| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or |
| 6 | * modify it under the terms of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it would be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write the Free Software Foundation, |
| 16 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | #ifndef __XFS_IOMAP_H__ |
| 19 | #define __XFS_IOMAP_H__ |
| 20 | |
| 21 | #include <linux/iomap.h> |
| 22 | |
| 23 | struct xfs_inode; |
| 24 | struct xfs_bmbt_irec; |
| 25 | |
| 26 | int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, |
| 27 | struct xfs_bmbt_irec *, int); |
| 28 | int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t, |
| 29 | struct xfs_bmbt_irec *); |
| 30 | int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| 31 | |
| 32 | void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, |
| 33 | struct xfs_bmbt_irec *); |
| 34 | xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize); |
| 35 | |
| 36 | static inline xfs_filblks_t |
| 37 | xfs_aligned_fsb_count( |
| 38 | xfs_fileoff_t offset_fsb, |
| 39 | xfs_filblks_t count_fsb, |
| 40 | xfs_extlen_t extsz) |
| 41 | { |
| 42 | if (extsz) { |
| 43 | xfs_extlen_t align; |
| 44 | |
| 45 | align = do_mod(offset_fsb, extsz); |
| 46 | if (align) |
| 47 | count_fsb += align; |
| 48 | align = do_mod(count_fsb, extsz); |
| 49 | if (align) |
| 50 | count_fsb += extsz - align; |
| 51 | } |
| 52 | |
| 53 | return count_fsb; |
| 54 | } |
| 55 | |
| 56 | extern const struct iomap_ops xfs_iomap_ops; |
| 57 | extern const struct iomap_ops xfs_xattr_iomap_ops; |
| 58 | |
| 59 | #endif /* __XFS_IOMAP_H__*/ |