KVM: PPC: e500: Eliminate preempt_disable in local_sid_destroy_all
authorScott Wood <scottwood@freescale.com>
Thu, 18 Aug 2011 20:25:16 +0000 (15:25 -0500)
committerAvi Kivity <avi@redhat.com>
Mon, 5 Mar 2012 12:52:23 +0000 (14:52 +0200)
The only place it makes sense to call this function already needs
to have preemption disabled.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/powerpc/kvm/e500_tlb.c

index 22624a7ae82179876a670119ab3dfe118f6086c6..b976d8025e58d2ea840178f32da5162b042b7cf6 100644 (file)
@@ -116,13 +116,11 @@ static inline int local_sid_lookup(struct id *entry)
        return -1;
 }
 
-/* Invalidate all id mappings on local core */
+/* Invalidate all id mappings on local core -- call with preempt disabled */
 static inline void local_sid_destroy_all(void)
 {
-       preempt_disable();
        __get_cpu_var(pcpu_last_used_sid) = 0;
        memset(&__get_cpu_var(pcpu_sids), 0, sizeof(__get_cpu_var(pcpu_sids)));
-       preempt_enable();
 }
 
 static void *kvmppc_e500_id_table_alloc(struct kvmppc_vcpu_e500 *vcpu_e500)