0703a8e1c1
do_mod() is a hold-over from when we have different sizes for file offsets and and other internal values for 40 bit XFS filesystems. Hence depending on build flags variables passed to do_mod() could change size. We no longer support those small format filesystems and hence everything is of fixed size theses days, even on 32 bit platforms. As such, we can convert all the do_mod() callers to platform optimised modulus operations as defined by linux/math64.h. Individual conversions depend on the types of variables being used. Signed-Off-By: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2003-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_IOMAP_H__
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#define __XFS_IOMAP_H__
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#include <linux/iomap.h>
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struct xfs_inode;
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struct xfs_bmbt_irec;
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int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
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struct xfs_bmbt_irec *, int);
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int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t,
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struct xfs_bmbt_irec *);
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int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);
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void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,
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struct xfs_bmbt_irec *);
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xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize);
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static inline xfs_filblks_t
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xfs_aligned_fsb_count(
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xfs_fileoff_t offset_fsb,
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xfs_filblks_t count_fsb,
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xfs_extlen_t extsz)
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{
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if (extsz) {
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xfs_extlen_t align;
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div_u64_rem(offset_fsb, extsz, &align);
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if (align)
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count_fsb += align;
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div_u64_rem(count_fsb, extsz, &align);
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if (align)
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count_fsb += extsz - align;
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}
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return count_fsb;
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}
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extern const struct iomap_ops xfs_iomap_ops;
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extern const struct iomap_ops xfs_xattr_iomap_ops;
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#endif /* __XFS_IOMAP_H__*/
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