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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 12:21:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 12:21:21 -0700 |
| commit | 371fb85457c857eeac1611d3661ee8e637f6548c (patch) | |
| tree | 6ee2278d4746ed03a4b70b690308074fd2dc7fb3 | |
| parent | e563592c3e4296780e5a184a917b8b86e126f0b3 (diff) | |
| parent | 130708331bc6b03a3c3a78599333faddfebbd0f3 (diff) | |
Merge tag 'smp-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug cleanup from Thomas Gleixner:
"A simple cleanup for the CPU hotplug code to avoid per_cpu_ptr()
reevaluation"
* tag 'smp-core-2021-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Simplify access to percpu cpuhp_state
| -rw-r--r-- | kernel/cpu.c | 4 |
1 files 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)); |