| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright (C) 2016 Oracle. All Rights Reserved. |
| 4 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
| 5 | */ |
| 6 | #ifndef __XFS_REFLINK_H |
| 7 | #define __XFS_REFLINK_H 1 |
| 8 | |
| 9 | extern int xfs_reflink_find_shared(struct xfs_mount *mp, struct xfs_trans *tp, |
| 10 | xfs_agnumber_t agno, xfs_agblock_t agbno, xfs_extlen_t aglen, |
| 11 | xfs_agblock_t *fbno, xfs_extlen_t *flen, bool find_maximal); |
| 12 | extern int xfs_reflink_trim_around_shared(struct xfs_inode *ip, |
| 13 | struct xfs_bmbt_irec *irec, bool *shared, bool *trimmed); |
| 14 | |
| 15 | extern int xfs_reflink_reserve_cow(struct xfs_inode *ip, |
| 16 | struct xfs_bmbt_irec *imap, bool *shared); |
| 17 | extern int xfs_reflink_allocate_cow(struct xfs_inode *ip, |
| 18 | struct xfs_bmbt_irec *imap, bool *shared, uint *lockmode); |
| 19 | extern int xfs_reflink_convert_cow(struct xfs_inode *ip, xfs_off_t offset, |
| 20 | xfs_off_t count); |
| 21 | |
| 22 | extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip, |
| 23 | struct xfs_trans **tpp, xfs_fileoff_t offset_fsb, |
| 24 | xfs_fileoff_t end_fsb, bool cancel_real); |
| 25 | extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset, |
| 26 | xfs_off_t count, bool cancel_real); |
| 27 | extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset, |
| 28 | xfs_off_t count); |
| 29 | extern int xfs_reflink_recover_cow(struct xfs_mount *mp); |
| 30 | extern int xfs_reflink_remap_range(struct file *file_in, loff_t pos_in, |
| 31 | struct file *file_out, loff_t pos_out, u64 len, bool is_dedupe); |
| 32 | extern int xfs_reflink_inode_has_shared_extents(struct xfs_trans *tp, |
| 33 | struct xfs_inode *ip, bool *has_shared); |
| 34 | extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, |
| 35 | struct xfs_trans **tpp); |
| 36 | extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, |
| 37 | xfs_off_t len); |
| 38 | |
| 39 | #endif /* __XFS_REFLINK_H */ |