0603-libvchan-use-xengntshr_unshare-instead-of-munmap-dir.patch

From 8cb93fca88461bd5b099ce15e7b38ece3c49c260 Mon Sep 17 00:00:00 2001
From: Marek Marczykowski <marmarek@invisiblethingslab.com>
Date: Fri, 26 Apr 2013 14:40:05 +0200
Subject: [PATCH] libvchan: use xengntshr_unshare instead of munmap directly

Signed-off-by: Marek Marczykowski <marmarek@invisiblethingslab.com>
---
 tools/libs/vchan/io.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/libs/vchan/io.c b/tools/libs/vchan/io.c
index 1f201ad554f2..9339e97c79d0 100644
--- a/tools/libs/vchan/io.c
+++ b/tools/libs/vchan/io.c
@@ -362,9 +362,11 @@ void libxenvchan_close(struct libxenvchan *ctrl)
 	if (!ctrl)
 		return;
 	if (ctrl->read.order >= PAGE_SHIFT)
-		munmap(ctrl->read.buffer, 1 << ctrl->read.order);
+		xengntshr_unshare(ctrl->gntshr, ctrl->read.buffer,
+				1 << (ctrl->read.order - PAGE_SHIFT));
 	if (ctrl->write.order >= PAGE_SHIFT)
-		munmap(ctrl->write.buffer, 1 << ctrl->write.order);
+		xengntshr_unshare(ctrl->gntshr, ctrl->write.buffer,
+				1 << (ctrl->write.order - PAGE_SHIFT));
 	if (ctrl->ring) {
 		if (ctrl->is_server) {
 			ctrl->ring->srv_live = 0;
-- 
2.44.0