From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753462Ab3AXDHv (ORCPT ); Wed, 23 Jan 2013 22:07:51 -0500 Received: from mga11.intel.com ([192.55.52.93]:6332 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752944Ab3AXDHb (ORCPT ); Wed, 23 Jan 2013 22:07:31 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.84,525,1355126400"; d="scan'208";a="277724998" From: Alex Shi To: torvalds@linux-foundation.org, mingo@redhat.com, peterz@infradead.org, tglx@linutronix.de, akpm@linux-foundation.org, arjan@linux.intel.com, bp@alien8.de, pjt@google.com, namhyung@kernel.org, efault@gmx.de Cc: vincent.guittot@linaro.org, gregkh@linuxfoundation.org, preeti@linux.vnet.ibm.com, viresh.kumar@linaro.org, linux-kernel@vger.kernel.org, alex.shi@intel.com Subject: [patch v4 01/18] sched: set SD_PREFER_SIBLING on MC domain to reduce a domain level Date: Thu, 24 Jan 2013 11:06:43 +0800 Message-Id: <1358996820-23036-2-git-send-email-alex.shi@intel.com> X-Mailer: git-send-email 1.7.12 In-Reply-To: <1358996820-23036-1-git-send-email-alex.shi@intel.com> References: <1358996820-23036-1-git-send-email-alex.shi@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The domain flag SD_PREFER_SIBLING was set both on MC and CPU domain at frist commit b5d978e0c7e79a, and was removed uncarefully when clear up obsolete power scheduler. Then commit 6956dc568 recover the flag on CPU domain only. It works, but it introduces a extra domain level since this cause MC/CPU different. So, recover the the flag in MC domain too to remove a domain level in x86 platform. Reported-by: Mike Galbraith Signed-off-by: Alex Shi --- include/linux/topology.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/topology.h b/include/linux/topology.h index d3cf0d6..386bcf4 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -132,6 +132,7 @@ int arch_update_cpu_topology(void); | 0*SD_SHARE_CPUPOWER \ | 1*SD_SHARE_PKG_RESOURCES \ | 0*SD_SERIALIZE \ + | 1*SD_PREFER_SIBLING \ , \ .last_balance = jiffies, \ .balance_interval = 1, \ -- 1.7.12