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-rw-r--r--arch/x86/kernel/paravirt.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index dcba6c567a2..c6520a4e85d 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -273,6 +273,7 @@ void arch_flush_lazy_mmu_mode(void)
preempt_disable();
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_MMU) {
+ WARN_ON(preempt_count() == 1);
arch_leave_lazy_mmu_mode();
arch_enter_lazy_mmu_mode();
}
@@ -285,6 +286,7 @@ void arch_flush_lazy_cpu_mode(void)
preempt_disable();
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_CPU) {
+ WARN_ON(preempt_count() == 1);
arch_leave_lazy_cpu_mode();
arch_enter_lazy_cpu_mode();
}