x86/uv: update SCIR driver to use the idle_cpu() function

Impact: cleanup

Change UV heartbeat function to use idle_cpu to determine cpu's
"idleness".  Realign uv_hub definitions.

Signed-of-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c
index 84367d84bb10..85fb7dd48f67 100644
--- a/arch/x86/kernel/genx2apic_uv_x.c
+++ b/arch/x86/kernel/genx2apic_uv_x.c
@@ -370,8 +370,8 @@ static void uv_heartbeat(unsigned long ignored)
         /* flip heartbeat bit */
         bits ^= SCIR_CPU_HEARTBEAT;
 
-        /* are we the idle thread? */
-        if (current->pid == 0)
+        /* is this cpu idle? */
+        if (idle_cpu(raw_smp_processor_id()))
                 bits &= ~SCIR_CPU_ACTIVITY;
         else
                 bits |= SCIR_CPU_ACTIVITY;