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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_INODE_UTIL_H__
#define __XFS_INODE_UTIL_H__
struct xfs_icluster;
uint16_t xfs_flags2diflags(struct xfs_inode *ip, unsigned int xflags);
uint64_t xfs_flags2diflags2(struct xfs_inode *ip, unsigned int xflags);
uint32_t xfs_dic2xflags(struct xfs_inode *ip);
prid_t xfs_get_initial_prid(struct xfs_inode *dp);
/*
* Initial ids, link count, device number, and mode of a new inode.
*
* Due to our only partial reliance on the VFS to propagate uid and gid values
* according to accepted Unix behaviors, callers must initialize mnt_userns to
* the appropriate namespace, uid to fsuid_into_mnt(), and gid to
* fsgid_into_mnt() to get the correct inheritance behaviors when
* XFS_MOUNT_GRPID is set. Use the xfs_ialloc_inherit_args() helper.
*
* To override the default ids, use the FORCE flags defined below.
*/
struct xfs_icreate_args {
struct user_namespace *mnt_userns;
struct xfs_inode *pip; /* parent inode or null */
kuid_t uid;
kgid_t gid;
prid_t prid;
xfs_nlink_t nlink;
dev_t rdev;
umode_t mode;
#define XFS_ICREATE_ARGS_FORCE_UID (1 << 0)
#define XFS_ICREATE_ARGS_FORCE_GID (1 << 1)
#define XFS_ICREATE_ARGS_FORCE_MODE (1 << 2)
#define XFS_ICREATE_ARGS_INIT_XATTRS (1 << 3)
uint16_t flags;
};
/*
* Flags for xfs_trans_ichgtime().
*/
#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
#define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
#define XFS_ICHGTIME_CREATE 0x4 /* inode create timestamp */
#define XFS_ICHGTIME_ACCESS 0x8 /* last access timestamp */
void xfs_trans_ichgtime(struct xfs_trans *tp, struct xfs_inode *ip, int flags);
void xfs_inode_init(struct xfs_trans *tp, const struct xfs_icreate_args *args,
struct xfs_inode *ip);
int xfs_dir_ifree(struct xfs_trans *tp, struct xfs_perag *pag,
struct xfs_inode *ip, struct xfs_icluster *xic);
int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
struct xfs_inode *ip);
int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
/* The libxfs client must provide this group of helper functions. */
/* Initialize the incore inode. */
void xfs_setup_inode(struct xfs_inode *ip);
/* Unlinked inode backref cache functions. Optional. */
int xfs_iunlink_init(struct xfs_perag *pag);
void xfs_iunlink_destroy(struct xfs_perag *pag);
xfs_agino_t xfs_iunlink_lookup_backref(struct xfs_perag *pag,
xfs_agino_t agino);
int xfs_iunlink_add_backref(struct xfs_perag *pag, xfs_agino_t prev_agino,
xfs_agino_t this_agino);
int xfs_iunlink_change_backref(struct xfs_perag *pag, xfs_agino_t prev_agino,
xfs_agino_t this_agino);
#endif /* __XFS_INODE_UTIL_H__ */
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