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Direct writes to zoned RT devices are extremely simple. After taking the block reservation before acquiring the iolock, the iomap direct I/O calls into ->iomap_begin which will return a "fake" iomap for the entire requested range. The actual block allocation is then done from the submit_io handler using code shared with the buffered I/O path. The iomap_dio_ops set the bio_set to the (iomap) ioend one and initialize the embedded ioend, which allows reusing the existing ioend based buffered I/O completion path. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
15 lines
437 B
C
15 lines
437 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2005-2006 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_AOPS_H__
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#define __XFS_AOPS_H__
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extern const struct address_space_operations xfs_address_space_operations;
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extern const struct address_space_operations xfs_dax_aops;
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int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);
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void xfs_end_bio(struct bio *bio);
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#endif /* __XFS_AOPS_H__ */
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