mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-14 07:44:21 +08:00
13e83a4923
Convert to struct mnt_idmap.
Last cycle we merged the necessary infrastructure in
256c8aed2b ("fs: introduce dedicated idmap type for mounts").
This is just the conversion to struct mnt_idmap.
Currently we still pass around the plain namespace that was attached to a
mount. This is in general pretty convenient but it makes it easy to
conflate namespaces that are relevant on the filesystem with namespaces
that are relevent on the mount level. Especially for non-vfs developers
without detailed knowledge in this area this can be a potential source for
bugs.
Once the conversion to struct mnt_idmap is done all helpers down to the
really low-level helpers will take a struct mnt_idmap argument instead of
two namespace arguments. This way it becomes impossible to conflate the two
eliminating the possibility of any bugs. All of the vfs and all filesystems
only operate on struct mnt_idmap.
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
32 lines
856 B
C
32 lines
856 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2001-2005 Silicon Graphics, Inc.
|
|
* All Rights Reserved.
|
|
*/
|
|
#ifndef __XFS_ACL_H__
|
|
#define __XFS_ACL_H__
|
|
|
|
struct inode;
|
|
struct posix_acl;
|
|
|
|
#ifdef CONFIG_XFS_POSIX_ACL
|
|
extern struct posix_acl *xfs_get_acl(struct inode *inode, int type, bool rcu);
|
|
extern int xfs_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
|
|
struct posix_acl *acl, int type);
|
|
extern int __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
|
|
void xfs_forget_acl(struct inode *inode, const char *name);
|
|
#else
|
|
#define xfs_get_acl NULL
|
|
#define xfs_set_acl NULL
|
|
static inline int __xfs_set_acl(struct inode *inode, struct posix_acl *acl,
|
|
int type)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void xfs_forget_acl(struct inode *inode, const char *name)
|
|
{
|
|
}
|
|
#endif /* CONFIG_XFS_POSIX_ACL */
|
|
|
|
#endif /* __XFS_ACL_H__ */
|