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82 lines
2.6 KiB
82 lines
2.6 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2000-2006 Silicon Graphics, Inc. |
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* All Rights Reserved. |
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*/ |
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#ifndef __XFS_BMAP_UTIL_H__ |
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#define __XFS_BMAP_UTIL_H__ |
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/* Kernel only BMAP related definitions and functions */ |
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struct xfs_bmbt_irec; |
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struct xfs_extent_free_item; |
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struct xfs_ifork; |
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struct xfs_inode; |
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struct xfs_mount; |
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struct xfs_trans; |
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struct xfs_bmalloca; |
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#ifdef CONFIG_XFS_RT |
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int xfs_bmap_rtalloc(struct xfs_bmalloca *ap); |
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#else /* !CONFIG_XFS_RT */ |
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/* |
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* Attempts to allocate RT extents when RT is disable indicates corruption and |
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* should trigger a shutdown. |
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*/ |
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static inline int |
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xfs_bmap_rtalloc(struct xfs_bmalloca *ap) |
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{ |
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return -EFSCORRUPTED; |
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} |
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#endif /* CONFIG_XFS_RT */ |
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int xfs_bmap_punch_delalloc_range(struct xfs_inode *ip, |
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xfs_fileoff_t start_fsb, xfs_fileoff_t length); |
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struct kgetbmap { |
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__s64 bmv_offset; /* file offset of segment in blocks */ |
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__s64 bmv_block; /* starting block (64-bit daddr_t) */ |
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__s64 bmv_length; /* length of segment, blocks */ |
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__s32 bmv_oflags; /* output flags */ |
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}; |
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int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv, |
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struct kgetbmap *out); |
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/* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */ |
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int xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp, |
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struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz, |
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int rt, int eof, int delay, int convert, |
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xfs_fileoff_t *offp, xfs_extlen_t *lenp); |
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void xfs_bmap_adjacent(struct xfs_bmalloca *ap); |
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int xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip, |
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int whichfork, struct xfs_bmbt_irec *rec, |
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int *is_empty); |
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/* preallocation and hole punch interface */ |
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int xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset, |
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xfs_off_t len); |
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int xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset, |
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xfs_off_t len); |
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int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset, |
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xfs_off_t len); |
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int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset, |
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xfs_off_t len); |
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/* EOF block manipulation functions */ |
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bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force); |
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int xfs_free_eofblocks(struct xfs_inode *ip); |
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int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip, |
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struct xfs_swapext *sx); |
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xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb); |
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xfs_extnum_t xfs_bmap_count_leaves(struct xfs_ifork *ifp, xfs_filblks_t *count); |
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int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip, |
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int whichfork, xfs_extnum_t *nextents, |
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xfs_filblks_t *count); |
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int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset, |
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xfs_off_t len); |
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#endif /* __XFS_BMAP_UTIL_H__ */
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