migration: Don't create decompression threads if not enabled

Signed-off-by: Juan Quintela <[email protected]> Reviewed-by: Dr. David Alan Gilbert <[email protected]> Reviewed-by: Peter Xu <[email protected]> -- I removed the [HACK] part because previous patch just check that compression pages are not received.
0x3h · Jun 14, 2017 · 3416ab5 · 3416ab5
1 parent edc6012
commit 3416ab5
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/migration/ram.c b/migration/ram.c
@@ -2234,6 +2234,9 @@ void migrate_decompress_threads_create(void)
 {
     int i, thread_count;
 
+    if (!migrate_use_compression()) {
+        return;
+    }
     thread_count = migrate_decompress_threads();
     decompress_threads = g_new0(QemuThread, thread_count);
     decomp_param = g_new0(DecompressParam, thread_count);
@@ -2255,6 +2258,9 @@ void migrate_decompress_threads_join(void)
 {
     int i, thread_count;
 
+    if (!migrate_use_compression()) {
+        return;
+    }
     thread_count = migrate_decompress_threads();
     for (i = 0; i < thread_count; i++) {
         qemu_mutex_lock(&decomp_param[i].mutex);