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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (c) 2000-2006 Silicon Graphics, Inc.4 * All Rights Reserved.5 */6#ifndef __XFS_BMAP_UTIL_H__7#define __XFS_BMAP_UTIL_H__8 9/* Kernel only BMAP related definitions and functions */10 11struct xfs_bmbt_irec;12struct xfs_extent_free_item;13struct xfs_ifork;14struct xfs_inode;15struct xfs_mount;16struct xfs_trans;17struct xfs_bmalloca;18 19#ifdef CONFIG_XFS_RT20int xfs_bmap_rtalloc(struct xfs_bmalloca *ap);21#else /* !CONFIG_XFS_RT */22/*23 * Attempts to allocate RT extents when RT is disable indicates corruption and24 * should trigger a shutdown.25 */26static inline int27xfs_bmap_rtalloc(struct xfs_bmalloca *ap)28{29 return -EFSCORRUPTED;30}31#endif /* CONFIG_XFS_RT */32 33void xfs_bmap_punch_delalloc_range(struct xfs_inode *ip, int whichfork,34 xfs_off_t start_byte, xfs_off_t end_byte);35 36struct kgetbmap {37 __s64 bmv_offset; /* file offset of segment in blocks */38 __s64 bmv_block; /* starting block (64-bit daddr_t) */39 __s64 bmv_length; /* length of segment, blocks */40 __s32 bmv_oflags; /* output flags */41};42int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,43 struct kgetbmap *out);44 45/* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */46int xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp,47 struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz,48 int rt, int eof, int delay, int convert,49 xfs_fileoff_t *offp, xfs_extlen_t *lenp);50bool xfs_bmap_adjacent(struct xfs_bmalloca *ap);51int xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,52 int whichfork, struct xfs_bmbt_irec *rec,53 int *is_empty);54 55/* preallocation and hole punch interface */56int xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,57 xfs_off_t len);58int xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,59 xfs_off_t len);60int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset,61 xfs_off_t len);62int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset,63 xfs_off_t len);64 65/* EOF block manipulation functions */66bool xfs_can_free_eofblocks(struct xfs_inode *ip);67int xfs_free_eofblocks(struct xfs_inode *ip);68 69int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,70 struct xfs_swapext *sx);71 72xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);73 74xfs_extnum_t xfs_bmap_count_leaves(struct xfs_ifork *ifp, xfs_filblks_t *count);75int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,76 int whichfork, xfs_extnum_t *nextents,77 xfs_filblks_t *count);78 79int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset,80 xfs_off_t len);81 82#endif /* __XFS_BMAP_UTIL_H__ */83