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From: Jiang Liu <liuj97@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
	Vineet Gupta <vgupta@synopsys.com>, Arnd Bergmann <arnd@arndb.de>,
	Shaohua Li <shli@kernel.org>
Cc: liuj97@gmail.com, Jiang Liu <jiang.liu@huawei.com>,
	Ingo Molnar <mingo@elte.hu>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Steven Rostedt <rostedt@goodmis.org>,
	Jiri Kosina <trivial@kernel.org>,
	Wang YanQing <udknight@gmail.com>,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: [RFC PATCH v2 03/25] smp, ARC: kill SMP single function call interrupt
Date: Thu, 12 Sep 2013 00:07:07 +0800	[thread overview]
Message-ID: <1378915649-16395-4-git-send-email-liuj97@gmail.com> (raw)
In-Reply-To: <1378915649-16395-1-git-send-email-liuj97@gmail.com>

From: Jiang Liu <jiang.liu@huawei.com>

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@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
---
 arch/arc/kernel/smp.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index bca3052..f6a0373 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -210,7 +210,6 @@ enum ipi_msg_type {
 	IPI_NOP = 0,
 	IPI_RESCHEDULE = 1,
 	IPI_CALL_FUNC,
-	IPI_CALL_FUNC_SINGLE,
 	IPI_CPU_STOP
 };
 
@@ -254,7 +253,7 @@ void smp_send_stop(void)
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-	ipi_send_msg(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+	ipi_send_msg(cpumask_of(cpu), IPI_CALL_FUNC);
 }
 
 void arch_send_call_function_ipi_mask(const struct cpumask *mask)
@@ -286,10 +285,6 @@ static inline void __do_IPI(unsigned long *ops, struct ipi_data *ipi, int cpu)
 			generic_smp_call_function_interrupt();
 			break;
 
-		case IPI_CALL_FUNC_SINGLE:
-			generic_smp_call_function_single_interrupt();
-			break;
-
 		case IPI_CPU_STOP:
 			ipi_cpu_stop(cpu);
 			break;
-- 
1.8.1.2

  parent reply	other threads:[~2013-09-11 16:07 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-09-11 16:07 [RFC PATCH v2 00/25] simplify generic cross CPU function call implementation Jiang Liu
2013-09-11 16:07 ` [PATCH v2 01/25] Revert smp: Fix SMP function call empty cpu mask race Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-14  4:41   ` Wang YanQing
2013-09-14  4:41     ` Wang YanQing
2013-09-14  4:43     ` Wang YanQing
2013-09-16  2:22       ` Chen Gang
2013-09-11 16:07 ` [RFC PATCH v2 02/25] smp, alpha: kill SMP single function call interrupt Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-10-22 10:07   ` Vineet Gupta
2013-10-22 10:18     ` Vineet Gupta
2013-10-22 10:18       ` Vineet Gupta
2013-09-11 16:07 ` Jiang Liu [this message]
2013-09-11 16:07   ` [RFC PATCH v2 03/25] smp, ARC: " Jiang Liu
2013-09-25 11:31   ` Vineet Gupta
2013-09-11 16:07 ` [RFC PATCH v2 04/25] smp, ARM: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-12  9:14   ` Will Deacon
2013-09-11 16:07 ` [RFC PATCH v2 05/25] smp, ARM64: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-12  9:14   ` Will Deacon
2013-09-11 16:07 ` [RFC PATCH v2 06/25] smp, blackfin: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 07/25] smp, hexagon: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 08/25] smp, IA64: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 09/25] smp, m32r: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 10/25] smp, metag: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-12 11:14   ` James Hogan
2013-09-11 16:07 ` [RFC PATCH v2 11/25] smp, mips: kill redundant call of generic_smp_call_function_single_interrupt() Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 12/25] smp, mn10300: kill SMP single function call interrupt Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 13/25] smp, mn10300: enable arch_send_call_function_ipi_mask() Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 14/25] smp, parisc: kill SMP single function call interrupt Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 15/25] smp, ppc: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 20:03   ` Srivatsa S. Bhat
2013-09-11 20:03     ` Srivatsa S. Bhat
2013-09-12 14:04     ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 16/25] smp, s390: prepare for killing generic_smp_call_function_single_interrupt() Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 17/25] smp, sh: kill SMP single function call interrupt Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-12  8:35   ` Paul Mundt
2013-09-11 16:07 ` [RFC PATCH v2 18/25] smp, sparc64: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 19/25] smp, sparc: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 20/25] smp, tile: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:51   ` Chris Metcalf
2013-09-11 16:07 ` [RFC PATCH v2 21/25] " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 22/25] smp, x86: " Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 23/25] smp: cleanup unsued generic_smp_call_function_single_interrupt() Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 24/25] smp: rename call_single_queue as call_function_queue Jiang Liu
2013-09-11 16:07   ` Jiang Liu
2013-09-11 16:07 ` [RFC PATCH v2 25/25] SMP, trivial: remove unused code from smp_boot.h Jiang Liu
2013-09-11 16:07   ` Jiang Liu

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