1 files changed, 12 insertions, 5 deletions

diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index beea2649a240..182135ba1eaf 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -128,16 +128,23 @@ void native_send_call_func_single_ipi(int cpu)
 
 void native_send_call_func_ipi(const struct cpumask *mask)
 {
-        cpumask_t allbutself;
+        cpumask_var_t allbutself;
 
-        allbutself = cpu_online_map;
-        cpu_clear(smp_processor_id(), allbutself);
+        if (!alloc_cpumask_var(&allbutself, GFP_ATOMIC)) {
+                send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
+                return;
+        }
 
-        if (cpus_equal(*mask, allbutself) &&
-            cpus_equal(cpu_online_map, cpu_callout_map))
+        cpumask_copy(allbutself, cpu_online_mask);
+        cpumask_clear_cpu(smp_processor_id(), allbutself);
+
+        if (cpumask_equal(mask, allbutself) &&
+            cpumask_equal(cpu_online_mask, cpu_callout_mask))
                 send_IPI_allbutself(CALL_FUNCTION_VECTOR);
         else
                 send_IPI_mask(mask, CALL_FUNCTION_VECTOR);
+
+        free_cpumask_var(allbutself);
 }
 
 /*