From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59946) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1StGjn-000490-Gi for qemu-devel@nongnu.org; Mon, 23 Jul 2012 07:23:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1StGjm-0001U1-E7 for qemu-devel@nongnu.org; Mon, 23 Jul 2012 07:23:43 -0400 Received: from mail-bk0-f45.google.com ([209.85.214.45]:40800) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1StGjm-0001Tp-7I for qemu-devel@nongnu.org; Mon, 23 Jul 2012 07:23:42 -0400 Received: by bkcji1 with SMTP id ji1so4304510bkc.4 for ; Mon, 23 Jul 2012 04:23:40 -0700 (PDT) From: benoit.canet@gmail.com Date: Mon, 23 Jul 2012 13:23:32 +0200 Message-Id: <1343042615-5013-1-git-send-email-benoit@irqsave.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PATCH V2 0/3] Block migration when streaming block jobs are running List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: kwolf@redhat.com, stefanha@gmail.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= , stefanha@linux.vnet.ibm.com, pbonzini@redhat.com From: Benoît Canet This patchset is designed to avoid starting a live migration while one or more streaming block jobs are running. Tested with the following sequence: QEMU 1.1.50 monitor - type 'help' for more information (qemu) block_stream virtio0 1k (qemu) migrate tcp:localhost:4444 migrate: Streaming blocks migration (qemu) migrate tcp:localhost:4444 migrate: Streaming blocks migration (qemu) block_job_cancel virtio0 (qemu) migrate tcp:localhost:4444 migrate: Connection can not be completed immediately (qemu) => migration then succeed in v2: stefanha: Rename bdrv_have_block_jobs() to bdrv_are_busy() and make it return -EBUSY. paolo: remove spurious bdrv_close() Benoît Canet (3): block: Add bdrv_are_busy() so migration code abort if needed. qerror: Add error telling that streaming blocks migration migration: block migration when streaming block jobs are running. block.c | 13 +++++++++++++ block.h | 2 ++ migration.c | 5 +++++ qerror.c | 4 ++++ qerror.h | 3 +++ 5 files changed, 27 insertions(+) -- 1.7.9.5