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| author | Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> | 2012-05-15 19:02:37 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-16 01:16:57 (GMT) |
| commit | 568b44559d7ca269d367e694c74eb4436e7e3ccf (patch) | |
| tree | 333478faa3142c3210f23224ce77408c16f1d4a2 | |
| parent | ec2e0f9811a2c667d06feecb413c57f74c6b84f4 (diff) | |
| download | linux-568b44559d7ca269d367e694c74eb4436e7e3ccf.tar.xz | |
mn10300/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@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/mn10300/kernel/smp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c index 910dddf..9cd69ad 100644 --- a/arch/mn10300/kernel/smp.c +++ b/arch/mn10300/kernel/smp.c @@ -24,6 +24,7 @@ #include <linux/sched.h> #include <linux/profile.h> #include <linux/smp.h> +#include <linux/cpu.h> #include <asm/tlbflush.h> #include <asm/bitops.h> #include <asm/processor.h> @@ -38,7 +39,6 @@ #include "internal.h" #ifdef CONFIG_HOTPLUG_CPU -#include <linux/cpu.h> #include <asm/cacheflush.h> static unsigned long sleep_mode[NR_CPUS]; @@ -874,10 +874,13 @@ static void __init smp_online(void) cpu = smp_processor_id(); - local_irq_enable(); + notify_cpu_starting(cpu); + ipi_call_lock(); set_cpu_online(cpu, true); - smp_wmb(); + ipi_call_unlock(); + + local_irq_enable(); } /** |