| Dave Chinner | 0b61f8a | 2018-06-05 19:42:14 -0700 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
| Nathan Scott | 7b71876 | 2005-11-02 14:58:39 +1100 | [diff] [blame] | 3 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
| 4 | * All Rights Reserved. |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | #ifndef __XFS_IOMAP_H__ |
| 7 | #define __XFS_IOMAP_H__ |
| 8 | |
| Christoph Hellwig | 68a9f5e | 2016-06-21 09:53:44 +1000 | [diff] [blame] | 9 | #include <linux/iomap.h> |
| 10 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | struct xfs_inode; |
| 12 | struct xfs_bmbt_irec; |
| 13 | |
| Jie Liu | 0799a3e | 2013-09-29 18:56:04 +0800 | [diff] [blame] | 14 | int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, |
| Christoph Hellwig | a206c81 | 2010-12-10 08:42:20 +0000 | [diff] [blame] | 15 | struct xfs_bmbt_irec *, int); |
| Darrick J. Wong | 60b4984 | 2016-10-03 09:11:34 -0700 | [diff] [blame] | 16 | int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t, |
| Christoph Hellwig | e666aa3 | 2018-07-17 16:51:52 -0700 | [diff] [blame] | 17 | struct xfs_bmbt_irec *, unsigned int *); |
| Eryu Guan | ee70daa | 2017-09-21 11:26:18 -0700 | [diff] [blame] | 18 | int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 19 | |
| Christoph Hellwig | 3b3dce0 | 2016-06-21 09:52:47 +1000 | [diff] [blame] | 20 | void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, |
| 21 | struct xfs_bmbt_irec *); |
| Darrick J. Wong | f7ca352 | 2016-10-03 09:11:43 -0700 | [diff] [blame] | 22 | xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize); |
| Christoph Hellwig | 3b3dce0 | 2016-06-21 09:52:47 +1000 | [diff] [blame] | 23 | |
| Christoph Hellwig | f13eb20 | 2017-02-06 10:42:26 -0800 | [diff] [blame] | 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 | |
| Dave Chinner | 0703a8e | 2018-06-08 09:54:22 -0700 | [diff] [blame] | 33 | div_u64_rem(offset_fsb, extsz, &align); |
| Christoph Hellwig | f13eb20 | 2017-02-06 10:42:26 -0800 | [diff] [blame] | 34 | if (align) |
| 35 | count_fsb += align; |
| Dave Chinner | 0703a8e | 2018-06-08 09:54:22 -0700 | [diff] [blame] | 36 | div_u64_rem(count_fsb, extsz, &align); |
| Christoph Hellwig | f13eb20 | 2017-02-06 10:42:26 -0800 | [diff] [blame] | 37 | if (align) |
| 38 | count_fsb += extsz - align; |
| 39 | } |
| 40 | |
| 41 | return count_fsb; |
| 42 | } |
| 43 | |
| Christoph Hellwig | 8ff6daa | 2017-01-27 23:20:26 -0800 | [diff] [blame] | 44 | extern const struct iomap_ops xfs_iomap_ops; |
| 45 | extern const struct iomap_ops xfs_xattr_iomap_ops; |
| Christoph Hellwig | 68a9f5e | 2016-06-21 09:53:44 +1000 | [diff] [blame] | 46 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #endif /* __XFS_IOMAP_H__*/ |