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From: Jiang Liu <jiang.liu@linux.intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Jiang Liu <jiang.liu@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
	linux-sh@vger.kernel.org
Subject: [Resend Patch v4 08/16] smp, sh: Kill SMP single function call interrupt
Date: Fri, 23 Jan 2015 05:36:47 +0000	[thread overview]
Message-ID: <1421991416-20297-9-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1421991416-20297-1-git-send-email-jiang.liu@linux.intel.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.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/sh/include/asm/smp.h |    1 -
 arch/sh/kernel/smp.c      |    5 +----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h
index 78b0d0f4b24b..93ce87b3a18d 100644
--- a/arch/sh/include/asm/smp.h
+++ b/arch/sh/include/asm/smp.h
@@ -25,7 +25,6 @@ extern int __cpu_logical_map[NR_CPUS];
 enum {
 	SMP_MSG_FUNCTION,
 	SMP_MSG_RESCHEDULE,
-	SMP_MSG_FUNCTION_SINGLE,
 	SMP_MSG_TIMER,
 
 	SMP_MSG_NR,	/* must be last */
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index fc5acfc93c92..fc03baf8b661 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -282,7 +282,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-	mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
+	mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION);
 }
 
 void smp_timer_broadcast(const struct cpumask *mask)
@@ -309,9 +309,6 @@ void smp_message_recv(unsigned int msg)
 	case SMP_MSG_RESCHEDULE:
 		scheduler_ipi();
 		break;
-	case SMP_MSG_FUNCTION_SINGLE:
-		generic_smp_call_function_single_interrupt();
-		break;
 	case SMP_MSG_TIMER:
 		ipi_timer();
 		break;
-- 
1.7.10.4


WARNING: multiple messages have this Message-ID (diff)
From: Jiang Liu <jiang.liu@linux.intel.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Jiang Liu <jiang.liu@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
	linux-kernel@vger.kernel.org, Paul Mundt <lethal@linux-sh.org>,
	linux-sh@vger.kernel.org
Subject: [Resend Patch v4 08/16] smp, sh: Kill SMP single function call interrupt
Date: Fri, 23 Jan 2015 13:36:47 +0800	[thread overview]
Message-ID: <1421991416-20297-9-git-send-email-jiang.liu@linux.intel.com> (raw)
In-Reply-To: <1421991416-20297-1-git-send-email-jiang.liu@linux.intel.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.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
---
 arch/sh/include/asm/smp.h |    1 -
 arch/sh/kernel/smp.c      |    5 +----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h
index 78b0d0f4b24b..93ce87b3a18d 100644
--- a/arch/sh/include/asm/smp.h
+++ b/arch/sh/include/asm/smp.h
@@ -25,7 +25,6 @@ extern int __cpu_logical_map[NR_CPUS];
 enum {
 	SMP_MSG_FUNCTION,
 	SMP_MSG_RESCHEDULE,
-	SMP_MSG_FUNCTION_SINGLE,
 	SMP_MSG_TIMER,
 
 	SMP_MSG_NR,	/* must be last */
diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index fc5acfc93c92..fc03baf8b661 100644
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -282,7 +282,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-	mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION_SINGLE);
+	mp_ops->send_ipi(cpu, SMP_MSG_FUNCTION);
 }
 
 void smp_timer_broadcast(const struct cpumask *mask)
@@ -309,9 +309,6 @@ void smp_message_recv(unsigned int msg)
 	case SMP_MSG_RESCHEDULE:
 		scheduler_ipi();
 		break;
-	case SMP_MSG_FUNCTION_SINGLE:
-		generic_smp_call_function_single_interrupt();
-		break;
 	case SMP_MSG_TIMER:
 		ipi_timer();
 		break;
-- 
1.7.10.4


  parent reply	other threads:[~2015-01-23  5:36 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-23  5:36 [Resend Patch v4 00/16] Kill SMP single function call interrupt Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 01/16] smp, alpha: " Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 02/16] smp, ARM: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 03/16] smp, ARM64: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23 18:10   ` Catalin Marinas
2015-01-23 18:10     ` Catalin Marinas
2015-01-23  5:36 ` [Resend Patch v4 04/16] smp, IA64: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 05/16] smp, m32r: " Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 06/16] smp, mn10300: " Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 07/16] smp, mn10300: Enable arch_send_call_function_ipi_mask() Jiang Liu
2015-01-23  5:36 ` Jiang Liu [this message]
2015-01-23  5:36   ` [Resend Patch v4 08/16] smp, sh: Kill SMP single function call interrupt Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 09/16] smp, sparc64: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 10/16] smp, sparc: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 11/16] smp, x86, xen: " Jiang Liu
2015-01-23  5:36   ` Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 12/16] smp, x86: " Jiang Liu
2015-01-23  5:36 ` Jiang Liu
2015-01-23  8:53   ` Peter Zijlstra
2015-01-23  8:53   ` Peter Zijlstra
2015-01-23 11:20   ` Borislav Petkov
2015-01-23 11:20   ` Borislav Petkov
2015-01-23  5:36 ` [Resend Patch v4 13/16] smp, tile: " Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 14/16] smp, s390: " Jiang Liu
2015-01-23  6:54   ` Heiko Carstens
2015-01-23  9:21     ` Jiang Liu
2015-01-23  9:32       ` Heiko Carstens
2015-01-23  5:36 ` [Resend Patch v4 15/16] smp: Cleanup unsued generic_smp_call_function_single_interrupt() Jiang Liu
2015-01-23  5:36 ` [Resend Patch v4 16/16] smp, trivial: Remove unused function prototype from smp_boot.h Jiang Liu
2015-01-24 19:28 ` [Resend Patch v4 00/16] Kill SMP single function call interrupt Thomas Gleixner
2015-01-26  2:13   ` Jiang Liu

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