From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:59202) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1StIL5-0005rd-23 for qemu-devel@nongnu.org; Mon, 23 Jul 2012 09:06:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1StIKx-0006Hn-Gt for qemu-devel@nongnu.org; Mon, 23 Jul 2012 09:06:18 -0400 Received: from mail-bk0-f45.google.com ([209.85.214.45]:62543) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1StIKx-0006Hj-9X for qemu-devel@nongnu.org; Mon, 23 Jul 2012 09:06:11 -0400 Received: by bkcji1 with SMTP id ji1so4419060bkc.4 for ; Mon, 23 Jul 2012 06:06:10 -0700 (PDT) From: benoit.canet@gmail.com Date: Mon, 23 Jul 2012 15:06:03 +0200 Message-Id: <1343048766-20142-1-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 V3 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: Migration is blocked by streaming (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() in v3 pm215: rewrite confusing error message Benoît Canet (3): block: Add bdrv_are_busy() 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