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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (c) 2003-2005 Silicon Graphics, Inc.4 * All Rights Reserved.5 */6#ifndef __XFS_IOMAP_H__7#define __XFS_IOMAP_H__8 9#include <linux/iomap.h>10 11struct xfs_inode;12struct xfs_bmbt_irec;13 14int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb,15 xfs_fileoff_t count_fsb, unsigned int flags,16 struct xfs_bmbt_irec *imap, u64 *sequence);17int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);18xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip,19 xfs_fileoff_t end_fsb);20 21u64 xfs_iomap_inode_sequence(struct xfs_inode *ip, u16 iomap_flags);22int xfs_bmbt_to_iomap(struct xfs_inode *ip, struct iomap *iomap,23 struct xfs_bmbt_irec *imap, unsigned int mapping_flags,24 u16 iomap_flags, u64 sequence_cookie);25 26int xfs_zero_range(struct xfs_inode *ip, loff_t pos, loff_t len,27 bool *did_zero);28int xfs_truncate_page(struct xfs_inode *ip, loff_t pos, bool *did_zero);29 30static inline xfs_filblks_t31xfs_aligned_fsb_count(32 xfs_fileoff_t offset_fsb,33 xfs_filblks_t count_fsb,34 xfs_extlen_t extsz)35{36 if (extsz) {37 xfs_extlen_t align;38 39 div_u64_rem(offset_fsb, extsz, &align);40 if (align)41 count_fsb += align;42 div_u64_rem(count_fsb, extsz, &align);43 if (align)44 count_fsb += extsz - align;45 }46 47 return count_fsb;48}49 50extern const struct iomap_ops xfs_buffered_write_iomap_ops;51extern const struct iomap_ops xfs_page_mkwrite_iomap_ops;52extern const struct iomap_ops xfs_direct_write_iomap_ops;53extern const struct iomap_ops xfs_read_iomap_ops;54extern const struct iomap_ops xfs_seek_iomap_ops;55extern const struct iomap_ops xfs_xattr_iomap_ops;56extern const struct iomap_ops xfs_dax_write_iomap_ops;57 58#endif /* __XFS_IOMAP_H__*/59