Author: kib
Date: Fri Apr 9 08:45:30 2010
New Revision: 206414
URL: http://svn.freebsd.org/changeset/base/206414
Log:
MFC r206094:
Supply default implementation of VOP_RENAME() that does neccessary
unlocks and unreferences for argument vnodes, as expected by
kern_renameat(9), and returns EOPNOTSUPP. This fixes locks and
reference leaks when rename is attempted on fs that does not
implement rename.
Modified:
stable/8/sys/kern/vfs_default.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/kern/vfs_default.c
==============================================================================
--- stable/8/sys/kern/vfs_default.c Fri Apr 9 08:39:28 2010
(r206413)
+++ stable/8/sys/kern/vfs_default.c Fri Apr 9 08:45:30 2010
(r206414)
@@ -67,6 +67,7 @@ __FBSDID("$FreeBSD$");
#include <vm/vnode_pager.h>
static int vop_nolookup(struct vop_lookup_args *);
+static int vop_norename(struct vop_rename_args *);
static int vop_nostrategy(struct vop_strategy_args *);
static int get_next_dirent(struct vnode *vp, struct dirent **dpp,
char *dirbuf, int dirbuflen, off_t *off,
@@ -113,6 +114,7 @@ struct vop_vector default_vnodeops = {
.vop_poll = vop_nopoll,
.vop_putpages = vop_stdputpages,
.vop_readlink = VOP_EINVAL,
+ .vop_rename = vop_norename,
.vop_revoke = VOP_PANIC,
.vop_strategy = vop_nostrategy,
.vop_unlock = vop_stdunlock,
@@ -206,6 +208,20 @@ vop_nolookup(ap)
}
/*
+ * vop_norename:
+ *
+ * Handle unlock and reference counting for arguments of vop_rename
+ * for filesystems that do not implement rename operation.
+ */
+static int
+vop_norename(struct vop_rename_args *ap)
+{
+
+ vop_rename_fail(ap);
+ return (EOPNOTSUPP);
+}
+
+/*
* vop_nostrategy:
*
* Strategy routine for VFS devices that have none.
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