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 typedef enum { 22 /* base extent manipulation calls */ 23 BMAPI_READ = (1 << 0), /* read extents */ 24 BMAPI_WRITE = (1 << 1), /* create extents */ 25 BMAPI_ALLOCATE = (1 << 2), /* delayed allocate to real extents */ 26 /* modifiers */ 27 BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */ 28 BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */ 29 BMAPI_MMAP = (1 << 6), /* allocate for mmap write */ 30 BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */ 31 } bmapi_flags_t; 32 33 #define BMAPI_FLAGS \ 34 { BMAPI_READ, "READ" }, \ 35 { BMAPI_WRITE, "WRITE" }, \ 36 { BMAPI_ALLOCATE, "ALLOCATE" }, \ 37 { BMAPI_IGNSTATE, "IGNSTATE" }, \ 38 { BMAPI_DIRECT, "DIRECT" }, \ 39 { BMAPI_MMAP, "MMAP" }, \ 40 { BMAPI_TRYLOCK, "TRYLOCK" } 41 42 struct xfs_inode; 43 struct xfs_bmbt_irec; 44 45 extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int, 46 struct xfs_bmbt_irec *, int *, int *); 47 extern int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t); 48 49 #endif /* __XFS_IOMAP_H__*/ 50