The recently concluded Game 7 of the 2014 Carlsen-Anand match went to move 122 before a draw was reached due to insufficient material. Is this the longest game played in a World Chess Championship match? If it is, what was the previous record holder? If it isn't, what games have gone longer?
Extra bonus points if you can also list the longest decisive game from a World Chess Championship match.
Clarification: By World Chess Championship I mean anything played for the FIDE or PCA titles, or the undisputed title if pre-FIDE.