xfs_inode_util.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 5 */
 6#ifndef	__XFS_INODE_UTIL_H__
 7#define	__XFS_INODE_UTIL_H__
 8
 9struct xfs_icluster;
10
11uint16_t	xfs_flags2diflags(struct xfs_inode *ip, unsigned int xflags);
12uint64_t	xfs_flags2diflags2(struct xfs_inode *ip, unsigned int xflags);
13uint32_t	xfs_dic2xflags(struct xfs_inode *ip);
14uint32_t	xfs_ip2xflags(struct xfs_inode *ip);
15
16prid_t		xfs_get_initial_prid(struct xfs_inode *dp);
17
18/*
19 * File creation context.
20 *
21 * Due to our only partial reliance on the VFS to propagate uid and gid values
22 * according to accepted Unix behaviors, callers must initialize idmap to the
23 * correct idmapping structure to get the correct inheritance behaviors when
24 * XFS_MOUNT_GRPID is set.
25 *
26 * To create files detached from the directory tree (e.g. quota inodes), set
27 * idmap to NULL.  To create a tree root, set pip to NULL.
28 */
29struct xfs_icreate_args {
30	struct mnt_idmap	*idmap;
31	struct xfs_inode	*pip;	/* parent inode or null */
32	dev_t			rdev;
33	umode_t			mode;
34
35#define XFS_ICREATE_TMPFILE	(1U << 0)  /* create an unlinked file */
36#define XFS_ICREATE_INIT_XATTRS	(1U << 1)  /* will set xattrs immediately */
37#define XFS_ICREATE_UNLINKABLE	(1U << 2)  /* cannot link into dir tree */
38	uint16_t		flags;
39};
40
41/*
42 * Flags for xfs_trans_ichgtime().
43 */
44#define	XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
45#define	XFS_ICHGTIME_CHG	0x2	/* inode field change timestamp */
46#define	XFS_ICHGTIME_CREATE	0x4	/* inode create timestamp */
47#define	XFS_ICHGTIME_ACCESS	0x8	/* last access timestamp */
48void xfs_trans_ichgtime(struct xfs_trans *tp, struct xfs_inode *ip, int flags);
49
50void xfs_inode_init(struct xfs_trans *tp, const struct xfs_icreate_args *args,
51		struct xfs_inode *ip);
52
53int xfs_inode_uninit(struct xfs_trans *tp, struct xfs_perag *pag,
54		struct xfs_inode *ip, struct xfs_icluster *xic);
55
56int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
57int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
58		struct xfs_inode *ip);
59int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
60void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
61
62#endif /* __XFS_INODE_UTIL_H__ */