* vfs_boot.cpp now also exports gReadOnlyBootDevice which is true when the

boot device is actually read-only (even if it's using the write overlay).
* Do not create a swap file on a read-only device - this would really be a
  stupid use of the write overlay (just saw this happening on an older
  machine).
* Made swap_file_{add|delete}() take a const char* path - there was no reason
  this was writable, and this also avoids casting away the const when adding
  the default swap file.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30975 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/boot_device.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2005, Axel Dörfler, [email protected]. All rights reserved.
+ * Copyright 2005-2009, Axel Dörfler, [email protected].
  * Distributed under the terms of the MIT License.
  */
 #ifndef _KERNEL_BOOT_DEVICE_H
@@ -10,6 +10,7 @@
 
 
 extern dev_t gBootDevice;
+extern bool gReadOnlyBootDevice;
 	// defined in fs/vfs_boot.cpp
 
 #endif	/* _KERNEL_BOOT_DEVICE_H */