[RFC PATCH v2 02/25] smp, alpha: kill SMP single function call interrupt

From: Jiang Liu
Date: Wed Sep 11 2013 - 12:17:05 EST


From: Jiang Liu <jiang.liu@xxxxxxxxxx>

Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: Jiang Liu <jiang.liu@xxxxxxxxxx>
Cc: Jiang Liu <liuj97@xxxxxxxxx>
---
arch/alpha/kernel/smp.c | 9 +--------
1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 9dbbcb3..71d5c7d 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -63,7 +63,6 @@ static struct {
enum ipi_message_type {
IPI_RESCHEDULE,
IPI_CALL_FUNC,
- IPI_CALL_FUNC_SINGLE,
IPI_CPU_STOP,
};

@@ -498,7 +497,6 @@ smp_cpus_done(unsigned int max_cpus)
((bogosum + 2500) / (5000/HZ)) % 100);
}

-
void
smp_percpu_timer_interrupt(struct pt_regs *regs)
{
@@ -533,7 +531,6 @@ setup_profiling_timer(unsigned int multiplier)
return -EINVAL;
}

-
static void
send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)
{
@@ -579,10 +576,6 @@ handle_ipi(struct pt_regs *regs)
generic_smp_call_function_interrupt();
break;

- case IPI_CALL_FUNC_SINGLE:
- generic_smp_call_function_single_interrupt();
- break;
-
case IPI_CPU_STOP:
halt();

@@ -633,7 +626,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)

void arch_send_call_function_single_ipi(int cpu)
{
- send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+ send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC);
}

static void
--
1.8.1.2

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