From bd1dd4cf663ca230724dc6beb329b7eb270ea9d5 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 31 May 2012 17:57:56 +0100
Subject: [PATCH] sna: If the CPU damage already contains the migration region,
 we are done

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---
 src/sna/sna_accel.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 4f4b7b3b..dfe4c5af 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -1539,6 +1539,11 @@ sna_drawable_move_region_to_cpu(DrawablePtr drawable,
 			goto done;
 		}
 
+		if (priv->cpu_damage &&
+		    sna_damage_contains_box__no_reduce(priv->cpu_damage,
+						       &region->extents))
+			goto done;
+
 		if (sna_damage_contains_box(priv->gpu_damage,
 					    &region->extents) != PIXMAN_REGION_OUT) {
 			RegionRec want, *r = region;