ceph: normalize 'delta' parameter usage in check_quota_exceeded

Function check_quota_exceeded() uses delta parameter only for the
QUOTA_CHECK_MAX_BYTES_OP operation. Using this parameter also for
MAX_FILES will makes the code cleaner and will be required to support
cross-quota-tree renames.

Signed-off-by: Luis Henriques <[e-mail]>
Reviewed-by: Jeff Layton <[e-mail]>
Signed-off-by: Ilya Dryomov <[e-mail]>

fs/ceph/quota.c

···
 		spin_unlock(&ci->i_ceph_lock);
 		switch (op) {
 		case QUOTA_CHECK_MAX_FILES_OP:
-			exceeded = (max && (rvalue >= max));
-			break;
 		case QUOTA_CHECK_MAX_BYTES_OP:
 			exceeded = (max && (rvalue + delta > max));
 			break;
···
 
 	WARN_ON(!S_ISDIR(inode->i_mode));
 
-	return check_quota_exceeded(inode, QUOTA_CHECK_MAX_FILES_OP, 0);
+	return check_quota_exceeded(inode, QUOTA_CHECK_MAX_FILES_OP, 1);
 }
 
 /*