[Qemu-devel] [PATCH] docs/block-replication.txt: Add more detail about replication_do_checkpoint_all

[Zhang Chen]

Add more detail description for COLO checkpoint use case.
Suggested by Dr. David Alan Gilbert <address@hidden>

Signed-off-by: Zhang Chen <address@hidden>
---
 docs/block-replication.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/docs/block-replication.txt b/docs/block-replication.txt
index 6bde6737fb..b6c5e94764 100644
--- a/docs/block-replication.txt
+++ b/docs/block-replication.txt
@@ -131,9 +131,10 @@ a. replication_start_all()
    thread.
 b. replication_do_checkpoint_all()
    This interface is called after all VM state is transferred to
-   Secondary QEMU. The Disk buffer will be dropped in this interface.
-   The caller must hold the I/O mutex lock if it is in migration/checkpoint
-   thread.
+   secondary node, and in primary node this interface no need to
+   called after synchronizing all the states. The Disk buffer will be dropped
+   in this interface. The caller must hold the I/O mutex lock if it is
+   in migration/checkpoint thread.
 c. replication_get_error_all()
    This interface is called to check if error happened in replication.
    The caller must hold the I/O mutex lock if it is in migration/checkpoint
-- 
2.17.GIT