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- /*
- * 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;
- #ifdef CONFIG_XFS_RT
- int xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
- #else /* !CONFIG_XFS_RT */
- /*
- * Attempts to allocate RT extents when RT is disable indicates corruption and
- * should trigger a shutdown.
- */
- static inline int
- xfs_bmap_rtalloc(struct xfs_bmalloca *ap)
- {
- return -EFSCORRUPTED;
- }
- #endif /* CONFIG_XFS_RT */
- 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_inode *ip);
- 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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