migration: migration_file_set_error

Define and export migration_file_set_error to eliminate a dependency
on MigrationState.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Link: https://lore.kernel.org/r/1710179338-294359-9-git-send-email-steven.sistare@oracle.com
Signed-off-by: Peter Xu <peterx@redhat.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/migration/migration.c b/migration/migration.c
index db1e627..216f63d 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -3038,6 +3038,17 @@ static MigThrError postcopy_pause(MigrationState *s)
     }
 }
 
+void migration_file_set_error(int err)
+{
+    MigrationState *s = current_migration;
+
+    WITH_QEMU_LOCK_GUARD(&s->qemu_file_lock) {
+        if (s->to_dst_file) {
+            qemu_file_set_error(s->to_dst_file, err);
+        }
+    }
+}
+
 static MigThrError migration_detect_error(MigrationState *s)
 {
     int ret;