1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2022 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_XCHGRANGE_H__
#define __XFS_XCHGRANGE_H__
struct xfs_swapext_req;
void xfs_xchg_range_ilock(struct xfs_trans *tp, struct xfs_inode *ip1,
struct xfs_inode *ip2);
void xfs_xchg_range_iunlock(struct xfs_inode *ip1, struct xfs_inode *ip2);
int xfs_xchg_range_estimate(struct xfs_swapext_req *req);
int xfs_xchg_range_grab_log_assist(struct xfs_mount *mp, bool force,
bool *use_logging);
void xfs_xchg_range_rele_log_assist(struct xfs_mount *mp);
/* Caller has permission to use log intent items for the exchange operation. */
#define XFS_XCHG_RANGE_LOGGED (1U << 0)
/* Update ip1's change and mod time. */
#define XFS_XCHG_RANGE_UPD_CMTIME1 (1U << 1)
/* Update ip2's change and mod time. */
#define XFS_XCHG_RANGE_UPD_CMTIME2 (1U << 2)
#define XCHG_RANGE_FLAGS_STRS \
{ XFS_XCHG_RANGE_LOGGED, "LOGGED" }, \
{ XFS_XCHG_RANGE_UPD_CMTIME1, "UPD_CMTIME1" }, \
{ XFS_XCHG_RANGE_UPD_CMTIME2, "UPD_CMTIME2" }
int xfs_xchg_range(struct xfs_inode *ip1, struct xfs_inode *ip2,
const struct file_xchg_range *fxr, unsigned int xchg_flags);
int xfs_xchg_range_prep(struct file *file1, struct file *file2,
struct file_xchg_range *fxr, unsigned int xchg_flags);
#endif /* __XFS_XCHGRANGE_H__ */
|
