From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jiang Liu Subject: [RFC PATCH v3 03/19] smp, alpha: kill SMP single function call interrupt Date: Thu, 5 Dec 2013 00:12:54 +0800 Message-ID: <1386173591-28514-4-git-send-email-liuj97@gmail.com> References: <1386173591-28514-1-git-send-email-liuj97@gmail.com> Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=3tv+TEu3PvaEt4IngtbVcr9kjD1W46ZP8DACa2QJQbU=; b=pZLyeELooOUiA0ts14BiuqIa48QcTDncL7RWenB2q7yO0OGzjEj8sui9Ogr0mFUqs7 VFCoE63lWUNKHqilgr5QrT/P0ZZQatkKdDEJXm+HSG4COyw2fUF2vqq8E2iZnzG3rxuY u7Hzf14z/1cgkI0bj8OqHF3+UxnghMQxIezdj2fgejdH58uzLO+b9ZTy+GDtwkIjldiD 3NJ8NKRiCKKid1zrHP60ooFMITObEXMTZIgJjuijQutun1LnsahFw+3+Hl+IWvnNgzz+ Mz/vEMGGzuaaAJCKbouDaYVRcUTM7OMH/Jft+M2rSGkVpnteTz+5cuzPSuXzh8t4GVUT TYNA== In-Reply-To: <1386173591-28514-1-git-send-email-liuj97@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Andrew Morton , Shaohua Li , Richard Henderson , Ivan Kokshaysky , Matt Turner , Thomas Gleixner , Chen Gang , Paul Gortmaker , linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Jiang Liu , Ingo Molnar , Peter Zijlstra , Steven Rostedt , Jiri Kosina , Wang YanQing , linux-arch@vger.kernel.org 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 Cc: Shaohua Li Cc: Peter Zijlstra Cc: Ingo Molnar Cc: Steven Rostedt Cc: Jiri Kosina Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: linux-alpha@vger.kernel.org Signed-off-by: Jiang Liu --- 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; } - 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