Introduce a new virtualization container, provisionally named vprocg, to hold

virtualized instances of hostname and domainname, as well as a new top-level
virtualization struct vimage, which holds pointers to struct vnet and struct
vprocg.  Struct vprocg is likely to become replaced in the near future with
a new jail management API import.

As a consequence of this change, change struct ucred to point to a struct
vimage, instead of directly pointing to a vnet.

Merge vnet / vimage / ucred refcounting infrastructure from p4 / vimage
branch.

Permit kldload / kldunload operations to be executed only from the default
vimage context.

This change should have no functional impact on nooptions VIMAGE kernel
builds.

Reviewed by:	bz
Approved by:	julian (mentor)

1 files changed, 3 insertions, 2 deletions

diff --git a/sys/nlm/nlm_advlock.c b/sys/nlm/nlm_advlock.c
index 2c1f1a6..a2c62f0 100644
--- a/sys/nlm/nlm_advlock.c
+++ b/sys/nlm/nlm_advlock.c
@@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$");
 #include <sys/syslog.h>
 #include <sys/systm.h>
 #include <sys/unistd.h>
+#include <sys/vimage.h>
 #include <sys/vnode.h>
 
 #include <rpc/rpcclnt.h>
@@ -1222,12 +1223,12 @@ nlm_init_lock(struct flock *fl, int flags, int svid,
 	}
 
 	mtx_lock(&hostname_mtx);
-	snprintf(oh_space, 32, "%d@%s", svid, hostname);
+	snprintf(oh_space, 32, "%d@%s", svid, G_hostname);
 	mtx_unlock(&hostname_mtx);
 	oh_len = strlen(oh_space);
 
 	memset(lock, 0, sizeof(*lock));
-	lock->caller_name = hostname;
+	lock->caller_name = G_hostname;
 	lock->fh.n_len = fhlen;
 	lock->fh.n_bytes = fh;
 	lock->oh.n_len = oh_len;