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INIT_XATTRS is overloaded here -- it's set during the creat process when we think that we're immediately going to set some ACL xattrs to save time. However, it's also used by the parent pointers code to enable the attr fork in preparation to receive ppptr xattrs. This results in xfs_has_parent() branches scattered around the codebase to turn on INIT_XATTRS. Linkable files are created far more commonly than unlinkable temporary files or directory tree roots, so we should centralize this logic in xfs_inode_init. For the three callers that don't want parent pointers (online repiar tempfiles, unlinkable tempfiles, rootdir creation) we provide an UNLINKABLE flag to skip attr fork initialization. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_INODE_UTIL_H__
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#define __XFS_INODE_UTIL_H__
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uint16_t xfs_flags2diflags(struct xfs_inode *ip, unsigned int xflags);
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uint64_t xfs_flags2diflags2(struct xfs_inode *ip, unsigned int xflags);
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uint32_t xfs_dic2xflags(struct xfs_inode *ip);
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uint32_t xfs_ip2xflags(struct xfs_inode *ip);
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prid_t xfs_get_initial_prid(struct xfs_inode *dp);
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/*
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* File creation context.
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*
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* Due to our only partial reliance on the VFS to propagate uid and gid values
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* according to accepted Unix behaviors, callers must initialize idmap to the
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* correct idmapping structure to get the correct inheritance behaviors when
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* XFS_MOUNT_GRPID is set.
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*
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* To create files detached from the directory tree (e.g. quota inodes), set
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* idmap to NULL. To create a tree root, set pip to NULL.
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*/
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struct xfs_icreate_args {
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struct mnt_idmap *idmap;
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struct xfs_inode *pip; /* parent inode or null */
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dev_t rdev;
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umode_t mode;
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#define XFS_ICREATE_TMPFILE (1U << 0) /* create an unlinked file */
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#define XFS_ICREATE_INIT_XATTRS (1U << 1) /* will set xattrs immediately */
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#define XFS_ICREATE_UNLINKABLE (1U << 2) /* cannot link into dir tree */
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uint16_t flags;
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};
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/*
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* Flags for xfs_trans_ichgtime().
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*/
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#define XFS_ICHGTIME_MOD 0x1 /* data fork modification timestamp */
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#define XFS_ICHGTIME_CHG 0x2 /* inode field change timestamp */
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#define XFS_ICHGTIME_CREATE 0x4 /* inode create timestamp */
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#define XFS_ICHGTIME_ACCESS 0x8 /* last access timestamp */
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void xfs_trans_ichgtime(struct xfs_trans *tp, struct xfs_inode *ip, int flags);
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void xfs_inode_init(struct xfs_trans *tp, const struct xfs_icreate_args *args,
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struct xfs_inode *ip);
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int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip);
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int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag,
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struct xfs_inode *ip);
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int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
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void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
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#endif /* __XFS_INODE_UTIL_H__ */
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