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3993baeb DW |
1 | /* |
2 | * Copyright (C) 2016 Oracle. All Rights Reserved. | |
3 | * | |
4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version 2 | |
9 | * of the License, or (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it would be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write the Free Software Foundation, | |
18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. | |
19 | */ | |
20 | #ifndef __XFS_REFLINK_H | |
21 | #define __XFS_REFLINK_H 1 | |
22 | ||
2a06705c DW |
23 | extern int xfs_reflink_find_shared(struct xfs_mount *mp, xfs_agnumber_t agno, |
24 | xfs_agblock_t agbno, xfs_extlen_t aglen, xfs_agblock_t *fbno, | |
25 | xfs_extlen_t *flen, bool find_maximal); | |
26 | extern int xfs_reflink_trim_around_shared(struct xfs_inode *ip, | |
27 | struct xfs_bmbt_irec *irec, bool *shared, bool *trimmed); | |
28 | ||
3ba020be CH |
29 | extern int xfs_reflink_reserve_cow(struct xfs_inode *ip, |
30 | struct xfs_bmbt_irec *imap, bool *shared); | |
0613f16c DW |
31 | extern int xfs_reflink_allocate_cow_range(struct xfs_inode *ip, |
32 | xfs_off_t offset, xfs_off_t count); | |
ef473667 | 33 | extern bool xfs_reflink_find_cow_mapping(struct xfs_inode *ip, xfs_off_t offset, |
092d5d9d | 34 | struct xfs_bmbt_irec *imap); |
86f12ab0 | 35 | extern void xfs_reflink_trim_irec_to_next_cow(struct xfs_inode *ip, |
ef473667 | 36 | xfs_fileoff_t offset_fsb, struct xfs_bmbt_irec *imap); |
2a06705c | 37 | |
43caeb18 DW |
38 | extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip, |
39 | struct xfs_trans **tpp, xfs_fileoff_t offset_fsb, | |
40 | xfs_fileoff_t end_fsb); | |
41 | extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset, | |
42 | xfs_off_t count); | |
43 | extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset, | |
44 | xfs_off_t count); | |
174edb0e | 45 | extern int xfs_reflink_recover_cow(struct xfs_mount *mp); |
5faaf4fa CH |
46 | extern int xfs_reflink_remap_range(struct file *file_in, loff_t pos_in, |
47 | struct file *file_out, loff_t pos_out, u64 len, bool is_dedupe); | |
98cc2db5 DW |
48 | extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, |
49 | struct xfs_trans **tpp); | |
50 | extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, | |
51 | xfs_off_t len); | |
43caeb18 | 52 | |
3993baeb | 53 | #endif /* __XFS_REFLINK_H */ |