[PATCH 04/22] ARM: SMP: remove IRQ-disabling for smp_cross_call()
Russell King - ARM Linux
linux at arm.linux.org.uk
Fri Dec 3 15:20:17 EST 2010
As we've now removed the spinlock and bitmask, we have nothing left
which requires interrupts to be disabled when sending an IPI. All
current IPI-sending implementations use the GIC, which also does not
require interrupts disabled when calling gic_raise_softirq().
Remove the now unnecessary IRQ disable.
Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
arch/arm/kernel/smp.c | 6 ------
1 files changed, 0 insertions(+), 6 deletions(-)
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 78d55c6..4878e51 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -383,16 +383,10 @@ void __init smp_prepare_boot_cpu(void)
static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg)
{
- unsigned long flags;
-
- local_irq_save(flags);
-
/*
* Call the platform specific cross-CPU call function.
*/
smp_cross_call(mask, msg);
-
- local_irq_restore(flags);
}
void arch_send_call_function_ipi_mask(const struct cpumask *mask)
--
1.6.2.5
More information about the linux-arm-kernel
mailing list