[PATCH v3 [resend] 03/18] smp, alpha: kill SMP single function call interrupt

Jiang Liu
2013-12-15T16:40:33Z

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.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Signed-off-by: Jiang Liu <liuj97@gmail.com>
---
arch/alpha/kernel/smp.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 99ac36d..2f24447 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,
};

@@ -506,7 +505,6 @@ setup_profiling_timer(unsigned int multiplier)
return -EINVAL;
}

-\f
static void
send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation)
{
@@ -552,10 +550,6 @@ 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();

@@ -606,7 +600,7 @@ 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