Module Name: src
Committed By: hannken
Date: Mon Mar 6 10:10:07 UTC 2017
Modified Files:
src/sys/fs/union: union_vfsops.c
src/sys/miscfs/nullfs: null_vfsops.c
src/sys/miscfs/overlay: overlay_vfsops.c
src/sys/miscfs/umapfs: umap_vfsops.c
src/sys/sys: mount.h param.h
Log Message:
Add field "mnt_lower" to "struct mount" to track the file system
a layered file system is mounted on.
Welcome to 7.99.65
To generate a diff of this commit:
cvs rdiff -u -r1.76 -r1.77 src/sys/fs/union/union_vfsops.c
cvs rdiff -u -r1.91 -r1.92 src/sys/miscfs/nullfs/null_vfsops.c
cvs rdiff -u -r1.64 -r1.65 src/sys/miscfs/overlay/overlay_vfsops.c
cvs rdiff -u -r1.96 -r1.97 src/sys/miscfs/umapfs/umap_vfsops.c
cvs rdiff -u -r1.220 -r1.221 src/sys/sys/mount.h
cvs rdiff -u -r1.531 -r1.532 src/sys/sys/param.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/fs/union/union_vfsops.c
diff -u src/sys/fs/union/union_vfsops.c:1.76 src/sys/fs/union/union_vfsops.c:1.77
--- src/sys/fs/union/union_vfsops.c:1.76 Fri Feb 17 08:31:25 2017
+++ src/sys/fs/union/union_vfsops.c Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: union_vfsops.c,v 1.76 2017/02/17 08:31:25 hannken Exp $ */
+/* $NetBSD: union_vfsops.c,v 1.77 2017/03/06 10:10:07 hannken Exp $ */
/*
* Copyright (c) 1994 The Regents of the University of California.
@@ -77,7 +77,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: union_vfsops.c,v 1.76 2017/02/17 08:31:25 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: union_vfsops.c,v 1.77 2017/03/06 10:10:07 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -252,6 +252,8 @@ union_mount(struct mount *mp, const char
if (error)
goto bad;
+ mp->mnt_lower = um->um_uppervp->v_mount;
+
switch (um->um_op) {
case UNMNT_ABOVE:
cp = "<above>:";
Index: src/sys/miscfs/nullfs/null_vfsops.c
diff -u src/sys/miscfs/nullfs/null_vfsops.c:1.91 src/sys/miscfs/nullfs/null_vfsops.c:1.92
--- src/sys/miscfs/nullfs/null_vfsops.c:1.91 Fri Feb 17 08:31:25 2017
+++ src/sys/miscfs/nullfs/null_vfsops.c Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: null_vfsops.c,v 1.91 2017/02/17 08:31:25 hannken Exp $ */
+/* $NetBSD: null_vfsops.c,v 1.92 2017/03/06 10:10:07 hannken Exp $ */
/*
* Copyright (c) 1999 National Aeronautics & Space Administration
@@ -76,7 +76,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: null_vfsops.c,v 1.91 2017/02/17 08:31:25 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: null_vfsops.c,v 1.92 2017/03/06 10:10:07 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -170,6 +170,7 @@ nullfs_mount(struct mount *mp, const cha
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
vp->v_vflag |= VV_ROOT;
nmp->nullm_rootvp = vp;
+ mp->mnt_lower = nmp->nullm_vfs;
mp->mnt_iflag |= IMNT_MPSAFE;
VOP_UNLOCK(vp);
Index: src/sys/miscfs/overlay/overlay_vfsops.c
diff -u src/sys/miscfs/overlay/overlay_vfsops.c:1.64 src/sys/miscfs/overlay/overlay_vfsops.c:1.65
--- src/sys/miscfs/overlay/overlay_vfsops.c:1.64 Fri Feb 17 08:31:25 2017
+++ src/sys/miscfs/overlay/overlay_vfsops.c Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: overlay_vfsops.c,v 1.64 2017/02/17 08:31:25 hannken Exp $ */
