| // SPDX-License-Identifier: GPL-2.0 |
| /* |
| * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
| * All Rights Reserved. |
| */ |
| #ifndef __XFS_IOMAP_H__ |
| #define __XFS_IOMAP_H__ |
| |
| #include <linux/iomap.h> |
| |
| struct xfs_inode; |
| struct xfs_bmbt_irec; |
| |
| int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb, |
| xfs_fileoff_t count_fsb, unsigned int flags, |
| struct xfs_bmbt_irec *imap, u64 *sequence); |
| int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); |
| xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip, |
| xfs_fileoff_t end_fsb); |
| |
| u64 xfs_iomap_inode_sequence(struct xfs_inode *ip, u16 iomap_flags); |
| int xfs_bmbt_to_iomap(struct xfs_inode *ip, struct iomap *iomap, |
| struct xfs_bmbt_irec *imap, unsigned int mapping_flags, |
| u16 iomap_flags, u64 sequence_cookie); |
| |
| int xfs_zero_range(struct xfs_inode *ip, loff_t pos, loff_t len, |
| bool *did_zero); |
| int xfs_truncate_page(struct xfs_inode *ip, loff_t pos, bool *did_zero); |
| |
| static inline xfs_filblks_t |
| xfs_aligned_fsb_count( |
| xfs_fileoff_t offset_fsb, |
| xfs_filblks_t count_fsb, |
| xfs_extlen_t extsz) |
| { |
| if (extsz) { |
| xfs_extlen_t align; |
| |
| div_u64_rem(offset_fsb, extsz, &align); |
| if (align) |
| count_fsb += align; |
| div_u64_rem(count_fsb, extsz, &align); |
| if (align) |
| count_fsb += extsz - align; |
| } |
| |
| return count_fsb; |
| } |
| |
| extern const struct iomap_ops xfs_buffered_write_iomap_ops; |
| extern const struct iomap_ops xfs_direct_write_iomap_ops; |
| extern const struct iomap_ops xfs_read_iomap_ops; |
| extern const struct iomap_ops xfs_seek_iomap_ops; |
| extern const struct iomap_ops xfs_xattr_iomap_ops; |
| extern const struct iomap_ops xfs_dax_write_iomap_ops; |
| |
| #endif /* __XFS_IOMAP_H__*/ |
