nbd: obey FUA on reads

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2026-07-06 00:20:22 -07:00 · 2012-04-19 17:19:37 +02:00
parent 38ceff0412
commit e25ceb76e5
1 changed files with 9 additions and 0 deletions
@@ -842,6 +842,15 @@ static void nbd_trip(void *opaque)
    case NBD_CMD_READ:
        TRACE("Request type is READ");

+        if (request.type & NBD_CMD_FLAG_FUA) {
+            ret = bdrv_co_flush(exp->bs);
+            if (ret < 0) {
+                LOG("flush failed");
+                reply.error = -ret;
+                goto error_reply;
+            }
+        }
+
        ret = bdrv_read(exp->bs, (request.from + exp->dev_offset) / 512,
                        req->data, request.len / 512);
        if (ret < 0) {