12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2005-2006 Silicon Graphics, Inc.
- * All Rights Reserved.
- */
- #ifndef __XFS_AOPS_H__
- #define __XFS_AOPS_H__
- extern struct bio_set xfs_ioend_bioset;
- /*
- * Types of I/O for bmap clustering and I/O completion tracking.
- */
- enum {
- XFS_IO_INVALID, /* initial state */
- XFS_IO_DELALLOC, /* covers delalloc region */
- XFS_IO_UNWRITTEN, /* covers allocated but uninitialized data */
- XFS_IO_OVERWRITE, /* covers already allocated extent */
- XFS_IO_COW, /* covers copy-on-write extent */
- XFS_IO_HOLE, /* covers region without any block allocation */
- };
- #define XFS_IO_TYPES \
- { XFS_IO_INVALID, "invalid" }, \
- { XFS_IO_DELALLOC, "delalloc" }, \
- { XFS_IO_UNWRITTEN, "unwritten" }, \
- { XFS_IO_OVERWRITE, "overwrite" }, \
- { XFS_IO_COW, "CoW" }, \
- { XFS_IO_HOLE, "hole" }
- /*
- * Structure for buffered I/O completions.
- */
- struct xfs_ioend {
- struct list_head io_list; /* next ioend in chain */
- unsigned int io_type; /* delalloc / unwritten */
- struct inode *io_inode; /* file being written to */
- size_t io_size; /* size of the extent */
- xfs_off_t io_offset; /* offset in the file */
- struct work_struct io_work; /* xfsdatad work queue */
- struct xfs_trans *io_append_trans;/* xact. for size update */
- struct bio *io_bio; /* bio being built */
- struct bio io_inline_bio; /* MUST BE LAST! */
- };
- extern const struct address_space_operations xfs_address_space_operations;
- extern const struct address_space_operations xfs_dax_aops;
- int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);
- extern void xfs_count_page_state(struct page *, int *, int *);
- extern struct block_device *xfs_find_bdev_for_inode(struct inode *);
- extern struct dax_device *xfs_find_daxdev_for_inode(struct inode *);
- #endif /* __XFS_AOPS_H__ */
|