From: Anna-Maria Gleixner Since commit 1cf4f629d9d2 ("cpu/hotplug: Move online calls to hotplugged cpu") the CPU_ONLINE and CPU_DOWN_PREPARE notifiers are always run on the hot plugged CPU, and as of commit 3b9d6da67e11 ("cpu/hotplug: Fix rollback during error-out in __cpu_disable()") the CPU_DOWN_FAILED notifier also runs on the hot plugged CPU. This patch converts the SMP functional calls into direct calls. smp_function_call_single() executes the function with interrupts disabled. This calling convention is not preserved because there is no reason to do so. Signed-off-by: Anna-Maria Gleixner --- arch/x86/kvm/x86.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5667,10 +5667,10 @@ static int kvmclock_cpu_notifier(struct switch (action) { case CPU_ONLINE: case CPU_DOWN_FAILED: - smp_call_function_single(cpu, tsc_khz_changed, NULL, 1); + tsc_khz_changed(NULL); break; case CPU_DOWN_PREPARE: - smp_call_function_single(cpu, tsc_bad, NULL, 1); + tsc_bad(NULL); break; } return NOTIFY_OK;