28 		       struct dentry **lower_dentry,  in lock_parent()  argument
35 	*lower_dentry = ecryptfs_dentry_to_lower(dentry);  in lock_parent()
38 	return (*lower_dentry)->d_parent == lower_dir_dentry ? 0 : -EINVAL;  in lock_parent()
125 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()  argument
128 	struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb);  in ecryptfs_interpose()
140 	struct dentry *lower_dentry;  in ecryptfs_do_unlink()  local
144 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_unlink()
145 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_do_unlink()
147 		if (d_unhashed(lower_dentry))  in ecryptfs_do_unlink()
150 			rc = vfs_unlink(&nop_mnt_idmap, lower_dir, lower_dentry,  in ecryptfs_do_unlink()
161 	dput(lower_dentry);  in ecryptfs_do_unlink()
185 	struct dentry *lower_dentry;  in ecryptfs_do_create()  local
189 	rc = lock_parent(ecryptfs_dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_create()
192 				lower_dentry, mode, true);  in ecryptfs_do_create()
199 	inode = __ecryptfs_get_inode(d_inode(lower_dentry),  in ecryptfs_do_create()
202 		vfs_unlink(&nop_mnt_idmap, lower_dir, lower_dentry, NULL);  in ecryptfs_do_create()
328 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()  argument
337 		dput(lower_dentry);  in ecryptfs_lookup_interpose()
343 	BUG_ON(!d_count(lower_dentry));  in ecryptfs_lookup_interpose()
347 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
355 	lower_inode = READ_ONCE(lower_dentry->d_inode);  in ecryptfs_lookup_interpose()
396 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()  local
418 	lower_dentry = lookup_one_len_unlocked(name, lower_dir_dentry, len);  in ecryptfs_lookup()
419 	if (IS_ERR(lower_dentry)) {  in ecryptfs_lookup()
422 				PTR_ERR(lower_dentry),  in ecryptfs_lookup()
424 		res = ERR_CAST(lower_dentry);  in ecryptfs_lookup()
426 		res = ecryptfs_lookup_interpose(ecryptfs_dentry, lower_dentry);  in ecryptfs_lookup()
472 	struct dentry *lower_dentry;  in ecryptfs_symlink()  local
478 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_symlink()
489 	rc = vfs_symlink(&nop_mnt_idmap, lower_dir, lower_dentry,  in ecryptfs_symlink()
492 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_symlink()
494 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
510 	struct dentry *lower_dentry;  in ecryptfs_mkdir()  local
513 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mkdir()
516 			       lower_dentry, mode);  in ecryptfs_mkdir()
517 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mkdir()
519 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
534 	struct dentry *lower_dentry;  in ecryptfs_rmdir()  local
538 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_rmdir()
539 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_rmdir()
541 		if (d_unhashed(lower_dentry))  in ecryptfs_rmdir()
544 			rc = vfs_rmdir(&nop_mnt_idmap, lower_dir, lower_dentry);  in ecryptfs_rmdir()
551 	dput(lower_dentry);  in ecryptfs_rmdir()
563 	struct dentry *lower_dentry;  in ecryptfs_mknod()  local
566 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mknod()
569 			       lower_dentry, mode, dev);  in ecryptfs_mknod()
570 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mknod()
572 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
651 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()  local
656 	link = vfs_get_link(lower_dentry, &done);  in ecryptfs_readlink_lower()
864 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()  local
866 		inode_lock(d_inode(lower_dentry));  in ecryptfs_truncate()
867 		rc = notify_change(&nop_mnt_idmap, lower_dentry,  in ecryptfs_truncate()
869 		inode_unlock(d_inode(lower_dentry));  in ecryptfs_truncate()
899 	struct dentry *lower_dentry;  in ecryptfs_setattr()  local
913 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
975 	inode_lock(d_inode(lower_dentry));  in ecryptfs_setattr()
976 	rc = notify_change(&nop_mnt_idmap, lower_dentry, &lower_ia, NULL);  in ecryptfs_setattr()
977 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_setattr()
1043 	struct dentry *lower_dentry;  in ecryptfs_setxattr()  local
1046 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1047 	lower_inode = d_inode(lower_dentry);  in ecryptfs_setxattr()
1053 	rc = __vfs_setxattr_locked(&nop_mnt_idmap, lower_dentry, name, value, size, flags, NULL);  in ecryptfs_setxattr()
1062 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()  argument
1072 	rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size);  in ecryptfs_getxattr_lower()
1091 	struct dentry *lower_dentry;  in ecryptfs_listxattr()  local
1093 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1094 	if (!d_inode(lower_dentry)->i_op->listxattr) {  in ecryptfs_listxattr()
1098 	inode_lock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1099 	rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size);  in ecryptfs_listxattr()
1100 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1109 	struct dentry *lower_dentry;  in ecryptfs_removexattr()  local
1112 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1119 	rc = __vfs_removexattr(&nop_mnt_idmap, lower_dentry, name);  in ecryptfs_removexattr()
1133 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_fileattr_set()  local
1136 	rc = vfs_fileattr_set(&nop_mnt_idmap, lower_dentry, fa);  in ecryptfs_fileattr_set()
1137 	fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));  in ecryptfs_fileattr_set()
1154 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_set_acl()  local
1155 	struct inode *lower_inode = d_inode(lower_dentry);  in ecryptfs_set_acl()
1157 	rc = vfs_set_acl(&nop_mnt_idmap, lower_dentry,  in ecryptfs_set_acl()