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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * Copyright (C) 2016 Oracle. All Rights Reserved.
- * Author: Darrick J. Wong <[email protected]>
- */
- #ifndef __XFS_REFLINK_H
- #define __XFS_REFLINK_H 1
- static inline bool xfs_is_always_cow_inode(struct xfs_inode *ip)
- {
- return ip->i_mount->m_always_cow && xfs_has_reflink(ip->i_mount);
- }
- static inline bool xfs_is_cow_inode(struct xfs_inode *ip)
- {
- return xfs_is_reflink_inode(ip) || xfs_is_always_cow_inode(ip);
- }
- extern int xfs_reflink_trim_around_shared(struct xfs_inode *ip,
- struct xfs_bmbt_irec *irec, bool *shared);
- int xfs_bmap_trim_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap,
- bool *shared);
- int xfs_reflink_allocate_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap,
- struct xfs_bmbt_irec *cmap, bool *shared, uint *lockmode,
- bool convert_now);
- extern int xfs_reflink_convert_cow(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t count);
- extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip,
- struct xfs_trans **tpp, xfs_fileoff_t offset_fsb,
- xfs_fileoff_t end_fsb, bool cancel_real);
- extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t count, bool cancel_real);
- extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t count);
- extern int xfs_reflink_recover_cow(struct xfs_mount *mp);
- extern loff_t xfs_reflink_remap_range(struct file *file_in, loff_t pos_in,
- struct file *file_out, loff_t pos_out, loff_t len,
- unsigned int remap_flags);
- extern int xfs_reflink_inode_has_shared_extents(struct xfs_trans *tp,
- struct xfs_inode *ip, bool *has_shared);
- extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip,
- struct xfs_trans **tpp);
- extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset,
- xfs_off_t len);
- extern int xfs_reflink_remap_prep(struct file *file_in, loff_t pos_in,
- struct file *file_out, loff_t pos_out, loff_t *len,
- unsigned int remap_flags);
- extern int xfs_reflink_remap_blocks(struct xfs_inode *src, loff_t pos_in,
- struct xfs_inode *dest, loff_t pos_out, loff_t remap_len,
- loff_t *remapped);
- extern int xfs_reflink_update_dest(struct xfs_inode *dest, xfs_off_t newlen,
- xfs_extlen_t cowextsize, unsigned int remap_flags);
- #endif /* __XFS_REFLINK_H */
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