ram: Move xbzrle_pages into RAMState

Signed-off-by: NJuan Quintela <quintela@redhat.com>
Reviewed-by: NDr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: NPeter Xu <peterx@redhat.com>

--

Comment why we need bytes and pages

migration/ram.c

@@ -172,8 +172,11 @@ struct RAMState {
     uint64_t norm_pages;
     /* Iterations since start */
     uint64_t iterations;
-    /* xbzrle transmitted bytes */
+    /* xbzrle transmitted bytes.  Notice that this is with
+     * compression, they can't be calculated from the pages */
     uint64_t xbzrle_bytes;
+    /* xbzrle transmmited pages */
+    uint64_t xbzrle_pages;
 };
 typedef struct RAMState RAMState;
 
@@ -181,7 +184,6 @@ static RAMState ram_state;
 
 /* accounting for migration statistics */
 typedef struct AccountingInfo {
-    uint64_t xbzrle_pages;
     uint64_t xbzrle_cache_miss;
     double xbzrle_cache_miss_rate;
     uint64_t xbzrle_overflows;
@@ -211,7 +213,7 @@ uint64_t xbzrle_mig_bytes_transferred(void)
 
 uint64_t xbzrle_mig_pages_transferred(void)
 {
-    return acct_info.xbzrle_pages;
+    return ram_state.xbzrle_pages;
 }
 
 uint64_t xbzrle_mig_pages_cache_miss(void)
@@ -544,7 +546,7 @@ static int save_xbzrle_page(RAMState *rs, QEMUFile *f, uint8_t **current_data,
     qemu_put_be16(f, encoded_len);
     qemu_put_buffer(f, XBZRLE.encoded_buf, encoded_len);
     bytes_xbzrle += encoded_len + 1 + 2;
-    acct_info.xbzrle_pages++;
+    rs->xbzrle_pages++;
     rs->xbzrle_bytes += bytes_xbzrle;
     *bytes_transferred += bytes_xbzrle;
 
@@ -1998,6 +2000,7 @@ static int ram_save_init_globals(RAMState *rs)
     rs->norm_pages = 0;
     rs->iterations = 0;
     rs->xbzrle_bytes = 0;
+    rs->xbzrle_pages = 0;
     migration_bitmap_sync_init(rs);
     qemu_mutex_init(&migration_bitmap_mutex);