59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2003-2005 Silicon Graphics, Inc.
|
||
|
|
* All Rights Reserved.
|
||
|
|
*/
|
||
|
|
#ifndef __XFS_IOMAP_H__
|
||
|
|
#define __XFS_IOMAP_H__
|
||
|
|
|
||
|
|
#include <linux/iomap.h>
|
||
|
|
|
||
|
|
struct xfs_inode;
|
||
|
|
struct xfs_bmbt_irec;
|
||
|
|
|
||
|
|
int xfs_iomap_write_direct(struct xfs_inode *ip, xfs_fileoff_t offset_fsb,
|
||
|
|
xfs_fileoff_t count_fsb, unsigned int flags,
|
||
|
|
struct xfs_bmbt_irec *imap, u64 *sequence);
|
||
|
|
int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);
|
||
|
|
xfs_fileoff_t xfs_iomap_eof_align_last_fsb(struct xfs_inode *ip,
|
||
|
|
xfs_fileoff_t end_fsb);
|
||
|
|
|
||
|
|
u64 xfs_iomap_inode_sequence(struct xfs_inode *ip, u16 iomap_flags);
|
||
|
|
int xfs_bmbt_to_iomap(struct xfs_inode *ip, struct iomap *iomap,
|
||
|
|
struct xfs_bmbt_irec *imap, unsigned int mapping_flags,
|
||
|
|
u16 iomap_flags, u64 sequence_cookie);
|
||
|
|
|
||
|
|
int xfs_zero_range(struct xfs_inode *ip, loff_t pos, loff_t len,
|
||
|
|
bool *did_zero);
|
||
|
|
int xfs_truncate_page(struct xfs_inode *ip, loff_t pos, bool *did_zero);
|
||
|
|
|
||
|
|
static inline xfs_filblks_t
|
||
|
|
xfs_aligned_fsb_count(
|
||
|
|
xfs_fileoff_t offset_fsb,
|
||
|
|
xfs_filblks_t count_fsb,
|
||
|
|
xfs_extlen_t extsz)
|
||
|
|
{
|
||
|
|
if (extsz) {
|
||
|
|
xfs_extlen_t align;
|
||
|
|
|
||
|
|
div_u64_rem(offset_fsb, extsz, &align);
|
||
|
|
if (align)
|
||
|
|
count_fsb += align;
|
||
|
|
div_u64_rem(count_fsb, extsz, &align);
|
||
|
|
if (align)
|
||
|
|
count_fsb += extsz - align;
|
||
|
|
}
|
||
|
|
|
||
|
|
return count_fsb;
|
||
|
|
}
|
||
|
|
|
||
|
|
extern const struct iomap_ops xfs_buffered_write_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_page_mkwrite_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_direct_write_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_read_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_seek_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_xattr_iomap_ops;
|
||
|
|
extern const struct iomap_ops xfs_dax_write_iomap_ops;
|
||
|
|
|
||
|
|
#endif /* __XFS_IOMAP_H__*/
|