ram: make all save_page functions take a uint64_t parameter

It used to be an int, but then we can't pass directly the
bytes_transferred parameter, that would happen later in the series.
Signed-off-by: NJuan Quintela <quintela@redhat.com>
Reviewed-by: NAmit Shah <amit.shah@redhat.com>

arch_init.c

@@ -584,6 +584,7 @@ static int ram_save_page(QEMUFile *f, RAMBlock* block, ram_addr_t offset,
                          bool last_stage)
 {
     int bytes_sent;
+    uint64_t bytes_xmit;
     int cont;
     ram_addr_t current_addr;
     MemoryRegion *mr = block->mr;
@@ -597,17 +598,21 @@ static int ram_save_page(QEMUFile *f, RAMBlock* block, ram_addr_t offset,
 
     /* In doubt sent page as normal */
     bytes_sent = -1;
+    bytes_xmit = 0;
     ret = ram_control_save_page(f, block->offset,
-                           offset, TARGET_PAGE_SIZE, &bytes_sent);
+                           offset, TARGET_PAGE_SIZE, &bytes_xmit);
+    if (bytes_xmit) {
+        bytes_sent = bytes_xmit;
+    }
 
     XBZRLE_cache_lock();
 
     current_addr = block->offset + offset;
     if (ret != RAM_SAVE_CONTROL_NOT_SUPP) {
         if (ret != RAM_SAVE_CONTROL_DELAYED) {
-            if (bytes_sent > 0) {
+            if (bytes_xmit > 0) {
                 acct_info.norm_pages++;
-            } else if (bytes_sent == 0) {
+            } else if (bytes_xmit == 0) {
                 acct_info.dup_pages++;
             }
         }

include/migration/migration.h

@@ -169,6 +169,6 @@ void ram_control_load_hook(QEMUFile *f, uint64_t flags);
 
 size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
                              ram_addr_t offset, size_t size,
-                             int *bytes_sent);
+                             uint64_t *bytes_sent);
 
 #endif

include/migration/qemu-file.h

@@ -82,7 +82,7 @@ typedef size_t (QEMURamSaveFunc)(QEMUFile *f, void *opaque,
                                ram_addr_t block_offset,
                                ram_addr_t offset,
                                size_t size,
-                               int *bytes_sent);
+                               uint64_t *bytes_sent);
 
 /*
  * Stop any read or write (depending on flags) on the underlying

migration/qemu-file.c

@@ -161,7 +161,8 @@ void ram_control_load_hook(QEMUFile *f, uint64_t flags)
 }
 
 size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
-                         ram_addr_t offset, size_t size, int *bytes_sent)
+                             ram_addr_t offset, size_t size,
+                             uint64_t *bytes_sent)
 {
     if (f->ops->save_page) {
         int ret = f->ops->save_page(f, f->opaque, block_offset,

migration/rdma.c

@@ -2654,7 +2654,7 @@ static int qemu_rdma_close(void *opaque)
  */
 static size_t qemu_rdma_save_page(QEMUFile *f, void *opaque,
                                   ram_addr_t block_offset, ram_addr_t offset,
-                                  size_t size, int *bytes_sent)
+                                  size_t size, uint64_t *bytes_sent)
 {
     QEMUFileRDMA *rfile = opaque;
     RDMAContext *rdma = rfile->rdma;