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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>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2014 Anna Schumaker.
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*
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* NFSv3-specific filesystem definitions and declarations
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*/
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#ifndef __LINUX_FS_NFS_NFS3_FS_H
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#define __LINUX_FS_NFS_NFS3_FS_H
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/*
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* nfs3acl.c
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*/
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#ifdef CONFIG_NFS_V3_ACL
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extern struct posix_acl *nfs3_get_acl(struct inode *inode, int type, bool rcu);
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extern int nfs3_set_acl(struct mnt_idmap *idmap, struct dentry *dentry,
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struct posix_acl *acl, int type);
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extern int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
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struct posix_acl *dfacl);
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extern ssize_t nfs3_listxattr(struct dentry *, char *, size_t);
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extern const struct xattr_handler *nfs3_xattr_handlers[];
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#else
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static inline int nfs3_proc_setacls(struct inode *inode, struct posix_acl *acl,
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struct posix_acl *dfacl)
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{
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return 0;
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}
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#define nfs3_listxattr NULL
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#endif /* CONFIG_NFS_V3_ACL */
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/* nfs3client.c */
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struct nfs_server *nfs3_create_server(struct fs_context *);
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struct nfs_server *nfs3_clone_server(struct nfs_server *, struct nfs_fh *,
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struct nfs_fattr *, rpc_authflavor_t);
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/* nfs3super.c */
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extern struct nfs_subversion nfs_v3;
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#endif /* __LINUX_FS_NFS_NFS3_FS_H */
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