From: Bing Huang <huangbing775@126.com>
To: dietmar.eggemann@arm.com
Cc: rostedt@goodmis.org, brauner@kernel.org, bristot@redhat.com,
bsegall@google.com, juri.lelli@redhat.com,
linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com,
peterz@infradead.org, vincent.guittot@linaro.org
Subject: [PATCH] sched/topology: Covered all cpus of same node in asymmetric node setups
Date: Sun, 30 Jul 2023 06:22:03 +0800 [thread overview]
Message-ID: <20230729222203.5601-1-huangbing775@126.com> (raw)
in asymmetric node setups, if one cpu'sd spans is empty in some depth,
others in same node do
Signed-off-by: Bing Huang <huangbing@kylinos.cn>
---
kernel/sched/topology.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 7cfcfe5d27b9..8c5372ad7694 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1045,8 +1045,10 @@ build_overlap_sched_groups(struct sched_domain *sd, int cpu)
* Domains should always include the CPU they're built on, so
* check that.
*/
- if (!cpumask_test_cpu(i, sched_domain_span(sibling)))
+ if (!cpumask_test_cpu(i, sched_domain_span(sibling))) {
+ cpumask_or(covered, covered, cpumask_of_node(cpu_to_node(i)));
continue;
+ }
/*
* Usually we build sched_group by sibling's child sched_domain
--
2.25.1
next reply other threads:[~2023-07-29 22:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-29 22:22 Bing Huang [this message]
2023-07-31 13:36 ` Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230729222203.5601-1-huangbing775@126.com \
--to=huangbing775@126.com \
--cc=brauner@kernel.org \
--cc=bristot@redhat.com \
--cc=bsegall@google.com \
--cc=dietmar.eggemann@arm.com \
--cc=juri.lelli@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mgorman@suse.de \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=rostedt@goodmis.org \
--cc=vincent.guittot@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®