[src/trunk]: src/usr.sbin/pstat Print address of lower vnode of layered fs vn...

[enami <enami%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a4025220a449
branches:  trunk
changeset: 500522:a4025220a449
user:      enami <enami%NetBSD.org@localhost>
date:      Wed Dec 13 05:50:33 2000 +0000

description:
Print address of lower vnode of layered fs vnode.

diffstat:

 usr.sbin/pstat/pstat.c |  31 +++++++++++++++++++++++++++++--
 1 files changed, 29 insertions(+), 2 deletions(-)

diffs (73 lines):

diff -r e8a884e2a9a7 -r a4025220a449 usr.sbin/pstat/pstat.c
--- a/usr.sbin/pstat/pstat.c    Wed Dec 13 05:34:55 2000 +0000
+++ b/usr.sbin/pstat/pstat.c    Wed Dec 13 05:50:33 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pstat.c,v 1.55 2000/12/13 05:34:55 enami Exp $ */
+/*     $NetBSD: pstat.c,v 1.56 2000/12/13 05:50:33 enami Exp $ */
 
 /*-
  * Copyright (c) 1980, 1991, 1993, 1994
@@ -43,7 +43,7 @@
 #if 0
 static char sccsid[] = "@(#)pstat.c    8.16 (Berkeley) 5/9/95";
 #else
-__RCSID("$NetBSD: pstat.c,v 1.55 2000/12/13 05:34:55 enami Exp $");
+__RCSID("$NetBSD: pstat.c,v 1.56 2000/12/13 05:50:33 enami Exp $");
 #endif
 #endif /* not lint */
 
@@ -62,6 +62,7 @@
 #undef NFS
 #include <sys/uio.h>
 #include <sys/namei.h>
+#include <miscfs/genfs/layer.h>
 #include <miscfs/union/union.h>
 #undef _KERNEL
 #include <sys/stat.h>
@@ -167,6 +168,8 @@
        getmnt __P((struct mount *));
 struct e_vnode *
        kinfo_vnodes __P((int *));
+void   layer_header __P((void));
+int    layer_print __P((struct vnode *));
 struct e_vnode *
        loadvnodes __P((int *));
 int    main __P((int, char **));
@@ -324,6 +327,11 @@
                        } else if (FSTYPE_IS(mp, MOUNT_EXT2FS)) {
                                ufs_header();
                                vnode_fsprint = ext2fs_print;
+                       } else if (FSTYPE_IS(mp, MOUNT_NULL) ||
+                           FSTYPE_IS(mp, MOUNT_OVERLAY) ||
+                           FSTYPE_IS(mp, MOUNT_UMAP)) {
+                               layer_header();
+                               vnode_fsprint = layer_print;
                        } else if (FSTYPE_IS(mp, MOUNT_UNION)) {
                                union_header();
                                vnode_fsprint = union_print;
@@ -578,6 +586,25 @@
 }
 
 void
+layer_header()
+{
+
+       (void)printf("    LOWER");
+}
+
+int
+layer_print(vp)
+       struct vnode *vp;
+{
+       struct layer_node lnode, *lp = &lnode;
+
+       KGETRET(VTOLAYER(vp), &lnode, sizeof(lnode), "layer vnode");
+
+       (void)printf(" %8lx", (long)lp->layer_lowervp);
+       return (0);
+}
+
+void
 union_header()
 {