linux-kernel - [GIT pull] smp/core for v5.14-rc1

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <162497731335.6531.6983356866447421688.tglx@nanos>
Date:   Tue, 29 Jun 2021 14:35:13 -0000
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] smp/core for v5.14-rc1

Linus,

please pull the latest smp/core branch from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git smp-core-2021-06-29

up to:  130708331bc6: cpu/hotplug: Simplify access to percpu cpuhp_state

A simple cleanup for the CPU hotplug code to avoid per_cpu_ptr()
reevaluation.

Thanks,

	tglx

------------------>
Yuan ZhaoXiong (1):
      cpu/hotplug: Simplify access to percpu cpuhp_state


 kernel/cpu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index e538518556f4..2942cb4644c5 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -961,7 +961,7 @@ static int takedown_cpu(unsigned int cpu)
 	int err;
 
 	/* Park the smpboot threads */
-	kthread_park(per_cpu_ptr(&cpuhp_state, cpu)->thread);
+	kthread_park(st->thread);
 
 	/*
 	 * Prevent irq alloc/free while the dying cpu reorganizes the
@@ -977,7 +977,7 @@ static int takedown_cpu(unsigned int cpu)
 		/* CPU refused to die */
 		irq_unlock_sparse();
 		/* Unpark the hotplug thread so we can rollback there */
-		kthread_unpark(per_cpu_ptr(&cpuhp_state, cpu)->thread);
+		kthread_unpark(st->thread);
 		return err;
 	}
 	BUG_ON(cpu_online(cpu));