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migration/dirtyrate: present dirty rate only when querying the rate has completed

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Make dirty_rate field optional, present dirty rate only when querying
the rate has completed.
The qmp results is shown as follow:
@unstarted:
{"return":{"status":"unstarted","start-time":0,"calc-time":0},"id":"libvirt-12"}
@measuring:
{"return":{"status":"measuring","start-time":102931,"calc-time":1},"id":"libvirt-85"}
@measured:
{"return":{"status":"measured","dirty-rate":4,"start-time":150146,"calc-time":1},"id":"libvirt-15"}

Signed-off-by: Chuan Zheng <zhengchuan@huawei.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <1601350938-128320-3-git-send-email-zhengchuan@huawei.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Chuan Zheng 2020-09-29 11:42:18 +08:00 • committed by Dr. David Alan Gilbert
parent aa84b506f7
commit b1a859cfb0
2 changed files with 4 additions and 7 deletions
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3
migration/dirtyrate.c
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@ -69,9 +69,8 @@ static struct DirtyRateInfo *query_dirty_rate_info(void)
struct DirtyRateInfo *info = g_malloc0(sizeof(DirtyRateInfo));
if (qatomic_read(&CalculatingState) == DIRTY_RATE_STATUS_MEASURED) {
info->has_dirty_rate = true;
info->dirty_rate = dirty_rate;
} else {
info->dirty_rate = -1;
}
info->status = CalculatingState;