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diff --git a/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.h b/sys/gnu/fs/xfs/FreeBSD/xfs_mountops.h
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+/*-
+ * Copyright (c) 2001 Alexander Kabaev
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef _XFS_XFS_H_
+#define _XFS_XFS_H_
+
+#define XFSFS_VMAJOR 0
+#define XFS_VMINOR 1
+#define XFS_VERSION ((XFS_VMAJOR << 16) | XFS_VMINOR)
+#define XFS_NAME "xfs"
+
+#ifdef _KERNEL
+
+struct xfsmount {
+ struct xfs_mount_args m_args; /* Mount parameters */
+ struct mount * m_mp; /* Back pointer */
+ xfs_vfs_t m_vfs; /* SHOULD BE FIRST */
+};
+
+#define XFSTOMNT(xmp) ((xmp)->m_mp)
+#define XFSTOVFS(xmp) (&(xmp)->m_vfs)
+
+#define MNTTOXFS(mp) ((struct xfsmount *)((mp)->mnt_data))
+#define MNTTOVFS(mp) XFSTOVFS(MNTTOXFS(mp))
+
+#define VFSTOMNT(vfsp) (vfsp)->vfs_mp
+#define VFSTOXFS(vfsp) MNTTOXFS(VFSTOMNT(vfsp))
+
+struct xfsmount *xfsmount_allocate(struct mount *mp);
+void xfsmount_deallocate(struct xfsmount *xmp);
+
+#endif /* _KERNEL */
+
+#endif /* _XFS_XFS_H*/
+
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