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1729f7c675
Similar to commit 91ef18b567 ("ext4: mark inodes without acls in
__ext4_iget()"), the ACL state won't be read when the file owner
performs a lookup, and the RCU fast path for lookups won't work
because the ACL state remains unknown.
If there are no extended attributes, or if the xattr filter
indicates that no ACL xattr is present, call cache_no_acl() directly.
Reviewed-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2017-2018 HUAWEI, Inc.
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* https://www.huawei.com/
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*/
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#ifndef __EROFS_XATTR_H
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#define __EROFS_XATTR_H
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#include "internal.h"
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#include <linux/posix_acl_xattr.h>
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#include <linux/xattr.h>
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#ifdef CONFIG_EROFS_FS_XATTR
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extern const struct xattr_handler * const erofs_xattr_handlers[];
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int erofs_xattr_prefixes_init(struct super_block *sb);
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void erofs_xattr_prefixes_cleanup(struct super_block *sb);
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ssize_t erofs_listxattr(struct dentry *, char *, size_t);
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#else
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static inline int erofs_xattr_prefixes_init(struct super_block *sb) { return 0; }
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static inline void erofs_xattr_prefixes_cleanup(struct super_block *sb) {}
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#define erofs_listxattr (NULL)
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#define erofs_xattr_handlers (NULL)
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#endif /* !CONFIG_EROFS_FS_XATTR */
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#ifdef CONFIG_EROFS_FS_POSIX_ACL
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struct posix_acl *erofs_get_acl(struct inode *inode, int type, bool rcu);
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#else
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#define erofs_get_acl (NULL)
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#endif
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int erofs_xattr_fill_inode_fingerprint(struct erofs_inode_fingerprint *fp,
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struct inode *inode, const char *domain_id);
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bool erofs_inode_has_noacl(struct inode *inode, void *kaddr, unsigned int ofs);
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#endif
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