lkml.org 
[lkml]   [2022]   [May]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 20/22] sched/topology: replace cpumask_weight() with cpumask_weight_eq() where appropriate
Date
Replace cpumask_weight() with cpumask_weight_eq(..., 1) because it
may return earlier.

CC: Ben Segall <bsegall@google.com>
CC: Daniel Bristot de Oliveira <bristot@redhat.com>
CC: Dietmar Eggemann <dietmar.eggemann@arm.com>
CC: Ingo Molnar <mingo@redhat.com>
CC: Juri Lelli <juri.lelli@redhat.com>
CC: Mel Gorman <mgorman@suse.de>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Valentin Schneider <vschneid@redhat.com>
CC: Vincent Guittot <vincent.guittot@linaro.org>
CC: linux-kernel@vger.kernel.org
Signed-off-by: Yury Norov <yury.norov@gmail.com>
---
kernel/sched/topology.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 05b6c2ad90b9..860137913b18 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -168,7 +168,7 @@ static const unsigned int SD_DEGENERATE_GROUPS_MASK =

static int sd_degenerate(struct sched_domain *sd)
{
- if (cpumask_weight(sched_domain_span(sd)) == 1)
+ if (cpumask_weight_eq(sched_domain_span(sd), 1))
return 1;

/* Following flags need at least 2 groups */
@@ -1999,7 +1999,7 @@ void sched_update_numa(int cpu, bool online)
* Scheduler NUMA topology is updated when the first CPU of a
* node is onlined or the last CPU of a node is offlined.
*/
- if (cpumask_weight(cpumask_of_node(node)) != 1)
+ if (!cpumask_weight_eq(cpumask_of_node(node), 1))
return;

sched_reset_numa();
--
2.32.0
\
 
 \ /
  Last update: 2022-05-10 17:59    [W:1.917 / U:1.628 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site