projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 65b3da37 | 1 | /* |
| ad723875 | 2 | * Copyright (c) 2005-2006 Silicon Graphics, Inc. |
| 7b718769 | 3 | * All Rights Reserved. |
| 65b3da37 | 4 | * |
| 7b718769 NS |
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 | |
| 65b3da37 CH |
7 | * published by the Free Software Foundation. |
| 8 | * | |
| 7b718769 NS |
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 | * |
| 7b718769 NS |
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 | ||
| 0e51a8e1 | 21 | extern struct bio_set *xfs_ioend_bioset; |
| 65b3da37 | 22 | |
| a206c817 CH |
23 | /* |
| 24 | * Types of I/O for bmap clustering and I/O completion tracking. | |
| 25 | */ | |
| 26 | enum { | |
| fbcc0256 | 27 | XFS_IO_INVALID, /* initial state */ |
| 0d882a36 AR |
28 | XFS_IO_DELALLOC, /* covers delalloc region */ |
| 29 | XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */ | |
| 30 | XFS_IO_OVERWRITE, /* covers already allocated extent */ | |
| ef473667 | 31 | XFS_IO_COW, /* covers copy-on-write extent */ |
| a206c817 CH |
32 | }; |
| 33 | ||
| 34 | #define XFS_IO_TYPES \ | |
| fbcc0256 | 35 | { XFS_IO_INVALID, "invalid" }, \ |
| 0d882a36 AR |
36 | { XFS_IO_DELALLOC, "delalloc" }, \ |
| 37 | { XFS_IO_UNWRITTEN, "unwritten" }, \ | |
| ef473667 DW |
38 | { XFS_IO_OVERWRITE, "overwrite" }, \ |
| 39 | { XFS_IO_COW, "CoW" } | |
| a206c817 | 40 | |
| f6d6d4fc | 41 | /* |
| 0e51a8e1 | 42 | * Structure for buffered I/O completions. |
| f6d6d4fc | 43 | */ |
| 0e51a8e1 | 44 | struct xfs_ioend { |
| e10de372 | 45 | struct list_head io_list; /* next ioend in chain */ |
| f6d6d4fc | 46 | unsigned int io_type; /* delalloc / unwritten */ |
| b677c210 | 47 | struct inode *io_inode; /* file being written to */ |
| 65b3da37 CH |
48 | size_t io_size; /* size of the extent */ |
| 49 | xfs_off_t io_offset; /* offset in the file */ | |
| 50 | struct work_struct io_work; /* xfsdatad work queue */ | |
| 281627df | 51 | struct xfs_trans *io_append_trans;/* xact. for size update */ |
| bb18782a | 52 | struct bio *io_bio; /* bio being built */ |
| 0e51a8e1 CH |
53 | struct bio io_inline_bio; /* MUST BE LAST! */ |
| 54 | }; | |
| 65b3da37 | 55 | |
| f5e54d6e | 56 | extern const struct address_space_operations xfs_address_space_operations; |
| 6b698ede | 57 | |
| e372843a | 58 | int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size); |
| fa8d972d | 59 | |
| 20cb52eb | 60 | extern void xfs_count_page_state(struct page *, int *, int *); |
| 20a90f58 | 61 | extern struct block_device *xfs_find_bdev_for_inode(struct inode *); |
| 0b1b213f | 62 | |
| ad723875 | 63 | #endif /* __XFS_AOPS_H__ */ |