From d775ddc64dc8349b8ef9e85b0be9e93cb1997fea Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Fri, 13 Jun 2008 10:03:24 -0700
Subject: [PATCH] [gem] Catch -EINTR from blocking GEM ioctl and restart.

---
 src/i830_batchbuffer.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/i830_batchbuffer.c b/src/i830_batchbuffer.c
index 2f53d2ff..07ea0825 100644
--- a/src/i830_batchbuffer.c
+++ b/src/i830_batchbuffer.c
@@ -111,8 +111,10 @@ intel_batch_flush(ScrnInfoPtr pScrn)
 	exec->DR1 = 0;
 	exec->DR4 = 0xffffffff;
 
-	ret = drmCommandWriteRead(pI830->drmSubFD, DRM_I915_GEM_EXECBUFFER,
-				  exec, sizeof(*exec));
+	do {
+	    ret = drmCommandWriteRead(pI830->drmSubFD, DRM_I915_GEM_EXECBUFFER,
+				      exec, sizeof(*exec));
+	} while (ret == -EINTR);
 	if (ret != 0)
 	    FatalError("Failed to submit batchbuffer: %s\n", strerror(errno));
     } else {