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65b3da37 | 1 | /* |
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2 | * Copyright (c) 2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
65b3da37 | 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. | |
65b3da37 | 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 | |
65b3da37 CH |
17 | */ |
18 | #ifndef __XFS_AOPS_H__ | |
19 | #define __XFS_AOPS_H__ | |
20 | ||
21 | extern struct workqueue_struct *xfsdatad_workqueue; | |
22 | extern mempool_t *xfs_ioend_pool; | |
23 | ||
24 | typedef void (*xfs_ioend_func_t)(void *); | |
25 | ||
f6d6d4fc CH |
26 | /* |
27 | * xfs_ioend struct manages large extent writes for XFS. | |
28 | * It can manage several multi-page bio's at once. | |
29 | */ | |
65b3da37 | 30 | typedef struct xfs_ioend { |
f6d6d4fc CH |
31 | struct xfs_ioend *io_list; /* next ioend in chain */ |
32 | unsigned int io_type; /* delalloc / unwritten */ | |
7d04a335 | 33 | int io_error; /* I/O error code */ |
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34 | atomic_t io_remaining; /* hold count */ |
35 | struct vnode *io_vnode; /* file being written to */ | |
c1a073bd | 36 | struct buffer_head *io_buffer_head;/* buffer linked list head */ |
f6d6d4fc | 37 | struct buffer_head *io_buffer_tail;/* buffer linked list tail */ |
65b3da37 CH |
38 | size_t io_size; /* size of the extent */ |
39 | xfs_off_t io_offset; /* offset in the file */ | |
40 | struct work_struct io_work; /* xfsdatad work queue */ | |
41 | } xfs_ioend_t; | |
42 | ||
e4c573bb | 43 | extern struct address_space_operations xfs_address_space_operations; |
c2536668 | 44 | extern int xfs_get_blocks(struct inode *, sector_t, struct buffer_head *, int); |
f6d6d4fc | 45 | |
65b3da37 | 46 | #endif /* __XFS_IOPS_H__ */ |