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_trim_around_shared(struct xfs_inode *ip, 10 struct xfs_bmbt_irec *irec, bool *shared); 11 int xfs_bmap_trim_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, 12 bool *shared); 13 14 int xfs_reflink_allocate_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, 15 struct xfs_bmbt_irec *cmap, bool *shared, uint *lockmode, 16 bool convert_now); 17 extern int xfs_reflink_convert_cow(struct xfs_inode *ip, xfs_off_t offset, 18 xfs_off_t count); 19 20 extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip, 21 struct xfs_trans **tpp, xfs_fileoff_t offset_fsb, 22 xfs_fileoff_t end_fsb, bool cancel_real); 23 extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset, 24 xfs_off_t count, bool cancel_real); 25 extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset, 26 xfs_off_t count); 27 extern int xfs_reflink_recover_cow(struct xfs_mount *mp); 28 extern loff_t xfs_reflink_remap_range(struct file *file_in, loff_t pos_in, 29 struct file *file_out, loff_t pos_out, loff_t len, 30 unsigned int remap_flags); 31 extern int xfs_reflink_inode_has_shared_extents(struct xfs_trans *tp, 32 struct xfs_inode *ip, bool *has_shared); 33 extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, 34 struct xfs_trans **tpp); 35 extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, 36 xfs_off_t len); 37 extern int xfs_reflink_remap_prep(struct file *file_in, loff_t pos_in, 38 struct file *file_out, loff_t pos_out, loff_t *len, 39 unsigned int remap_flags); 40 extern int xfs_reflink_remap_blocks(struct xfs_inode *src, loff_t pos_in, 41 struct xfs_inode *dest, loff_t pos_out, loff_t remap_len, 42 loff_t *remapped); 43 extern int xfs_reflink_update_dest(struct xfs_inode *dest, xfs_off_t newlen, 44 xfs_extlen_t cowextsize, unsigned int remap_flags); 45 46 #endif /* __XFS_REFLINK_H */ 47