Module Name: src
Committed By: maxv
Date: Wed Jul 20 12:38:44 UTC 2016
Modified Files:
src/sys/uvm: uvm_extern.h uvm_km.c
Log Message:
Introduce uvm_km_protect.
To generate a diff of this commit:
cvs rdiff -u -r1.197 -r1.198 src/sys/uvm/uvm_extern.h
cvs rdiff -u -r1.139 -r1.140 src/sys/uvm/uvm_km.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/uvm/uvm_extern.h
diff -u src/sys/uvm/uvm_extern.h:1.197 src/sys/uvm/uvm_extern.h:1.198
--- src/sys/uvm/uvm_extern.h:1.197 Wed May 25 17:43:58 2016
+++ src/sys/uvm/uvm_extern.h Wed Jul 20 12:38:43 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_extern.h,v 1.197 2016/05/25 17:43:58 christos Exp $ */
+/* $NetBSD: uvm_extern.h,v 1.198 2016/07/20 12:38:43 maxv Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -627,6 +627,8 @@ int uvm_io(struct vm_map *, struct uio
/* uvm_km.c */
vaddr_t uvm_km_alloc(struct vm_map *, vsize_t, vsize_t,
uvm_flag_t);
+int uvm_km_protect(struct vm_map *, vaddr_t, vsize_t,
+ vm_prot_t);
void uvm_km_free(struct vm_map *, vaddr_t, vsize_t,
uvm_flag_t);
Index: src/sys/uvm/uvm_km.c
diff -u src/sys/uvm/uvm_km.c:1.139 src/sys/uvm/uvm_km.c:1.140
--- src/sys/uvm/uvm_km.c:1.139 Fri Feb 6 18:19:22 2015
+++ src/sys/uvm/uvm_km.c Wed Jul 20 12:38:43 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: uvm_km.c,v 1.139 2015/02/06 18:19:22 maxv Exp $ */
+/* $NetBSD: uvm_km.c,v 1.140 2016/07/20 12:38:43 maxv Exp $ */
/*
* Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -152,7 +152,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_km.c,v 1.139 2015/02/06 18:19:22 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_km.c,v 1.140 2016/07/20 12:38:43 maxv Exp $");
#include "opt_uvmhist.h"
@@ -708,6 +708,16 @@ uvm_km_alloc(struct vm_map *map, vsize_t
}
/*
+ * uvm_km_protect: change the protection of an allocated area
+ */
+
+int
+uvm_km_protect(struct vm_map *map, vaddr_t addr, vsize_t size, vm_prot_t prot)
+{
+ return uvm_map_protect(map, addr, addr + round_page(size), prot, false);
+}
+
+/*
* uvm_km_free: free an area of kernel memory
*/
