1 /* 2 * Copyright (c) 2003-2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_IOMAP_H__ 19 #define __XFS_IOMAP_H__ 20 21 #include <linux/iomap.h> 22 23 struct xfs_inode; 24 struct xfs_bmbt_irec; 25 26 int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t, 27 struct xfs_bmbt_irec *, int); 28 int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t, 29 struct xfs_bmbt_irec *); 30 int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool); 31 32 void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *, 33 struct xfs_bmbt_irec *); 34 xfs_extlen_t xfs_eof_alignment(struct xfs_inode *ip, xfs_extlen_t extsize); 35 36 static inline xfs_filblks_t 37 xfs_aligned_fsb_count( 38 xfs_fileoff_t offset_fsb, 39 xfs_filblks_t count_fsb, 40 xfs_extlen_t extsz) 41 { 42 if (extsz) { 43 xfs_extlen_t align; 44 45 align = do_mod(offset_fsb, extsz); 46 if (align) 47 count_fsb += align; 48 align = do_mod(count_fsb, extsz); 49 if (align) 50 count_fsb += extsz - align; 51 } 52 53 return count_fsb; 54 } 55 56 extern const struct iomap_ops xfs_iomap_ops; 57 extern const struct iomap_ops xfs_xattr_iomap_ops; 58 59 #endif /* __XFS_IOMAP_H__*/ 60