mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
2.4 KiB
59 lines
2.4 KiB
// 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_find_shared(struct xfs_mount *mp, struct xfs_trans *tp, |
|
xfs_agnumber_t agno, xfs_agblock_t agbno, xfs_extlen_t aglen, |
|
xfs_agblock_t *fbno, xfs_extlen_t *flen, bool find_maximal); |
|
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 */
|
|
|