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ffs_snapshot(): return an error if the node is an invalid snapshot.

This commit is contained in:
hannken 2011-04-23 08:23:52 +00:00
parent 36046fc79f
commit 7c9d6febb5
1 changed files with 5 additions and 3 deletions
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8
sys/ufs/ffs/ffs_snapshot.c
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@ -1,4 +1,4 @@
/* $NetBSD: ffs_snapshot.c,v 1.112 2011/04/18 07:36:13 hannken Exp $ */
/* $NetBSD: ffs_snapshot.c,v 1.113 2011/04/23 08:23:52 hannken Exp $ */
/*
* Copyright 2000 Marshall Kirk McKusick. All Rights Reserved.
@ -38,7 +38,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ffs_snapshot.c,v 1.112 2011/04/18 07:36:13 hannken Exp $");
__KERNEL_RCSID(0, "$NetBSD: ffs_snapshot.c,v 1.113 2011/04/23 08:23:52 hannken Exp $");
#if defined(_KERNEL_OPT)
#include "opt_ffs.h"
@ -197,7 +197,9 @@ ffs_snapshot(struct mount *mp, struct vnode *vp, struct timespec *ctime)
/*
* If the vnode already is a snapshot, return.
*/
if ((VTOI(vp)->i_flags & (SF_SNAPSHOT | SF_SNAPINVAL)) == SF_SNAPSHOT) {
if ((VTOI(vp)->i_flags & SF_SNAPSHOT)) {
if ((VTOI(vp)->i_flags & SF_SNAPINVAL))
return EINVAL;
if (ctime) {
ctime->tv_sec = DIP(VTOI(vp), mtime);
ctime->tv_nsec = DIP(VTOI(vp), mtimensec);