xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
xfs_off_t len, int alloc_type);
int xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
xfs_off_t len);
int xfs_zero_file_space(struct xfs_inode *ip, xfs_off_t offset,
xfs_off_t len);
int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset,
xfs_off_t len);
int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset,
xfs_off_t len);
/* EOF block manipulation functions */
bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
int xfs_free_eofblocks(struct xfs_mount *mp, struct xfs_inode *ip,
bool need_iolock);
int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
struct xfs_swapext *sx);
xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
#endif /* __XFS_BMAP_UTIL_H__ */
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