Commit-ID: 99659a929d653d0c9ce458091870544768add871
Gitweb: http://git.kernel.org/tip/99659a929d653d0c9ce458091870544768add871
Author: Roel Kluin <roel.kluin@xxxxxxxxx>
AuthorDate: Thu, 7 Jan 2010 15:35:42 +0100
Committer: H. Peter Anvin <hpa@xxxxxxxxx>
CommitDate: Thu, 7 Jan 2010 11:50:06 -0800
x86, uv: Remove recursion in uv_heartbeat_enable()
The recursion is not needed and does not improve readability.
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
LKML-Reference: <4B45F13E.3040202@xxxxxxxxx>
Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
---
arch/x86/kernel/apic/x2apic_uv_x.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index af5d103..d199dc3 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -475,7 +475,7 @@ static void uv_heartbeat(unsigned long ignored)
static void __cpuinit uv_heartbeat_enable(int cpu)
{
- if (!uv_cpu_hub_info(cpu)->scir.enabled) {
+ while (!uv_cpu_hub_info(cpu)->scir.enabled) {
struct timer_list *timer = &uv_cpu_hub_info(cpu)->scir.timer;
uv_set_cpu_scir_bits(cpu, SCIR_CPU_HEARTBEAT|SCIR_CPU_ACTIVITY);
@@ -483,11 +483,10 @@ static void __cpuinit uv_heartbeat_enable(int cpu)
timer->expires = jiffies + SCIR_CPU_HB_INTERVAL;
add_timer_on(timer, cpu);
uv_cpu_hub_info(cpu)->scir.enabled = 1;
- }
- /* check boot cpu */
- if (!uv_cpu_hub_info(0)->scir.enabled)
- uv_heartbeat_enable(0);
+ /* also ensure that boot cpu is enabled */
+ cpu = 0;
+ }
}
#ifdef CONFIG_HOTPLUG_CPU
--
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