1 // SPDX-License-Identifier: GPL-2.0 2 /* 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 11 struct xfs_inode; 12 struct xfs_bmbt_irec; 13 14 int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb, 15 xfs_fileoff_t count_fsb, struct xfs_bmbt_irec *imap); 16 int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); 17 xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip, 18 xfs_fileoff_t end_fsb); 19 20 int xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, 21 struct xfs_bmbt_irec *, u16); 22 23 static inline xfs_filblks_t 24 xfs_aligned_fsb_count( 25 xfs_fileoff_t offset_fsb, 26 xfs_filblks_t count_fsb, 27 xfs_extlen_t extsz) 28 { 29 if (extsz) { 30 xfs_extlen_t align; 31 32 div_u64_rem(offset_fsb, extsz, &align); 33 if (align) 34 count_fsb += align; 35 div_u64_rem(count_fsb, extsz, &align); 36 if (align) 37 count_fsb += extsz - align; 38 } 39 40 return count_fsb; 41 } 42 43 extern const struct iomap_ops xfs_buffered_write_iomap_ops; 44 extern const struct iomap_ops xfs_direct_write_iomap_ops; 45 extern const struct iomap_ops xfs_read_iomap_ops; 46 extern const struct iomap_ops xfs_seek_iomap_ops; 47 extern const struct iomap_ops xfs_xattr_iomap_ops; 48 49 #endif /* __XFS_IOMAP_H__*/ 50