[package] nvram: request memory locked pages in mmap() and make it available for...

[openwrt.git] / package / nvram / src / nvram.c

diff --git a/package/nvram/src/nvram.c b/package/nvram/src/nvram.c
index ed3da43..7ab8c81 100644 (file)
--- a/package/nvram/src/nvram.c
+++ b/package/nvram/src/nvram.c
@@ -2,7 +2,7 @@
  * NVRAM variable manipulation (common)
  *
  * Copyright 2004, Broadcom Corporation
- * Copyright 2009, OpenWrt.org
+ * Copyright 2009-2010, OpenWrt.org
  * All Rights Reserved.
  *
  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
@@ -357,7 +357,7 @@ nvram_handle_t * nvram_open(const char *file, int rdonly)
        {
                char *mmap_area = (char *) mmap(
                        NULL, nvram_erase_size, PROT_READ | PROT_WRITE,
-                       ( rdonly == NVRAM_RO ) ? MAP_PRIVATE : MAP_SHARED, fd, 0);
+                       (( rdonly == NVRAM_RO ) ? MAP_PRIVATE : MAP_SHARED) | MAP_LOCKED, fd, 0);
 
                if( mmap_area != MAP_FAILED )
                {