vhost: fix log ctx signalling

The log eventfd signalling got put in dead code. We didn't notice because qemu currently does polling instead of eventfd select. Signed-off-by: Michael S. Tsirkin <[email protected]>
mgowda · Sep 22, 2010 · 5786aee · 5786aee
1 parent ee05d69
commit 5786aee
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
@@ -858,11 +858,12 @@ int vhost_log_write(struct vhost_virtqueue *vq, struct vhost_log *log,
 		if (r < 0)
 			return r;
 		len -= l;
-		if (!len)
+		if (!len) {
+			if (vq->log_ctx)
+				eventfd_signal(vq->log_ctx, 1);
 			return 0;
+		}
 	}
-	if (vq->log_ctx)
-		eventfd_signal(vq->log_ctx, 1);
 	/* Length written exceeds what we have stored. This is a bug. */
 	BUG();
 	return 0;