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https://github.com/torvalds/linux
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966ceafc7a
Now that we've created the skeleton of a log intent item to track and restart file mapping exchange operations, add the upper level logic to commit intent items and turn them into concrete work recorded in the log. This builds on the existing bmap update intent items that have been around for a while now. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
39 lines
1 KiB
C
39 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2020-2024 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <djwong@kernel.org>
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*/
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#ifndef __XFS_EXCHRANGE_H__
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#define __XFS_EXCHRANGE_H__
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/* Update the mtime/cmtime of file1 and file2 */
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#define __XFS_EXCHANGE_RANGE_UPD_CMTIME1 (1ULL << 63)
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#define __XFS_EXCHANGE_RANGE_UPD_CMTIME2 (1ULL << 62)
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#define XFS_EXCHANGE_RANGE_PRIV_FLAGS (__XFS_EXCHANGE_RANGE_UPD_CMTIME1 | \
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__XFS_EXCHANGE_RANGE_UPD_CMTIME2)
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struct xfs_exchrange {
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struct file *file1;
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struct file *file2;
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loff_t file1_offset;
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loff_t file2_offset;
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u64 length;
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u64 flags; /* XFS_EXCHANGE_RANGE flags */
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};
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long xfs_ioc_exchange_range(struct file *file,
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struct xfs_exchange_range __user *argp);
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struct xfs_exchmaps_req;
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void xfs_exchrange_ilock(struct xfs_trans *tp, struct xfs_inode *ip1,
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struct xfs_inode *ip2);
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void xfs_exchrange_iunlock(struct xfs_inode *ip1, struct xfs_inode *ip2);
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int xfs_exchrange_estimate(struct xfs_exchmaps_req *req);
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#endif /* __XFS_EXCHRANGE_H__ */
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