projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 1da177e4 | 2 | /* |
| 7b718769 NS |
3 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. | |
| 1da177e4 | 5 | */ |
| 1da177e4 LT |
6 | #ifndef __XFS_IOMAP_H__ |
| 7 | #define __XFS_IOMAP_H__ | |
| 8 | ||
| 68a9f5e7 CH |
9 | #include <linux/iomap.h> |
| 10 | ||
| 1da177e4 LT |
11 | struct xfs_inode; |
| 12 | struct xfs_bmbt_irec; | |
| 13 | ||
| e696663a CH |
14 | int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb, |
| 15 | xfs_fileoff_t count_fsb, struct xfs_bmbt_irec *imap); | |
| ee70daab | 16 | int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| e696663a CH |
17 | xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip, |
| 18 | xfs_fileoff_t end_fsb); | |
| 1da177e4 | 19 | |
| 16be1433 | 20 | int xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, |
| 2492a606 | 21 | struct xfs_bmbt_irec *, u16); |
| 3b3dce05 | 22 | |
| f13eb205 CH |
23 | static inline xfs_filblks_t |
| 24 | xfs_aligned_fsb_count( | |
| 25 | xfs_fileoff_t offset_fsb, | |
| 26 | xfs_filblks_t count_fsb, | |
| 27 | xfs_extlen_t extsz) | |
| 28 | { | |
| 29 | if (extsz) { | |
| 30 | xfs_extlen_t align; | |
| 31 | ||
| 0703a8e1 | 32 | div_u64_rem(offset_fsb, extsz, &align); |
| f13eb205 CH |
33 | if (align) |
| 34 | count_fsb += align; | |
| 0703a8e1 | 35 | div_u64_rem(count_fsb, extsz, &align); |
| f13eb205 CH |
36 | if (align) |
| 37 | count_fsb += extsz - align; | |
| 38 | } | |
| 39 | ||
| 40 | return count_fsb; | |
| 41 | } | |
| 42 | ||
| f150b423 CH |
43 | extern const struct iomap_ops xfs_buffered_write_iomap_ops; |
| 44 | extern const struct iomap_ops xfs_direct_write_iomap_ops; | |
| 690c2a38 | 45 | extern const struct iomap_ops xfs_read_iomap_ops; |
| 60271ab7 | 46 | extern const struct iomap_ops xfs_seek_iomap_ops; |
| 8ff6daa1 | 47 | extern const struct iomap_ops xfs_xattr_iomap_ops; |
| 68a9f5e7 | 48 | |
| 1da177e4 | 49 | #endif /* __XFS_IOMAP_H__*/ |