Commit step 1 of the vimage project, (network stack)

virtualization work done by Marko Zec (zec@).

This is the first in a series of commits over the course
of the next few weeks.

Mark all uses of global variables to be virtualized
with a V_ prefix.
Use macros to map them back to their global names for
now, so this is a NOP change only.

We hope to have caught at least 85-90% of what is needed
so we do not invalidate a lot of outstanding patches again.

Obtained from:	//depot/projects/vimage-commit2/...
Reviewed by:	brooks, des, ed, mav, julian,
		jamie, kris, rwatson, zec, ...
		(various people I forgot, different versions)
		md5 (with a bit of help)
Sponsored by:	NLnet Foundation, The FreeBSD Foundation
X-MFC after:	never
V_Commit_Message_Reviewed_By:	more people than the patch

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c
index e178ce6..e7a1333 100644
--- a/sys/kern/kern_mib.c
+++ b/sys/kern/kern_mib.c
@@ -53,6 +53,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/jail.h>
 #include <sys/smp.h>
 #include <sys/unistd.h>
+#include <sys/vimage.h>
 
 SYSCTL_NODE(, 0,	  sysctl, CTLFLAG_RW, 0,
 	"Sysctl internal magic");
@@ -249,13 +250,13 @@ sysctl_hostname(SYSCTL_HANDLER_ARGS)
 		}
 	} else {
 		mtx_lock(&hostname_mtx);
-		bcopy(hostname, tmphostname, MAXHOSTNAMELEN);
+		bcopy(V_hostname, tmphostname, MAXHOSTNAMELEN);
 		mtx_unlock(&hostname_mtx);
 		error = sysctl_handle_string(oidp, tmphostname,
 		    sizeof tmphostname, req);
 		if (req->newptr != NULL && error == 0) {
 			mtx_lock(&hostname_mtx);
-			bcopy(tmphostname, hostname, MAXHOSTNAMELEN);
+			bcopy(tmphostname, V_hostname, MAXHOSTNAMELEN);
 			mtx_unlock(&hostname_mtx);
 		}
 	}