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 /* base extent manipulation calls */ 22 #define BMAPI_READ (1 << 0) /* read extents */ 23 #define BMAPI_WRITE (1 << 1) /* create extents */ 24 #define BMAPI_ALLOCATE (1 << 2) /* delayed allocate to real extents */ 25 26 /* modifiers */ 27 #define BMAPI_IGNSTATE (1 << 4) /* ignore unwritten state on read */ 28 #define BMAPI_DIRECT (1 << 5) /* direct instead of buffered write */ 29 #define BMAPI_MMA (1 << 6) /* allocate for mmap write */ 30 #define BMAPI_TRYLOCK (1 << 7) /* non-blocking request */ 31 32 #define BMAPI_FLAGS \ 33 { BMAPI_READ, "READ" }, \ 34 { BMAPI_WRITE, "WRITE" }, \ 35 { BMAPI_ALLOCATE, "ALLOCATE" }, \ 36 { BMAPI_IGNSTATE, "IGNSTATE" }, \ 37 { BMAPI_DIRECT, "DIRECT" }, \ 38 { BMAPI_TRYLOCK, "TRYLOCK" } 39 40 struct xfs_inode; 41 struct xfs_bmbt_irec; 42 43 extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int, 44 struct xfs_bmbt_irec *, int *, int *); 45 extern int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t); 46 47 #endif /* __XFS_IOMAP_H__*/ 48