Commit a3798e6f authored by Mathieu Desnoyers's avatar Mathieu Desnoyers Committed by Peter Zijlstra
Browse files

selftests/rseq: parametrized test: Report/abort on negative concurrency ID 



Report and abort when a negative concurrency ID value is observed by the
spinlock test.

Signed-off-by: default avatarMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221122203932.231377-21-mathieu.desnoyers@efficios.com
parent ee31fff0

tools/testing/selftests/rseq/param_test.c

+5 −0
Original line number Diff line number Diff line
@@ -410,6 +410,11 @@ static int rseq_this_cpu_lock(struct percpu_lock *lock) 
		int ret;



		cpu = get_current_cpu_id();

		if (cpu < 0) {

			fprintf(stderr, "pid: %d: tid: %d, cpu: %d: cid: %d\n",

					getpid(), (int) rseq_gettid(), rseq_current_cpu_raw(), cpu);

			abort();

		}

		ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,

					 &lock->c[cpu].v,

					 0, 1, cpu);