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 | 14 | int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb, |
| 952da063 | 15 | xfs_fileoff_t count_fsb, unsigned int flags, |
| 304a68b9 | 16 | struct xfs_bmbt_irec *imap, u64 *sequence); |
| ee70daab | 17 | int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| e696663a CH |
18 | xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip, |
| 19 | xfs_fileoff_t end_fsb); | |
| 1da177e4 | 20 | |
| 304a68b9 | 21 | u64 xfs_iomap_inode_sequence(struct xfs_inode *ip, u16 iomap_flags); |
| 740fd671 CH |
22 | int xfs_bmbt_to_iomap(struct xfs_inode *ip, struct iomap *iomap, |
| 23 | struct xfs_bmbt_irec *imap, unsigned int mapping_flags, | |
| 304a68b9 | 24 | u16 iomap_flags, u64 sequence_cookie); |
| 3b3dce05 | 25 | |
| f1ba5faf SR |
26 | int xfs_zero_range(struct xfs_inode *ip, loff_t pos, loff_t len, |
| 27 | bool *did_zero); | |
| 28 | int xfs_truncate_page(struct xfs_inode *ip, loff_t pos, bool *did_zero); | |
| 29 | ||
| f13eb205 CH |
30 | static inline xfs_filblks_t |
| 31 | xfs_aligned_fsb_count( | |
| 32 | xfs_fileoff_t offset_fsb, | |
| 33 | xfs_filblks_t count_fsb, | |
| 34 | xfs_extlen_t extsz) | |
| 35 | { | |
| 36 | if (extsz) { | |
| 37 | xfs_extlen_t align; | |
| 38 | ||
| 0703a8e1 | 39 | div_u64_rem(offset_fsb, extsz, &align); |
| f13eb205 CH |
40 | if (align) |
| 41 | count_fsb += align; | |
| 0703a8e1 | 42 | div_u64_rem(count_fsb, extsz, &align); |
| f13eb205 CH |
43 | if (align) |
| 44 | count_fsb += extsz - align; | |
| 45 | } | |
| 46 | ||
| 47 | return count_fsb; | |
| 48 | } | |
| 49 | ||
| f150b423 | 50 | extern const struct iomap_ops xfs_buffered_write_iomap_ops; |
| 118e021b | 51 | extern const struct iomap_ops xfs_page_mkwrite_iomap_ops; |
| f150b423 | 52 | extern const struct iomap_ops xfs_direct_write_iomap_ops; |
| 690c2a38 | 53 | extern const struct iomap_ops xfs_read_iomap_ops; |
| 60271ab7 | 54 | extern const struct iomap_ops xfs_seek_iomap_ops; |
| 8ff6daa1 | 55 | extern const struct iomap_ops xfs_xattr_iomap_ops; |
| ea6c49b7 | 56 | extern const struct iomap_ops xfs_dax_write_iomap_ops; |
| 68a9f5e7 | 57 | |
| 1da177e4 | 58 | #endif /* __XFS_IOMAP_H__*/ |