From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48282) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cDokr-0002n4-BQ for qemu-devel@nongnu.org; Mon, 05 Dec 2016 03:36:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cDokp-0000K0-BJ for qemu-devel@nongnu.org; Mon, 05 Dec 2016 03:36:09 -0500 From: zhanghailiang Date: Mon, 5 Dec 2016 16:35:01 +0800 Message-ID: <1480926904-17596-4-git-send-email-zhang.zhanghailiang@huawei.com> In-Reply-To: <1480926904-17596-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1480926904-17596-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH RFC v2 3/6] replication: Split out backup_do_checkpoint() from secondary_do_checkpoint() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-block@nongnu.org Cc: stefanha@redhat.com, kwolf@redhat.com, mreitz@redhat.com, pbonzini@redhat.com, wency@cn.fujitsu.com, xiecl.fnst@cn.fujitsu.com, zhanghailiang The helper backup_do_checkpoint() will be used for primary related codes. Here we split it out from secondary_do_checkpoint(). Besides, it is unnecessary to call backup_do_checkpoint() in replication starting and normally stop replication path. We only need call it while do real checkpointing. Signed-off-by: zhanghailiang --- block/replication.c | 36 +++++++++++++++++++----------------- 1 file changed, 19 insertions(+), 17 deletions(-) diff --git a/block/replication.c b/block/replication.c index e87ae87..35e9ab3 100644 --- a/block/replication.c +++ b/block/replication.c @@ -332,20 +332,8 @@ static bool replication_recurse_is_first_non_filter(BlockDriverState *bs, static void secondary_do_checkpoint(BDRVReplicationState *s, Error **errp) { - Error *local_err = NULL; int ret; - if (!s->secondary_disk->bs->job) { - error_setg(errp, "Backup job was cancelled unexpectedly"); - return; - } - - backup_do_checkpoint(s->secondary_disk->bs->job, &local_err); - if (local_err) { - error_propagate(errp, local_err); - return; - } - ret = s->active_disk->bs->drv->bdrv_make_empty(s->active_disk->bs); if (ret < 0) { error_setg(errp, "Cannot make active disk empty"); @@ -558,6 +546,8 @@ static void replication_start(ReplicationState *rs, ReplicationMode mode, return; } block_job_start(job); + + secondary_do_checkpoint(s, errp); break; default: aio_context_release(aio_context); @@ -566,10 +556,6 @@ static void replication_start(ReplicationState *rs, ReplicationMode mode, s->replication_state = BLOCK_REPLICATION_RUNNING; - if (s->mode == REPLICATION_MODE_SECONDARY) { - secondary_do_checkpoint(s, errp); - } - s->error = 0; aio_context_release(aio_context); } @@ -579,13 +565,29 @@ static void replication_do_checkpoint(ReplicationState *rs, Error **errp) BlockDriverState *bs = rs->opaque; BDRVReplicationState *s; AioContext *aio_context; + Error *local_err = NULL; aio_context = bdrv_get_aio_context(bs); aio_context_acquire(aio_context); s = bs->opaque; - if (s->mode == REPLICATION_MODE_SECONDARY) { + switch (s->mode) { + case REPLICATION_MODE_PRIMARY: + break; + case REPLICATION_MODE_SECONDARY: + if (!s->secondary_disk->bs->job) { + error_setg(errp, "Backup job was cancelled unexpectedly"); + break; + } + backup_do_checkpoint(s->secondary_disk->bs->job, &local_err); + if (local_err) { + error_propagate(errp, local_err); + break; + } secondary_do_checkpoint(s, errp); + break; + default: + abort(); } aio_context_release(aio_context); } -- 1.8.3.1