From mboxrd@z Thu Jan 1 00:00:00 1970 From: Asias He Subject: [PATCH 3/3] kvm tools: Make virtio-blk kvm__irq_line thread safe Date: Fri, 29 Apr 2011 14:36:25 +0800 Message-ID: <1304058985-13833-3-git-send-email-asias.hejun@gmail.com> References: <1304058985-13833-1-git-send-email-asias.hejun@gmail.com> Cc: kvm@vger.kernel.org, Asias He To: Pekka Enberg , Cyrill Gorcunov , Ingo Molnar , Sasha Levin , Prasad Joshi Return-path: Received: from mail-pw0-f46.google.com ([209.85.160.46]:37407 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752094Ab1D2GiM (ORCPT ); Fri, 29 Apr 2011 02:38:12 -0400 Received: by mail-pw0-f46.google.com with SMTP id 15so1653420pwi.19 for ; Thu, 28 Apr 2011 23:38:12 -0700 (PDT) In-Reply-To: <1304058985-13833-1-git-send-email-asias.hejun@gmail.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Asias He --- tools/kvm/virtio-blk.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/tools/kvm/virtio-blk.c b/tools/kvm/virtio-blk.c index 3feabd0..ade6335 100644 --- a/tools/kvm/virtio-blk.c +++ b/tools/kvm/virtio-blk.c @@ -159,7 +159,9 @@ static void virtio_blk_do_io(struct kvm *kvm, void *param) while (virt_queue__available(vq)) virtio_blk_do_io_request(kvm, vq); + mutex_lock(&blk_device.mutex); kvm__irq_line(kvm, VIRTIO_BLK_IRQ, 1); + mutex_unlock(&blk_device.mutex); } static bool virtio_blk_pci_io_out(struct kvm *self, uint16_t port, void *data, int size, uint32_t count) -- 1.7.4.4