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[PATCH for-9.1 v5 10/14] migration: Introduce ram_bitmaps_destroy()


From: Cédric Le Goater
Subject: [PATCH for-9.1 v5 10/14] migration: Introduce ram_bitmaps_destroy()
Date: Wed, 20 Mar 2024 07:49:06 +0100

We will use it in ram_init_bitmaps() to clear the allocated bitmaps when
support for error reporting is added to memory_global_dirty_log_start().

Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 migration/ram.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/migration/ram.c b/migration/ram.c
index 
4cd4f0158c8675e1515ef8476c64d1203eed4458..f0bd71438a4f7212118593b51648b645737933d4
 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2438,10 +2438,23 @@ static void xbzrle_cleanup(void)
     XBZRLE_cache_unlock();
 }
 
+static void ram_bitmaps_destroy(void)
+{
+    RAMBlock *block;
+
+    RAMBLOCK_FOREACH_NOT_IGNORED(block) {
+        g_free(block->clear_bmap);
+        block->clear_bmap = NULL;
+        g_free(block->bmap);
+        block->bmap = NULL;
+        g_free(block->file_bmap);
+        block->file_bmap = NULL;
+    }
+}
+
 static void ram_save_cleanup(void *opaque)
 {
     RAMState **rsp = opaque;
-    RAMBlock *block;
 
     /* We don't use dirty log with background snapshots */
     if (!migrate_background_snapshot()) {
@@ -2458,12 +2471,7 @@ static void ram_save_cleanup(void *opaque)
         }
     }
 
-    RAMBLOCK_FOREACH_NOT_IGNORED(block) {
-        g_free(block->clear_bmap);
-        block->clear_bmap = NULL;
-        g_free(block->bmap);
-        block->bmap = NULL;
-    }
+    ram_bitmaps_destroy();
 
     xbzrle_cleanup();
     compress_threads_save_cleanup();
-- 
2.44.0




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