Q2.22

Consider Peterson's algorithm for mutual exclusion between two concurrent processes i and j. The program executed by process is shown below. repeat flag[i] = true; turn = j; while (P) do no-op; Enter critical section, perform actions, then exit critical section Flag[i] = false; Perform other non-critical section actions. Until false; For the program to guarantee mutual exclusion, the predicate P in the while loop should be