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549c729771
Extend some inode methods with an additional user namespace argument. A filesystem that is aware of idmapped mounts will receive the user namespace the mount has been marked with. This can be used for additional permission checking and also to enable filesystems to translate between uids and gids if they need to. We have implemented all relevant helpers in earlier patches. As requested we simply extend the exisiting inode method instead of introducing new ones. This is a little more code churn but it's mostly mechanical and doesnt't leave us with additional inode methods. Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com Cc: Christoph Hellwig <hch@lst.de> Cc: David Howells <dhowells@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: linux-fsdevel@vger.kernel.org Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
29 lines
822 B
C
29 lines
822 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2001-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_ACL_H__
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#define __XFS_ACL_H__
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struct inode;
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struct posix_acl;
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#ifdef CONFIG_XFS_POSIX_ACL
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extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
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extern int xfs_set_acl(struct user_namespace *mnt_userns, struct inode *inode,
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struct posix_acl *acl, int type);
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extern int __xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
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void xfs_forget_acl(struct inode *inode, const char *name);
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#else
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static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
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{
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return NULL;
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}
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# define xfs_set_acl NULL
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static inline void xfs_forget_acl(struct inode *inode, const char *name)
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{
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}
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#endif /* CONFIG_XFS_POSIX_ACL */
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#endif /* __XFS_ACL_H__ */
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