1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2017-2018 HUAWEI, Inc. 4 * https://www.huawei.com/ 5 */ 6 #ifndef __EROFS_XATTR_H 7 #define __EROFS_XATTR_H 8 9 #include "internal.h" 10 #include <linux/posix_acl_xattr.h> 11 #include <linux/xattr.h> 12 13 #ifdef CONFIG_EROFS_FS_XATTR 14 extern const struct xattr_handler * const erofs_xattr_handlers[]; 15 16 int erofs_xattr_prefixes_init(struct super_block *sb); 17 void erofs_xattr_prefixes_cleanup(struct super_block *sb); 18 ssize_t erofs_listxattr(struct dentry *, char *, size_t); 19 #else 20 static inline int erofs_xattr_prefixes_init(struct super_block *sb) { return 0; } 21 static inline void erofs_xattr_prefixes_cleanup(struct super_block *sb) {} 22 23 #define erofs_listxattr (NULL) 24 #define erofs_xattr_handlers (NULL) 25 #endif /* !CONFIG_EROFS_FS_XATTR */ 26 27 #ifdef CONFIG_EROFS_FS_POSIX_ACL 28 struct posix_acl *erofs_get_acl(struct inode *inode, int type, bool rcu); 29 #else 30 #define erofs_get_acl (NULL) 31 #endif 32 33 int erofs_xattr_fill_inode_fingerprint(struct erofs_inode_fingerprint *fp, 34 struct inode *inode, const char *domain_id); 35 bool erofs_inode_has_noacl(struct inode *inode, void *kaddr, unsigned int ofs); 36 #endif 37