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Message-ID: <20120322112805.17063.19393.stgit@srivatsabhat.in.ibm.com>
Date: Thu, 22 Mar 2012 16:58:25 +0530
From: "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>
To: rkuo@...eaurora.org, tglx@...utronix.de, linas@...eaurora.org,
mingo@...e.hu, a.p.zijlstra@...llo.nl, dhowells@...hat.com,
yasutake.koichi@...panasonic.com, akpm@...ux-foundation.org,
benh@...nel.crashing.org, jesper.nilsson@...s.com,
cmetcalf@...era.com, linux@....linux.org.uk, jejb@...isc-linux.org,
deller@....de, vapier@...too.org
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
linux-hexagon@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-am33-list@...hat.com, linux-parisc@...r.kernel.org
Subject: [PATCH 1/4] hexagon/CPU hotplug: Add missing call to
notify_cpu_starting()
The scheduler depends on receiving the CPU_STARTING notification, without
which we end up into a lot of trouble. So add the missing call to
notify_cpu_starting() in the bringup code.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@...ux.vnet.ibm.com>
---
arch/hexagon/kernel/smp.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c
index 0123c63..71ad6e9 100644
--- a/arch/hexagon/kernel/smp.c
+++ b/arch/hexagon/kernel/smp.c
@@ -178,7 +178,12 @@ void __cpuinit start_secondary(void)
printk(KERN_INFO "%s cpu %d\n", __func__, current_thread_info()->cpu);
+ notify_cpu_starting(cpu);
+
+ ipi_call_lock();
set_cpu_online(cpu, true);
+ ipi_call_unlock();
+
local_irq_enable();
cpu_idle();
--
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