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 */ 40