[PATCH 3/9] lib/group_cpus: relax atomicity requirement in grp_spread_init_one()

From: Yury Norov
Date: Thu Dec 28 2023 - 15:10:26 EST


Because nmsk and irqmsk are stable, extra atomicity is not required.

Signed-off-by: Yury Norov <yury.norov@xxxxxxxxx>
NAKed-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
lib/group_cpus.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/lib/group_cpus.c b/lib/group_cpus.c
index 063ed9ae1b8d..0a8ac7cb1a5d 100644
--- a/lib/group_cpus.c
+++ b/lib/group_cpus.c
@@ -24,8 +24,8 @@ static void grp_spread_init_one(struct cpumask *irqmsk, struct cpumask *nmsk,
if (cpu >= nr_cpu_ids)
return;

- cpumask_clear_cpu(cpu, nmsk);
- cpumask_set_cpu(cpu, irqmsk);
+ __cpumask_clear_cpu(cpu, nmsk);
+ __cpumask_set_cpu(cpu, irqmsk);
cpus_per_grp--;

/* If the cpu has siblings, use them first */
@@ -36,8 +36,8 @@ static void grp_spread_init_one(struct cpumask *irqmsk, struct cpumask *nmsk,
if (cpus_per_grp-- == 0)
return;

- cpumask_clear_cpu(sibl, nmsk);
- cpumask_set_cpu(sibl, irqmsk);
+ __cpumask_clear_cpu(sibl, nmsk);
+ __cpumask_set_cpu(sibl, irqmsk);
}
}
}
--
2.40.1