1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
9 extern struct bio_set xfs_ioend_bioset;
12 * Types of I/O for bmap clustering and I/O completion tracking.
14 * This enum is used in string mapping in xfs_trace.h; please keep the
15 * TRACE_DEFINE_ENUMs for it up to date.
18 XFS_IO_HOLE, /* covers region without any block allocation */
19 XFS_IO_DELALLOC, /* covers delalloc region */
20 XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */
21 XFS_IO_OVERWRITE, /* covers already allocated extent */
22 XFS_IO_COW, /* covers copy-on-write extent */
25 #define XFS_IO_TYPES \
26 { XFS_IO_HOLE, "hole" }, \
27 { XFS_IO_DELALLOC, "delalloc" }, \
28 { XFS_IO_UNWRITTEN, "unwritten" }, \
29 { XFS_IO_OVERWRITE, "overwrite" }, \
33 * Structure for buffered I/O completions.
36 struct list_head io_list; /* next ioend in chain */
37 unsigned int io_type; /* delalloc / unwritten */
38 struct inode *io_inode; /* file being written to */
39 size_t io_size; /* size of the extent */
40 xfs_off_t io_offset; /* offset in the file */
41 struct work_struct io_work; /* xfsdatad work queue */
42 struct xfs_trans *io_append_trans;/* xact. for size update */
43 struct bio *io_bio; /* bio being built */
44 struct bio io_inline_bio; /* MUST BE LAST! */
47 extern const struct address_space_operations xfs_address_space_operations;
48 extern const struct address_space_operations xfs_dax_aops;
50 int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);
52 extern void xfs_count_page_state(struct page *, int *, int *);
53 extern struct block_device *xfs_find_bdev_for_inode(struct inode *);
54 extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *);
56 #endif /* __XFS_AOPS_H__ */