On 10/20/2016 09:57 PM, zhanghailiang wrote:
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.
This patch is unnecessary. We *really* need clean
backup_job->done_bitmap in replication_start/stop path.
We only need call it while do real checkpointing.
Signed-off-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
---
block/replication.c | 36 +++++++++++++++++++-----------------
1 file changed, 19 insertions(+), 17 deletions(-)
diff --git a/block/replication.c b/block/replication.c
index 2a2fdb2..d687ffc 100644
--- a/block/replication.c
+++ b/block/replication.c
@@ -320,20 +320,8 @@ 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");
@@ -539,6 +527,8 @@ static void replication_start(ReplicationState *rs,
ReplicationMode mode,
aio_context_release(aio_context);
return;
}
+
+ secondary_do_checkpoint(s, errp);
break;
default:
aio_context_release(aio_context);
@@ -547,10 +537,6 @@ 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);
}
@@ -560,13 +546,29 @@ 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);
}