From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:40597) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SsIyE-0007Ho-52 for qemu-devel@nongnu.org; Fri, 20 Jul 2012 15:36:23 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SsIwN-0002XQ-GU for qemu-devel@nongnu.org; Fri, 20 Jul 2012 15:34:38 -0400 Received: from mail-we0-f173.google.com ([74.125.82.173]:35320) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SsIwN-0002Vt-A7 for qemu-devel@nongnu.org; Fri, 20 Jul 2012 15:32:43 -0400 Received: by weyz53 with SMTP id z53so2920397wey.4 for ; Fri, 20 Jul 2012 12:32:42 -0700 (PDT) From: benoit.canet@gmail.com Date: Fri, 20 Jul 2012 21:32:35 +0200 Message-Id: <1342812757-2651-2-git-send-email-benoit@irqsave.net> In-Reply-To: <1342812757-2651-1-git-send-email-benoit@irqsave.net> References: <1342812757-2651-1-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 1/3] block: Add bdrv_have_block_jobs() so migration code abort if needed. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: stefanha@gmail.com, stefanha@linux.vnet.ibm.com, =?UTF-8?q?Beno=C3=AEt=20Canet?= From: Benoît Canet qmp_migrate() will be able to check if some block jobs are running using bdrv_have_block_jobs() and abort safely if needed. Signed-off-by: Benoit Canet --- block.c | 14 ++++++++++++++ block.h | 2 ++ 2 files changed, 16 insertions(+) diff --git a/block.c b/block.c index ce7eb8f..2b7b999 100644 --- a/block.c +++ b/block.c @@ -4027,6 +4027,20 @@ out: return ret; } +bool bdrv_have_block_jobs(void) +{ + BlockDriverState *bs; + + QTAILQ_FOREACH(bs, &bdrv_states, list) { + if (bs->job || bdrv_in_use(bs)) { + return true; + } + bdrv_close(bs); + } + + return false; +} + void *block_job_create(const BlockJobType *job_type, BlockDriverState *bs, int64_t speed, BlockDriverCompletionFunc *cb, void *opaque, Error **errp) diff --git a/block.h b/block.h index c89590d..1335a2b 100644 --- a/block.h +++ b/block.h @@ -337,6 +337,8 @@ void bdrv_disable_copy_on_read(BlockDriverState *bs); void bdrv_set_in_use(BlockDriverState *bs, int in_use); int bdrv_in_use(BlockDriverState *bs); +bool bdrv_have_block_jobs(void); + enum BlockAcctType { BDRV_ACCT_READ, BDRV_ACCT_WRITE, -- 1.7.9.5