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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2000-2006 Silicon Graphics, Inc.
- * All Rights Reserved.
- */
- #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_punch_delalloc_range(struct xfs_inode *ip,
- xfs_fileoff_t start_fsb, xfs_fileoff_t length);
- struct kgetbmap {
- __s64 bmv_offset; /* file offset of segment in blocks */
- __s64 bmv_block; /* starting block (64-bit daddr_t) */
- __s64 bmv_length; /* length of segment, blocks */
- __s32 bmv_oflags; /* output flags */
- };
- int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,
- struct kgetbmap *out);
- /* 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 xfs_free_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);
- xfs_extnum_t xfs_bmap_count_leaves(struct xfs_ifork *ifp, xfs_filblks_t *count);
- int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
- int whichfork, xfs_extnum_t *nextents,
- xfs_filblks_t *count);
- int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t len);
- #endif /* __XFS_BMAP_UTIL_H__ */
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