xref: /linux/fs/xfs/libxfs/xfs_inode_util.h (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
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 
9 struct xfs_icluster;
10 
11 uint16_t	xfs_flags2diflags(struct xfs_inode *ip, unsigned int xflags);
12 uint64_t	xfs_flags2diflags2(struct xfs_inode *ip, unsigned int xflags);
13 uint32_t	xfs_dic2xflags(struct xfs_inode *ip);
14 uint32_t	xfs_ip2xflags(struct xfs_inode *ip);
15 
16 prid_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  */
29 struct 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 */
48 void xfs_trans_ichgtime(struct xfs_trans *tp, struct xfs_inode *ip, int flags);
49 
50 void xfs_inode_init(struct xfs_trans *tp, const struct xfs_icreate_args *args,
51 		struct xfs_inode *ip);
52 
53 int xfs_inode_uninit(struct xfs_trans *tp, struct xfs_perag *pag,
54 		struct xfs_inode *ip, struct xfs_icluster *xic);
55 
56 int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
57 int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
58 		struct xfs_inode *ip);
59 int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
60 void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
61 
62 #endif /* __XFS_INODE_UTIL_H__ */
63