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authorYicong Yang <yangyicong@hisilicon.com>2021-09-15 14:31:58 +0800
committerPeter Zijlstra <peterz@infradead.org>2021-10-14 13:09:58 +0200
commitf9ec6fea201429b5a3f76319e943989f1a1e25ef (patch)
treeb60a14bf5ef36bd5c8c37fc14c678d3cf6c82d5b
parent7d380f24fe662033fd21a65f678057abd293f76e (diff)
sched/topology: Remove unused numa_distance in cpu_attach_domain()
numa_distance in cpu_attach_domain() is introduced in commit b5b217346de8 ("sched/topology: Warn when NUMA diameter > 2") to warn user when NUMA diameter > 2 as we'll misrepresent the scheduler topology structures at that time. This is fixed by Barry in commit 585b6d2723dc ("sched/topology: fix the issue groups don't span domain->span for NUMA diameter > 2") and numa_distance is unused now. So remove it. Signed-off-by: Yicong Yang <yangyicong@hisilicon.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Barry Song <baohua@kernel.org> Reviewed-by: Valentin Schneider <valentin.schneider@arm.com> Link: https://lore.kernel.org/r/20210915063158.80639-1-yangyicong@hisilicon.com
-rw-r--r--kernel/sched/topology.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index c56faae461d9..5af3edd34d6d 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -688,7 +688,6 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
{
struct rq *rq = cpu_rq(cpu);
struct sched_domain *tmp;
- int numa_distance = 0;
/* Remove the sched domains which do not contribute to scheduling. */
for (tmp = sd; tmp; ) {
@@ -732,9 +731,6 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
}
}
- for (tmp = sd; tmp; tmp = tmp->parent)
- numa_distance += !!(tmp->flags & SD_NUMA);
-
sched_domain_debug(sd, cpu);
rq_attach_root(rq, rd);