Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932218AbVIOIuq (ORCPT ); Thu, 15 Sep 2005 04:50:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932237AbVIOIuq (ORCPT ); Thu, 15 Sep 2005 04:50:46 -0400 Received: from e4.ny.us.ibm.com ([32.97.182.144]:39108 "EHLO e4.ny.us.ibm.com") by vger.kernel.org with ESMTP id S932218AbVIOIuq (ORCPT ); Thu, 15 Sep 2005 04:50:46 -0400 Date: Thu, 15 Sep 2005 14:20:15 +0530 From: Srivatsa Vaddagiri To: linux-kernel@vger.kernel.org Cc: Andrew Morton , schwidefsky@de.ibm.com Subject: [PATCH 0/3] NO_IDLE_HZ support patches Message-ID: <20050915085015.GA10191@in.ibm.com> Reply-To: vatsa@in.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 955 Lines: 30 CONFIG_NO_IDLE_HZ (supported on s390 and ARM currently, but also gaining x86 support very soon) lets timer ticks to be skipped on idle CPUs. This has several implications on core kernel, which are addressed in these patches sent in separate mails. Patch 0/3 - This mail. Patch 1/3 - Fix a RCU race condition Patch 2/3 - add_timer_on needs to check for wakeup of sleeping CPU. Patch 3/3 - Take care of scheduler load imbalance because rebalance does not happen when idle CPU shuts of ticks for extended periods. (This is more of place holder right now for a real patch). -- Thanks and Regards, Srivatsa Vaddagiri, Linux Technology Center, IBM Software Labs, Bangalore, INDIA - 560017 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/