From: Ben Gras <ben@minix3.org>
Date: Tue, 22 Sep 2009 11:51:17 +0000 (+0000)
Subject: unmap VR_DIRECT mappings too (fix for X)
X-Git-Tag: v3.1.5~109
X-Git-Url: http://zhaoyanbai.com/repos/doxygen.log?a=commitdiff_plain;h=0b713b0de5049efa9de47ad8bc6c0a6db3cea1de;p=minix.git

unmap VR_DIRECT mappings too (fix for X)
---

diff --git a/servers/vm/region.c b/servers/vm/region.c
index d71bfe459..8fcb728a1 100644
--- a/servers/vm/region.c
+++ b/servers/vm/region.c
@@ -499,7 +499,9 @@ PRIVATE int map_subfree(struct vmproc *vmp,
 					return r;
 			}
 			vm_assert(pr->ph->refcount == 1);
-			FREE_MEM(ABS2CLICK(pr->ph->phys), ABS2CLICK(sublen));
+			if(!(region->flags & VR_DIRECT)) {
+				FREE_MEM(ABS2CLICK(pr->ph->phys), ABS2CLICK(sublen));
+			}
 			USE(pr, pr->offset += sublen;);
 			USE(pr->ph,
 				pr->ph->phys += sublen;
@@ -1214,8 +1216,8 @@ PUBLIC int map_unmap_region(struct vmproc *vmp, struct vir_region *region,
 		return EINVAL;
 	}
 
-	if(!(r->flags & VR_ANON)) {
-		printf("VM: only unmap anonymous memory\n");
+	if(!(r->flags & (VR_ANON|VR_DIRECT))) {
+		printf("VM: only unmap anonymous or direct memory\n");
 		return EINVAL;
 	}