From patchwork Tue Nov 2 09:35:35 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 296902 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id oA29VJlY018438 for ; Tue, 2 Nov 2010 09:31:20 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752725Ab0KBJbN (ORCPT ); Tue, 2 Nov 2010 05:31:13 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:57199 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1750895Ab0KBJbM (ORCPT ); Tue, 2 Nov 2010 05:31:12 -0400 Received: from tang.cn.fujitsu.com (tang.cn.fujitsu.com [10.167.250.3]) by song.cn.fujitsu.com (Postfix) with ESMTP id 4B9FC17008D; Tue, 2 Nov 2010 17:31:21 +0800 (CST) Received: from fnst.cn.fujitsu.com (tang.cn.fujitsu.com [127.0.0.1]) by tang.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id oA29QvOg029242; Tue, 2 Nov 2010 17:26:57 +0800 Received: from [10.167.225.99] (unknown [10.167.225.99]) by fnst.cn.fujitsu.com (Postfix) with ESMTPA id 3173714C0A6; Tue, 2 Nov 2010 17:33:01 +0800 (CST) Message-ID: <4CCFDB67.9050401@cn.fujitsu.com> Date: Tue, 02 Nov 2010 17:35:35 +0800 From: Xiao Guangrong User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100713 Thunderbird/3.0.6 MIME-Version: 1.0 To: Gleb Natapov CC: Avi Kivity , Marcelo Tosatti , LKML , KVM Subject: [PATCH v3 5/7] KVM: handle more completed apfs if possible References: <4CCE8143.3090105@cn.fujitsu.com> <4CCE822B.1070909@cn.fujitsu.com> <20101101092457.GY26191@redhat.com> In-Reply-To: <20101101092457.GY26191@redhat.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 02 Nov 2010 09:31:20 +0000 (UTC) diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 60df9e0..100c66e 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -124,24 +124,24 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu) { struct kvm_async_pf *work; - if (list_empty_careful(&vcpu->async_pf.done) || - !kvm_arch_can_inject_async_page_present(vcpu)) - return; - - spin_lock(&vcpu->async_pf.lock); - work = list_first_entry(&vcpu->async_pf.done, typeof(*work), link); - list_del(&work->link); - spin_unlock(&vcpu->async_pf.lock); + while (!list_empty_careful(&vcpu->async_pf.done) && + kvm_arch_can_inject_async_page_present(vcpu)) { + spin_lock(&vcpu->async_pf.lock); + work = list_first_entry(&vcpu->async_pf.done, typeof(*work), + link); + list_del(&work->link); + spin_unlock(&vcpu->async_pf.lock); - if (work->page) - kvm_arch_async_page_ready(vcpu, work); - kvm_arch_async_page_present(vcpu, work); + if (work->page) + kvm_arch_async_page_ready(vcpu, work); + kvm_arch_async_page_present(vcpu, work); - list_del(&work->queue); - vcpu->async_pf.queued--; - if (work->page) - put_page(work->page); - kmem_cache_free(async_pf_cache, work); + list_del(&work->queue); + vcpu->async_pf.queued--; + if (work->page) + put_page(work->page); + kmem_cache_free(async_pf_cache, work); + } } int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,