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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2021 Oracle. All Rights Reserved.
* Author: Darrick J. Wong <djwong@kernel.org>
*/
#ifndef __XFS_XCHGRANGE_H__
#define __XFS_XCHGRANGE_H__
struct xfs_swapext_req;
struct xfs_swapext_res;
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(const struct xfs_swapext_req *req,
struct xfs_swapext_res *res);
int xfs_xchg_range_prep(struct file *file1, struct file *file2,
struct file_xchg_range *fxr);
int xfs_xchg_range_grab_log_assist(struct xfs_mount *mp, bool force,
bool *enabled);
void xfs_xchg_range_rele_log_assist(struct xfs_mount *mp);
/* Update ip1's change and mod time. */
#define XFS_XCHG_RANGE_UPD_CMTIME1 (1 << 0)
/* Update ip2's change and mod time. */
#define XFS_XCHG_RANGE_UPD_CMTIME2 (1 << 1)
#define XCHG_RANGE_FLAGS_STRS \
{ 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);
#endif /* __XFS_XCHGRANGE_H__ */
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