perf tools: Use dedicated non-atomic clear/set bit helpers

Use the dedicated non-atomic helpers for {clear,set}_bit() and their
test variants, i.e. the double-underscore versions.  Depsite being
defined in atomic.h, and despite the kernel versions being atomic in the
kernel, tools' {clear,set}_bit() helpers aren't actually atomic.  Move
to the double-underscore versions so that the versions that are expected
to be atomic (for kernel developers) can be made atomic without
affecting users that don't want atomic operations.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: James Morse <james.morse@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: alexandru elisei <alexandru.elisei@arm.com>
Cc: kvm@vger.kernel.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: kvmarm@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20221119013450.2643007-6-seanjc@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/perf/util/affinity.c b/tools/perf/util/affinity.c
index 4ee96b3c755b..38dc4524b7e8 100644
--- a/tools/perf/util/affinity.c
+++ b/tools/perf/util/affinity.c
@@ -58,14 +58,14 @@ void affinity__set(struct affinity *a, int cpu)
 		return;
 
 	a->changed = true;
-	set_bit(cpu, a->sched_cpus);
+	__set_bit(cpu, a->sched_cpus);
 	/*
 	 * We ignore errors because affinity is just an optimization.
 	 * This could happen for example with isolated CPUs or cpusets.
 	 * In this case the IPIs inside the kernel's perf API still work.
 	 */
 	sched_setaffinity(0, cpu_set_size, (cpu_set_t *)a->sched_cpus);
-	clear_bit(cpu, a->sched_cpus);
+	__clear_bit(cpu, a->sched_cpus);
 }
 
 static void __affinity__cleanup(struct affinity *a)