From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: [PATCHv3 0/4] kvm: locking and API rework for iosignalfd Date: Mon, 29 Jun 2009 15:08:46 +0300 Message-ID: <20090629120846.GA21273@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, avi@redhat.com, mtosatti@redhat.com, paulmck@linux.vnet.ibm.com, markmc@redhat.com To: Gregory Haskins , avi@redhat.com Return-path: Received: from mx2.redhat.com ([66.187.237.31]:58017 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751549AbZF2MJT (ORCPT ); Mon, 29 Jun 2009 08:09:19 -0400 Content-Disposition: inline Sender: kvm-owner@vger.kernel.org List-ID: This series switches kvm_io_device to slots_lock from kvm->lock mutex, and uses that to rework io bus API. This takes less locks on data path, and uses less lines of code. These changes will also be useful to serve as basis for Greg's iosignalfd work. Signed-off-by: Michael S. Tsirkin --- I have split the patch and reworked along the lines suggested by Avi. This works for me, but please review carefully. Michael S. Tsirkin (4): kvm: document locking for kvm_io_device_ops kvm: switch coalesced mmio changes to slots_lock kvm: convert bus to slots_lock kvm: remove in_range from io devices arch/ia64/kvm/kvm-ia64.c | 28 +++-------- arch/x86/kvm/i8254.c | 53 +++++++++++---------- arch/x86/kvm/i8259.c | 22 +++++---- arch/x86/kvm/lapic.c | 44 ++++++++---------- arch/x86/kvm/x86.c | 110 +++++++++++++-------------------------------- include/linux/kvm_host.h | 9 +++- virt/kvm/coalesced_mmio.c | 28 +++++------ virt/kvm/ioapic.c | 24 +++++----- virt/kvm/iodev.h | 42 +++++++---------- virt/kvm/kvm_main.c | 31 ++++++++----- 10 files changed, 171 insertions(+), 220 deletions(-)