[PULL 09/21] migration/rdma: Don't use imaginary transfers

[Juan Quintela <quintela@redhat.com>]

RDMA protocol is completely asynchronous, so in qemu_rdma_save_page()
they "invent" that a byte has been transferred.  And then they call
qemu_file_credit_transfer() and ram_transferred_add() with that byte.
Just remove that calls as nothing has been sent.

Reviewed-by: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230515195709.63843-14-quintela@redhat.com>
---
 migration/qemu-file.c | 5 +----
 migration/ram.c       | 1 -
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/migration/qemu-file.c b/migration/qemu-file.c
index acc282654a..23a21e2331 100644
--- a/migration/qemu-file.c
+++ b/migration/qemu-file.c
@@ -346,13 +346,10 @@ size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
 
         if (ret != RAM_SAVE_CONTROL_DELAYED &&
             ret != RAM_SAVE_CONTROL_NOT_SUPP) {
-            if (bytes_sent && *bytes_sent > 0) {
-                qemu_file_credit_transfer(f, *bytes_sent);
-            } else if (ret < 0) {
+            if (ret < 0) {
                 qemu_file_set_error(f, ret);
             }
         }
-
         return ret;
     }
 
diff --git a/migration/ram.c b/migration/ram.c
index 40b8f9630d..da0dfd7072 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -1155,7 +1155,6 @@ static bool control_save_page(PageSearchStatus *pss, RAMBlock *block,
     }
 
     if (bytes_xmit) {
-        ram_transferred_add(bytes_xmit);
         *pages = 1;
     }
 
-- 
2.40.1