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

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

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221122203932.231377-21-mathieu.desnoyers@efficios.com
This commit is contained in:
Mathieu Desnoyers 2022-11-22 15:39:22 -05:00 committed by Peter Zijlstra
parent ee31fff091
commit a3798e6ffb
1 changed files with 5 additions and 0 deletions
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5
tools/testing/selftests/rseq/param_test.c
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@ -410,6 +410,11 @@ static int rseq_this_cpu_lock(struct percpu_lock *lock)
int ret; int ret;
cpu = get_current_cpu_id(); 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, ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
&lock->c[cpu].v, &lock->c[cpu].v,
0, 1, cpu); 0, 1, cpu);