| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. |
| 5 | */ |
| 6 | #ifndef __XFS_IOMAP_H__ |
| 7 | #define __XFS_IOMAP_H__ |
| 8 | |
| 9 | #include <linux/iomap.h> |
| 10 | |
| 11 | struct xfs_inode; |
| 12 | struct xfs_bmbt_irec; |
| 13 | |
| 14 | int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, |
| 15 | struct xfs_bmbt_irec *, int); |
| 16 | int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t, |
| 17 | struct xfs_bmbt_irec *, unsigned int *); |
| 18 | int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| 19 | |
| 20 | void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, |
| 21 | struct xfs_bmbt_irec *); |
| 22 | xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize); |
| 23 | |
| 24 | static inline xfs_filblks_t |
| 25 | xfs_aligned_fsb_count( |
| 26 | xfs_fileoff_t offset_fsb, |
| 27 | xfs_filblks_t count_fsb, |
| 28 | xfs_extlen_t extsz) |
| 29 | { |
| 30 | if (extsz) { |
| 31 | xfs_extlen_t align; |
| 32 | |
| 33 | div_u64_rem(offset_fsb, extsz, &align); |
| 34 | if (align) |
| 35 | count_fsb += align; |
| 36 | div_u64_rem(count_fsb, extsz, &align); |
| 37 | if (align) |
| 38 | count_fsb += extsz - align; |
| 39 | } |
| 40 | |
| 41 | return count_fsb; |
| 42 | } |
| 43 | |
| 44 | extern const struct iomap_ops xfs_iomap_ops; |
| 45 | extern const struct iomap_ops xfs_xattr_iomap_ops; |
| 46 | |
| 47 | #endif /* __XFS_IOMAP_H__*/ |