From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark McLoughlin Subject: [PATCH 2/3] kvm: qemu: handle link status in qemu_sendv_packet() Date: Tue, 9 Dec 2008 11:20:12 +0000 Message-ID: <1228821613-28724-3-git-send-email-markmc@redhat.com> References: <> <1228821613-28724-1-git-send-email-markmc@redhat.com> <1228821613-28724-2-git-send-email-markmc@redhat.com> Cc: kvm@vger.kernel.org, Anthony Liguori , Rusty Russell , Mark McLoughlin To: Avi Kivity Return-path: Received: from mail24.svc.cra.dublin.eircom.net ([159.134.118.53]:31329 "HELO mail24.svc.cra.dublin.eircom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752347AbYLILVh (ORCPT ); Tue, 9 Dec 2008 06:21:37 -0500 In-Reply-To: <1228821613-28724-2-git-send-email-markmc@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Signed-off-by: Mark McLoughlin --- qemu/net.c | 18 +++++++++++++++++- 1 files changed, 17 insertions(+), 1 deletions(-) diff --git a/qemu/net.c b/qemu/net.c index 16a0990..f23a17f 100644 --- a/qemu/net.c +++ b/qemu/net.c @@ -400,6 +400,17 @@ static ssize_t vc_sendv_compat(VLANClientState *vc, const struct iovec *iov, return offset; } +static ssize_t calc_iov_length(const struct iovec *iov, int iovcnt) +{ + size_t offset = 0; + int i; + + for (i = 0; i < iovcnt; i++) + offset += iov[i].iov_len; + + return offset; +} + ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, int iovcnt) { @@ -407,13 +418,18 @@ ssize_t qemu_sendv_packet(VLANClientState *vc1, const struct iovec *iov, VLANClientState *vc; ssize_t max_len = 0; + if (vc1->link_down) + return calc_iov_length(iov, iovcnt); + for (vc = vlan->first_client; vc != NULL; vc = vc->next) { ssize_t len = 0; if (vc == vc1) continue; - if (vc->fd_readv) + if (vc->link_down) + len = calc_iov_length(iov, iovcnt); + else if (vc->fd_readv) len = vc->fd_readv(vc->opaque, iov, iovcnt); else if (vc->fd_read) len = vc_sendv_compat(vc, iov, iovcnt); -- 1.5.4.3