From: Salah Triki <salah.triki@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: salah.triki@gmail.com
Subject: [PATCH] kvm: preemption must be disabled when calling smp_call_function_many
Date: Sat, 7 Jun 2025 11:39:47 +0100 [thread overview]
Message-ID: <aEQW81I9kO5-eyrg@pc> (raw)
{Disable, Enable} preemption {before, after} calling
smp_call_function_many().
Signed-off-by: Salah Triki <salah.triki@gmail.com>
---
virt/kvm/kvm_main.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index eec82775c5bf..ab9593943846 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -209,7 +209,10 @@ static inline bool kvm_kick_many_cpus(struct cpumask *cpus, bool wait)
if (cpumask_empty(cpus))
return false;
+ preempt_disable();
smp_call_function_many(cpus, ack_kick, NULL, wait);
+ preempt_enable();
+
return true;
}
--
2.43.0
next reply other threads:[~2025-06-07 10:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-07 10:39 Salah Triki [this message]
2025-06-09 3:22 ` [PATCH] kvm: preemption must be disabled when calling smp_call_function_many Mi, Dapeng
2025-06-09 6:39 ` Manali Shukla
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=aEQW81I9kO5-eyrg@pc \
--to=salah.triki@gmail.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
/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