projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 0b61f8a4 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 65b3da37 | 2 | /* |
| ad723875 | 3 | * Copyright (c) 2005-2006 Silicon Graphics, Inc. |
| 7b718769 | 4 | * All Rights Reserved. |
| 65b3da37 CH |
5 | */ |
| 6 | #ifndef __XFS_AOPS_H__ | |
| 7 | #define __XFS_AOPS_H__ | |
| 8 | ||
| e292d7bc | 9 | extern struct bio_set xfs_ioend_bioset; |
| 65b3da37 | 10 | |
| a206c817 CH |
11 | /* |
| 12 | * Types of I/O for bmap clustering and I/O completion tracking. | |
| 13 | */ | |
| 14 | enum { | |
| fbcc0256 | 15 | XFS_IO_INVALID, /* initial state */ |
| 0d882a36 AR |
16 | XFS_IO_DELALLOC, /* covers delalloc region */ |
| 17 | XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */ | |
| 18 | XFS_IO_OVERWRITE, /* covers already allocated extent */ | |
| ef473667 | 19 | XFS_IO_COW, /* covers copy-on-write extent */ |
| 5c665e5b | 20 | XFS_IO_HOLE, /* covers region without any block allocation */ |
| a206c817 CH |
21 | }; |
| 22 | ||
| 23 | #define XFS_IO_TYPES \ | |
| fbcc0256 | 24 | { XFS_IO_INVALID, "invalid" }, \ |
| 0d882a36 AR |
25 | { XFS_IO_DELALLOC, "delalloc" }, \ |
| 26 | { XFS_IO_UNWRITTEN, "unwritten" }, \ | |
| ef473667 | 27 | { XFS_IO_OVERWRITE, "overwrite" }, \ |
| 5c665e5b CH |
28 | { XFS_IO_COW, "CoW" }, \ |
| 29 | { XFS_IO_HOLE, "hole" } | |
| a206c817 | 30 | |
| f6d6d4fc | 31 | /* |
| 0e51a8e1 | 32 | * Structure for buffered I/O completions. |
| f6d6d4fc | 33 | */ |
| 0e51a8e1 | 34 | struct xfs_ioend { |
| e10de372 | 35 | struct list_head io_list; /* next ioend in chain */ |
| f6d6d4fc | 36 | unsigned int io_type; /* delalloc / unwritten */ |
| b677c210 | 37 | struct inode *io_inode; /* file being written to */ |
| 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 */ | |
| 281627df | 41 | struct xfs_trans *io_append_trans;/* xact. for size update */ |
| bb18782a | 42 | struct bio *io_bio; /* bio being built */ |
| 0e51a8e1 CH |
43 | struct bio io_inline_bio; /* MUST BE LAST! */ |
| 44 | }; | |
| 65b3da37 | 45 | |
| f5e54d6e | 46 | extern const struct address_space_operations xfs_address_space_operations; |
| 6e2608df | 47 | extern const struct address_space_operations xfs_dax_aops; |
| 6b698ede | 48 | |
| e372843a | 49 | int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size); |
| fa8d972d | 50 | |
| 20cb52eb | 51 | extern void xfs_count_page_state(struct page *, int *, int *); |
| 20a90f58 | 52 | extern struct block_device *xfs_find_bdev_for_inode(struct inode *); |
| 486aff5e | 53 | extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *); |
| 0b1b213f | 54 | |
| ad723875 | 55 | #endif /* __XFS_AOPS_H__ */ |