1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2000-2006 Silicon Graphics, Inc.
4*4882a593Smuzhiyun * All Rights Reserved.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun #ifndef __XFS_BMAP_UTIL_H__
7*4882a593Smuzhiyun #define __XFS_BMAP_UTIL_H__
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun /* Kernel only BMAP related definitions and functions */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun struct xfs_bmbt_irec;
12*4882a593Smuzhiyun struct xfs_extent_free_item;
13*4882a593Smuzhiyun struct xfs_ifork;
14*4882a593Smuzhiyun struct xfs_inode;
15*4882a593Smuzhiyun struct xfs_mount;
16*4882a593Smuzhiyun struct xfs_trans;
17*4882a593Smuzhiyun struct xfs_bmalloca;
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #ifdef CONFIG_XFS_RT
20*4882a593Smuzhiyun int xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
21*4882a593Smuzhiyun #else /* !CONFIG_XFS_RT */
22*4882a593Smuzhiyun /*
23*4882a593Smuzhiyun * Attempts to allocate RT extents when RT is disable indicates corruption and
24*4882a593Smuzhiyun * should trigger a shutdown.
25*4882a593Smuzhiyun */
26*4882a593Smuzhiyun static inline int
xfs_bmap_rtalloc(struct xfs_bmalloca * ap)27*4882a593Smuzhiyun xfs_bmap_rtalloc(struct xfs_bmalloca *ap)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun return -EFSCORRUPTED;
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun #endif /* CONFIG_XFS_RT */
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun int xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
34*4882a593Smuzhiyun xfs_fileoff_t start_fsb, xfs_fileoff_t length);
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun struct kgetbmap {
37*4882a593Smuzhiyun __s64 bmv_offset; /* file offset of segment in blocks */
38*4882a593Smuzhiyun __s64 bmv_block; /* starting block (64-bit daddr_t) */
39*4882a593Smuzhiyun __s64 bmv_length; /* length of segment, blocks */
40*4882a593Smuzhiyun __s32 bmv_oflags; /* output flags */
41*4882a593Smuzhiyun };
42*4882a593Smuzhiyun int xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,
43*4882a593Smuzhiyun struct kgetbmap *out);
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun /* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */
46*4882a593Smuzhiyun int xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp,
47*4882a593Smuzhiyun struct xfs_bmbt_irec *prevp, xfs_extlen_t extsz,
48*4882a593Smuzhiyun int rt, int eof, int delay, int convert,
49*4882a593Smuzhiyun xfs_fileoff_t *offp, xfs_extlen_t *lenp);
50*4882a593Smuzhiyun void xfs_bmap_adjacent(struct xfs_bmalloca *ap);
51*4882a593Smuzhiyun int xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,
52*4882a593Smuzhiyun int whichfork, struct xfs_bmbt_irec *rec,
53*4882a593Smuzhiyun int *is_empty);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun /* preallocation and hole punch interface */
56*4882a593Smuzhiyun int xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
57*4882a593Smuzhiyun xfs_off_t len, int alloc_type);
58*4882a593Smuzhiyun int xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
59*4882a593Smuzhiyun xfs_off_t len);
60*4882a593Smuzhiyun int xfs_collapse_file_space(struct xfs_inode *, xfs_off_t offset,
61*4882a593Smuzhiyun xfs_off_t len);
62*4882a593Smuzhiyun int xfs_insert_file_space(struct xfs_inode *, xfs_off_t offset,
63*4882a593Smuzhiyun xfs_off_t len);
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun /* EOF block manipulation functions */
66*4882a593Smuzhiyun bool xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
67*4882a593Smuzhiyun int xfs_free_eofblocks(struct xfs_inode *ip);
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun int xfs_swap_extents(struct xfs_inode *ip, struct xfs_inode *tip,
70*4882a593Smuzhiyun struct xfs_swapext *sx);
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun xfs_daddr_t xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun xfs_extnum_t xfs_bmap_count_leaves(struct xfs_ifork *ifp, xfs_filblks_t *count);
75*4882a593Smuzhiyun int xfs_bmap_count_blocks(struct xfs_trans *tp, struct xfs_inode *ip,
76*4882a593Smuzhiyun int whichfork, xfs_extnum_t *nextents,
77*4882a593Smuzhiyun xfs_filblks_t *count);
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun int xfs_flush_unmap_range(struct xfs_inode *ip, xfs_off_t offset,
80*4882a593Smuzhiyun xfs_off_t len);
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun #endif /* __XFS_BMAP_UTIL_H__ */
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