+/* $NetBSD: overlay_vfsops.c,v 1.65 2017/03/06 10:10:07 hannken Exp $ */
/*
* Copyright (c) 1999, 2000 National Aeronautics & Space Administration
@@ -74,7 +74,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: overlay_vfsops.c,v 1.64 2017/02/17 08:31:25 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: overlay_vfsops.c,v 1.65 2017/03/06 10:10:07 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -185,6 +185,7 @@ ov_mount(struct mount *mp, const char *p
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
vp->v_vflag |= VV_ROOT;
nmp->ovm_rootvp = vp;
+ mp->mnt_lower = nmp->ovm_vfs;
VOP_UNLOCK(vp);
error = set_statvfs_info(path, UIO_USERSPACE, args->la.target,
Index: src/sys/miscfs/umapfs/umap_vfsops.c
diff -u src/sys/miscfs/umapfs/umap_vfsops.c:1.96 src/sys/miscfs/umapfs/umap_vfsops.c:1.97
--- src/sys/miscfs/umapfs/umap_vfsops.c:1.96 Fri Feb 17 08:31:25 2017
+++ src/sys/miscfs/umapfs/umap_vfsops.c Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: umap_vfsops.c,v 1.96 2017/02/17 08:31:25 hannken Exp $ */
+/* $NetBSD: umap_vfsops.c,v 1.97 2017/03/06 10:10:07 hannken Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -41,7 +41,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: umap_vfsops.c,v 1.96 2017/02/17 08:31:25 hannken Exp $");
+__KERNEL_RCSID(0, "$NetBSD: umap_vfsops.c,v 1.97 2017/03/06 10:10:07 hannken Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -220,6 +220,7 @@ umapfs_mount(struct mount *mp, const cha
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
vp->v_vflag |= VV_ROOT;
amp->umapm_rootvp = vp;
+ mp->mnt_lower = amp->umapm_vfs;
VOP_UNLOCK(vp);
error = set_statvfs_info(path, UIO_USERSPACE, args->umap_target,
Index: src/sys/sys/mount.h
diff -u src/sys/sys/mount.h:1.220 src/sys/sys/mount.h:1.221
--- src/sys/sys/mount.h:1.220 Wed Jan 11 09:07:57 2017
+++ src/sys/sys/mount.h Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: mount.h,v 1.220 2017/01/11 09:07:57 hannken Exp $ */
+/* $NetBSD: mount.h,v 1.221 2017/03/06 10:10:07 hannken Exp $ */
/*
* Copyright (c) 1989, 1991, 1993
@@ -113,6 +113,7 @@ struct mount {
TAILQ_HEAD(, vnode_impl) mnt_vnodelist; /* list of vnodes this mount */
struct vfsops *mnt_op; /* operations on fs */
struct vnode *mnt_vnodecovered; /* vnode we mounted on */
+ struct mount *mnt_lower; /* fs mounted on */
int mnt_synclist_slot; /* synclist slot index */
void *mnt_transinfo; /* for FS-internal use */
void *mnt_data; /* private data */
Index: src/sys/sys/param.h
diff -u src/sys/sys/param.h:1.531 src/sys/sys/param.h:1.532
--- src/sys/sys/param.h:1.531 Wed Mar 1 10:44:47 2017
+++ src/sys/sys/param.h Mon Mar 6 10:10:07 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: param.h,v 1.531 2017/03/01 10:44:47 hannken Exp $ */
+/* $NetBSD: param.h,v 1.532 2017/03/06 10:10:07 hannken Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
@@ -67,7 +67,7 @@
* 2.99.9 (299000900)
*/
-#define __NetBSD_Version__ 799006400 /* NetBSD 7.99.64 */
+#define __NetBSD_Version__ 799006500 /* NetBSD 7.99.65 */
#define __NetBSD_Prereq__(M,m,p) (((((M) * 100000000) + \
(m) * 1000000) + (p) * 100) <= __NetBSD_Version__)
