^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) International Business Machines Corp., 2000-2003
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #ifndef _H_JFS_SUPERBLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #define _H_JFS_SUPERBLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/uuid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * make the magic number something a human could read
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define JFS_MAGIC "JFS1" /* Magic word */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define JFS_VERSION 2 /* Version number: Version 2 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define LV_NAME_SIZE 11 /* MUST BE 11 for OS/2 boot sector */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * aggregate superblock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * The name superblock is too close to super_block, so the name has been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * changed to jfs_superblock. The utilities are still using the old name.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct jfs_superblock {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) char s_magic[4]; /* 4: magic number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) __le32 s_version; /* 4: version number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) __le64 s_size; /* 8: aggregate size in hardware/LVM blocks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * VFS: number of blocks
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) __le32 s_bsize; /* 4: aggregate block size in bytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * VFS: fragment size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) __le16 s_l2bsize; /* 2: log2 of s_bsize */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) __le16 s_l2bfactor; /* 2: log2(s_bsize/hardware block size) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) __le32 s_pbsize; /* 4: hardware/LVM block size in bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) __le16 s_l2pbsize; /* 2: log2 of s_pbsize */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) __le16 pad; /* 2: padding necessary for alignment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) __le32 s_agsize; /* 4: allocation group size in aggr. blocks */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) __le32 s_flag; /* 4: aggregate attributes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * see jfs_filsys.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) __le32 s_state; /* 4: mount/unmount/recovery state:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * see jfs_filsys.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) __le32 s_compress; /* 4: > 0 if data compression */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) pxd_t s_ait2; /* 8: first extent of secondary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * aggregate inode table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) pxd_t s_aim2; /* 8: first extent of secondary
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * aggregate inode map
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) __le32 s_logdev; /* 4: device address of log */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) __le32 s_logserial; /* 4: log serial number at aggregate mount */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) pxd_t s_logpxd; /* 8: inline log extent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) pxd_t s_fsckpxd; /* 8: inline fsck work space extent */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) struct timestruc_t s_time; /* 8: time last updated */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) __le32 s_fsckloglen; /* 4: Number of filesystem blocks reserved for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * the fsck service log.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * N.B. These blocks are divided among the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * versions kept. This is not a per
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * version size.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * N.B. These blocks are included in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * length field of s_fsckpxd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) s8 s_fscklog; /* 1: which fsck service log is most recent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * 0 => no service log data yet
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * 1 => the first one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * 2 => the 2nd one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) char s_fpack[11]; /* 11: file system volume name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * N.B. This must be 11 bytes to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * conform with the OS/2 BootSector
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * requirements
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * Only used when s_version is 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* extendfs() parameter under s_state & FM_EXTENDFS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) __le64 s_xsize; /* 8: extendfs s_size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) pxd_t s_xfsckpxd; /* 8: extendfs fsckpxd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) pxd_t s_xlogpxd; /* 8: extendfs logpxd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) uuid_t s_uuid; /* 16: 128-bit uuid for volume */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) char s_label[16]; /* 16: volume label */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) uuid_t s_loguuid; /* 16: 128-bit uuid for log device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) extern int readSuper(struct super_block *, struct buffer_head **);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) extern int updateSuper(struct super_block *, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) __printf(2, 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) extern void jfs_error(struct super_block *, const char *, ...);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) extern int jfs_mount(struct super_block *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) extern int jfs_mount_rw(struct super_block *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) extern int jfs_umount(struct super_block *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) extern int jfs_umount_rw(struct super_block *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) extern int jfs_extendfs(struct super_block *, s64, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) extern struct task_struct *jfsIOthread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) extern struct task_struct *jfsSyncThread;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #endif /*_H_JFS_SUPERBLOCK */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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