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1da177e4 | 1 | /* |
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2 | * Copyright (c) 2003-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
1da177e4 | 4 | * |
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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 | |
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7 | * published by the Free Software Foundation. |
8 | * | |
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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. | |
1da177e4 | 13 | * |
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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 | |
1da177e4 | 17 | */ |
1da177e4 LT |
18 | #ifndef __XFS_IOMAP_H__ |
19 | #define __XFS_IOMAP_H__ | |
20 | ||
807cbbdb CH |
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 */ | |
1da177e4 | 31 | |
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32 | #define BMAPI_FLAGS \ |
33 | { BMAPI_READ, "READ" }, \ | |
34 | { BMAPI_WRITE, "WRITE" }, \ | |
35 | { BMAPI_ALLOCATE, "ALLOCATE" }, \ | |
36 | { BMAPI_IGNSTATE, "IGNSTATE" }, \ | |
37 | { BMAPI_DIRECT, "DIRECT" }, \ | |
0b1b213f | 38 | { BMAPI_TRYLOCK, "TRYLOCK" } |
1da177e4 | 39 | |
1da177e4 LT |
40 | struct xfs_inode; |
41 | struct xfs_bmbt_irec; | |
42 | ||
541d7d3c | 43 | extern int xfs_iomap(struct xfs_inode *, xfs_off_t, ssize_t, int, |
207d0416 | 44 | struct xfs_bmbt_irec *, int *, int *); |
f403b7f4 | 45 | extern int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t); |
1da177e4 LT |
46 | |
47 | #endif /* __XFS_IOMAP_H__*/ |