ram: rename last_block to last_seen_block

Signed-off-by: Juan Quintela <quintela@redhat.com>

diff --git a/arch_init.c b/arch_init.c
index af1ae9f72aab0eea19615b767f9c339c67df0837..4351d304a8ab75df3193b288b8faf33aa412352f 100644 (file)
--- a/arch_init.c
+++ b/arch_init.c
@@ -332,7 +332,10 @@ static int save_xbzrle_page(QEMUFile *f, uint8_t *current_data,
     return bytes_sent;
 }
 
-static RAMBlock *last_block;
+
+/* This is the last block that we have visited serching for dirty pages
+ */
+static RAMBlock *last_seen_block;
 static ram_addr_t last_offset;
 static unsigned long *migration_bitmap;
 static uint64_t migration_dirty_pages;
@@ -417,7 +420,7 @@ static void migration_bitmap_sync(void)
 
 static int ram_save_block(QEMUFile *f, bool last_stage)
 {
-    RAMBlock *block = last_block;
+    RAMBlock *block = last_seen_block;
     ram_addr_t offset = last_offset;
     int bytes_sent = -1;
     MemoryRegion *mr;
@@ -430,7 +433,8 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
         mr = block->mr;
         if (migration_bitmap_test_and_reset_dirty(mr, offset)) {
             uint8_t *p;
-            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
+            int cont = (block == last_seen_block) ?
+                RAM_SAVE_FLAG_CONTINUE : 0;
 
             p = memory_region_get_ram_ptr(mr) + offset;
 
@@ -469,9 +473,9 @@ static int ram_save_block(QEMUFile *f, bool last_stage)
             if (!block)
                 block = QTAILQ_FIRST(&ram_list.blocks);
         }
-    } while (block != last_block || offset != last_offset);
+    } while (block != last_seen_block || offset != last_offset);
 
-    last_block = block;
+    last_seen_block = block;
     last_offset = offset;
 
     return bytes_sent;
@@ -530,7 +534,7 @@ static void ram_migration_cancel(void *opaque)
 
 static void reset_ram_globals(void)
 {
-    last_block = NULL;
+    last_seen_block = NULL;
     last_offset = 0;
     last_version = ram_list.version;
 }