linux/fs/ocfs2/ocfs1_fs_compat.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * ocfs1_fs_compat.h
 *
 * OCFS1 volume header definitions.  OCFS2 creates valid but unmountable
 * OCFS1 volume headers on the first two sectors of an OCFS2 volume.
 * This allows an OCFS1 volume to see the partition and cleanly fail to
 * mount it.
 *
 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 */

#ifndef _OCFS1_FS_COMPAT_H
#define _OCFS1_FS_COMPAT_H

#define OCFS1_MAX_VOL_SIGNATURE_LEN …
#define OCFS1_MAX_MOUNT_POINT_LEN …
#define OCFS1_MAX_VOL_ID_LENGTH …
#define OCFS1_MAX_VOL_LABEL_LEN …
#define OCFS1_MAX_CLUSTER_NAME_LEN …

#define OCFS1_MAJOR_VERSION …
#define OCFS1_MINOR_VERSION …
#define OCFS1_VOLUME_SIGNATURE …

/*
 * OCFS1 superblock.  Lives at sector 0.
 */
struct ocfs1_vol_disk_hdr
{ … };


struct ocfs1_disk_lock
{ … };

/*
 * OCFS1 volume label.  Lives at sector 1.
 */
struct ocfs1_vol_label
{ … };


#endif /* _OCFS1_FS_COMPAT_H */