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()
117 static int ecryptfs_interpose(struct dentry *lower_dentry,  in ecryptfs_interpose()  argument
120 	struct inode *inode = ecryptfs_get_inode(d_inode(lower_dentry), sb);  in ecryptfs_interpose()
132 	struct dentry *lower_dentry;  in ecryptfs_do_unlink()  local
136 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_unlink()
137 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_do_unlink()
139 		if (d_unhashed(lower_dentry))  in ecryptfs_do_unlink()
142 			rc = vfs_unlink(&nop_mnt_idmap, lower_dir, lower_dentry,  in ecryptfs_do_unlink()
153 	dput(lower_dentry);  in ecryptfs_do_unlink()
177 	struct dentry *lower_dentry;  in ecryptfs_do_create()  local
181 	rc = lock_parent(ecryptfs_dentry, &lower_dentry, &lower_dir);  in ecryptfs_do_create()
184 				lower_dentry, mode, true);  in ecryptfs_do_create()
191 	inode = __ecryptfs_get_inode(d_inode(lower_dentry),  in ecryptfs_do_create()
194 		vfs_unlink(&nop_mnt_idmap, lower_dir, lower_dentry, NULL);  in ecryptfs_do_create()
320 				     struct dentry *lower_dentry)  in ecryptfs_lookup_interpose()  argument
329 		dput(lower_dentry);  in ecryptfs_lookup_interpose()
335 	BUG_ON(!d_count(lower_dentry));  in ecryptfs_lookup_interpose()
339 	dentry_info->lower_path.dentry = lower_dentry;  in ecryptfs_lookup_interpose()
347 	lower_inode = READ_ONCE(lower_dentry->d_inode);  in ecryptfs_lookup_interpose()
388 	struct dentry *lower_dir_dentry, *lower_dentry;  in ecryptfs_lookup()  local
410 	lower_dentry = lookup_one_len_unlocked(name, lower_dir_dentry, len);  in ecryptfs_lookup()
411 	if (IS_ERR(lower_dentry)) {  in ecryptfs_lookup()
414 				PTR_ERR(lower_dentry),  in ecryptfs_lookup()
416 		res = ERR_CAST(lower_dentry);  in ecryptfs_lookup()
418 		res = ecryptfs_lookup_interpose(ecryptfs_dentry, lower_dentry);  in ecryptfs_lookup()
464 	struct dentry *lower_dentry;  in ecryptfs_symlink()  local
470 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_symlink()
481 	rc = vfs_symlink(&nop_mnt_idmap, lower_dir, lower_dentry,  in ecryptfs_symlink()
484 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_symlink()
486 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_symlink()
502 	struct dentry *lower_dentry;  in ecryptfs_mkdir()  local
505 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mkdir()
508 			       lower_dentry, mode);  in ecryptfs_mkdir()
509 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mkdir()
511 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mkdir()
526 	struct dentry *lower_dentry;  in ecryptfs_rmdir()  local
530 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_rmdir()
531 	dget(lower_dentry);	// don't even try to make the lower negative  in ecryptfs_rmdir()
533 		if (d_unhashed(lower_dentry))  in ecryptfs_rmdir()
536 			rc = vfs_rmdir(&nop_mnt_idmap, lower_dir, lower_dentry);  in ecryptfs_rmdir()
543 	dput(lower_dentry);  in ecryptfs_rmdir()
555 	struct dentry *lower_dentry;  in ecryptfs_mknod()  local
558 	rc = lock_parent(dentry, &lower_dentry, &lower_dir);  in ecryptfs_mknod()
561 			       lower_dentry, mode, dev);  in ecryptfs_mknod()
562 	if (rc || d_really_is_negative(lower_dentry))  in ecryptfs_mknod()
564 	rc = ecryptfs_interpose(lower_dentry, dentry, dir->i_sb);  in ecryptfs_mknod()
643 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_readlink_lower()  local
648 	link = vfs_get_link(lower_dentry, &done);  in ecryptfs_readlink_lower()
856 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_truncate()  local
858 		inode_lock(d_inode(lower_dentry));  in ecryptfs_truncate()
859 		rc = notify_change(&nop_mnt_idmap, lower_dentry,  in ecryptfs_truncate()
861 		inode_unlock(d_inode(lower_dentry));  in ecryptfs_truncate()
891 	struct dentry *lower_dentry;  in ecryptfs_setattr()  local
905 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setattr()
967 	inode_lock(d_inode(lower_dentry));  in ecryptfs_setattr()
968 	rc = notify_change(&nop_mnt_idmap, lower_dentry, &lower_ia, NULL);  in ecryptfs_setattr()
969 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_setattr()
1027 	struct dentry *lower_dentry;  in ecryptfs_setxattr()  local
1030 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_setxattr()
1031 	lower_inode = d_inode(lower_dentry);  in ecryptfs_setxattr()
1037 	rc = __vfs_setxattr_locked(&nop_mnt_idmap, lower_dentry, name, value, size, flags, NULL);  in ecryptfs_setxattr()
1046 ecryptfs_getxattr_lower(struct dentry *lower_dentry, struct inode *lower_inode,  in ecryptfs_getxattr_lower()  argument
1056 	rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size);  in ecryptfs_getxattr_lower()
1075 	struct dentry *lower_dentry;  in ecryptfs_listxattr()  local
1077 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_listxattr()
1078 	if (!d_inode(lower_dentry)->i_op->listxattr) {  in ecryptfs_listxattr()
1082 	inode_lock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1083 	rc = d_inode(lower_dentry)->i_op->listxattr(lower_dentry, list, size);  in ecryptfs_listxattr()
1084 	inode_unlock(d_inode(lower_dentry));  in ecryptfs_listxattr()
1093 	struct dentry *lower_dentry;  in ecryptfs_removexattr()  local
1096 	lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_removexattr()
1103 	rc = __vfs_removexattr(&nop_mnt_idmap, lower_dentry, name);  in ecryptfs_removexattr()
1117 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_fileattr_set()  local
1120 	rc = vfs_fileattr_set(&nop_mnt_idmap, lower_dentry, fa);  in ecryptfs_fileattr_set()
1121 	fsstack_copy_attr_all(d_inode(dentry), d_inode(lower_dentry));  in ecryptfs_fileattr_set()
1138 	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);  in ecryptfs_set_acl()  local
1139 	struct inode *lower_inode = d_inode(lower_dentry);  in ecryptfs_set_acl()
1141 	rc = vfs_set_acl(&nop_mnt_idmap, lower_dentry,  in ecryptfs_set_acl()