From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- fs/ocfs2/ocfs1_fs_compat.h | 94 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 fs/ocfs2/ocfs1_fs_compat.h (limited to 'fs/ocfs2/ocfs1_fs_compat.h') diff --git a/fs/ocfs2/ocfs1_fs_compat.h b/fs/ocfs2/ocfs1_fs_compat.h new file mode 100644 index 000000000..6dbcf3d46 --- /dev/null +++ b/fs/ocfs2/ocfs1_fs_compat.h @@ -0,0 +1,94 @@ +/* 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 128 +#define OCFS1_MAX_MOUNT_POINT_LEN 128 +#define OCFS1_MAX_VOL_ID_LENGTH 16 +#define OCFS1_MAX_VOL_LABEL_LEN 64 +#define OCFS1_MAX_CLUSTER_NAME_LEN 64 + +#define OCFS1_MAJOR_VERSION (2) +#define OCFS1_MINOR_VERSION (0) +#define OCFS1_VOLUME_SIGNATURE "OracleCFS" + +/* + * OCFS1 superblock. Lives at sector 0. + */ +struct ocfs1_vol_disk_hdr +{ +/*00*/ __u32 minor_version; + __u32 major_version; +/*08*/ __u8 signature[OCFS1_MAX_VOL_SIGNATURE_LEN]; +/*88*/ __u8 mount_point[OCFS1_MAX_MOUNT_POINT_LEN]; +/*108*/ __u64 serial_num; +/*110*/ __u64 device_size; + __u64 start_off; +/*120*/ __u64 bitmap_off; + __u64 publ_off; +/*130*/ __u64 vote_off; + __u64 root_bitmap_off; +/*140*/ __u64 data_start_off; + __u64 root_bitmap_size; +/*150*/ __u64 root_off; + __u64 root_size; +/*160*/ __u64 cluster_size; + __u64 num_nodes; +/*170*/ __u64 num_clusters; + __u64 dir_node_size; +/*180*/ __u64 file_node_size; + __u64 internal_off; +/*190*/ __u64 node_cfg_off; + __u64 node_cfg_size; +/*1A0*/ __u64 new_cfg_off; + __u32 prot_bits; + __s32 excl_mount; +/*1B0*/ +}; + + +struct ocfs1_disk_lock +{ +/*00*/ __u32 curr_master; + __u8 file_lock; + __u8 compat_pad[3]; /* Not in original definition. Used to + make the already existing alignment + explicit */ + __u64 last_write_time; +/*10*/ __u64 last_read_time; + __u32 writer_node_num; + __u32 reader_node_num; +/*20*/ __u64 oin_node_map; + __u64 dlock_seq_num; +/*30*/ +}; + +/* + * OCFS1 volume label. Lives at sector 1. + */ +struct ocfs1_vol_label +{ +/*00*/ struct ocfs1_disk_lock disk_lock; +/*30*/ __u8 label[OCFS1_MAX_VOL_LABEL_LEN]; +/*70*/ __u16 label_len; +/*72*/ __u8 vol_id[OCFS1_MAX_VOL_ID_LENGTH]; +/*82*/ __u16 vol_id_len; +/*84*/ __u8 cluster_name[OCFS1_MAX_CLUSTER_NAME_LEN]; +/*A4*/ __u16 cluster_name_len; +/*A6*/ +}; + + +#endif /* _OCFS1_FS_COMPAT_H */ + -- cgit v1.2.3