| /Linux-v4.19/fs/hpfs/ |
| D | super.c | 547 struct hpfs_super_block *superblock; in hpfs_fill_super() local
596 if (!(superblock = hpfs_map_sector(s, 16, &bh1, 1))) goto bail2; in hpfs_fill_super()
601 ||*/ le32_to_cpu(superblock->magic) != SB_MAGIC in hpfs_fill_super()
609 if (!sb_rdonly(s) && superblock->funcversion != 2 && superblock->funcversion != 3) { in hpfs_fill_super()
611 (int)superblock->version, (int)superblock->funcversion); in hpfs_fill_super()
623 sbi->sb_root = le32_to_cpu(superblock->root); in hpfs_fill_super()
624 sbi->sb_fs_size = le32_to_cpu(superblock->n_sectors); in hpfs_fill_super()
625 sbi->sb_bitmaps = le32_to_cpu(superblock->bitmaps); in hpfs_fill_super()
626 sbi->sb_dirband_start = le32_to_cpu(superblock->dir_band_start); in hpfs_fill_super()
627 sbi->sb_dirband_size = le32_to_cpu(superblock->n_dir_band); in hpfs_fill_super()
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| /Linux-v4.19/Documentation/filesystems/ |
| D | qnx6.txt | 35 The superblock contains all global information about the filesystem.
37 That serial number is used to identify the "active" superblock.
39 serial of the new master superblock is increased (old superblock serial + 1)
45 inactive superblock.
47 Each superblock holds a set of root inodes for the different filesystem
64 The Audi MMI 3G first superblock directly starts at byte 0.
65 Second superblock position can either be calculated from the superblock
70 0x1000 is the size reserved for each superblock - regardless of the
88 used. (scheme is the same as the one used for the superblock root nodes)
107 starting with the superblock longfilename root node pointers.
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| D | sysfs-tagging.txt | 26 Each sysfs superblock's kernfs_super_info contains an array void
28 kobj_nstype first mounts sysfs, a new superblock is created. It
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| D | ext2.txt | 14 Most defaults are determined by the filesystem superblock, and can be
48 sb=n Use alternate superblock at this location.
89 descriptor table stored in the block(s) immediately after the superblock.
103 The superblock contains all the information about the configuration of
104 the filing system. The primary copy of the superblock is stored at an
107 the superblock are stored in block groups throughout the filesystem.
113 superblock feature). The groups chosen are 0, 1 and powers of 3, 5 and 7.
115 The information in the superblock contains fields such as the total
126 All fields in the superblock (as in all other ext2 structures) are stored
216 filesystems. The superblock of the ext2 filesystem contains several
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| D | exofs.txt | 123 * The file system control block (AKA on-disk superblock) resides in an object
126 in-memory superblock structure at mount time. This object is created before
145 * Credentials are generated per object (inode and superblock) when they are
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| /Linux-v4.19/Documentation/filesystems/ext4/ondisk/ |
| D | blockgroup.rst | 32 The superblock will start at offset 1024 bytes, whichever block that
34 1024, then block 0 is marked in use and the superblock goes in block 1.
37 The ext4 driver primarily works with the superblock and the group
39 superblock and group descriptors are written to some of the block groups
71 superblock, group descriptors, data block bitmaps for groups 0-3, inode
75 files to be continuous on disk. Backup copies of the superblock and
103 the superblock is followed by a variable-length set of block group
104 descriptors. Instead, the superblock and a single block group descriptor
113 the field s\_first\_meta\_bg in the superblock will indicate the first
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| D | checksums.rst | 8 The desired checksum algorithm is indicated in the superblock, though as
27 of checksum. The checksum function is whatever the superblock describes
39 - The entire superblock up to the checksum field. The UUID lives inside
40 the superblock.
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| D | super.rst | 6 The superblock records various information about the enclosing
11 superblock and group descriptors are kept only in the groups whose group
15 The superblock checksum is calculated against the superblock structure,
18 The ext4 superblock is laid out as follows in
156 - Block group # of this superblock.
218 - UUID of journal superblock
308 MMP is a mechanism to record in the superblock which host and device
420 - Block groups containing superblock backups (if sparse\_super2)
483 The superblock state is some combination of the following:
500 The superblock error policy is one of the following:
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| D | journal.rst | 32 journal inode are replicated in the ext4 superblock. The journal itself
75 The journal superblock will be in the next full block after the
76 superblock.
139 - Journal superblock, v1.
141 - Journal superblock, v2.
153 The journal superblock is recorded as ``struct journal_superblock_s``,
171 - Common header identifying this as a superblock.
204 - The remaining fields are only valid in a v2 superblock.
254 - Checksum of the entire superblock, with this field set to zero.
538 the superblock advertises 64-bit block number support, or 4 bytes
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| D | special_inodes.rst | 37 … non-reserved inode. Usually this is the lost+found directory. See s\_first\_ino in the superblock.
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| D | bitmaps.rst | 26 descriptor points to the start of the table, and the superblock records
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| D | bigalloc.rst | 14 in the s\_log\_cluster\_size field in the superblock); from then on, the
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| /Linux-v4.19/fs/nilfs2/ |
| D | sysfs.h | 77 NILFS_DEV_ATTR_STRUCT(superblock);
139 NILFS_RO_ATTR(superblock, name)
141 NILFS_RW_ATTR(superblock, name)
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| /Linux-v4.19/Documentation/device-mapper/ |
| D | dm-integrity.txt | 26 the device. But it will only format the device if the superblock contains
27 zeroes. If the superblock is neither valid nor zeroed, the dm-integrity
31 1. overwrite the superblock with zeroes
35 4. read the "provided_data_sectors" value from the superblock
75 superblock is used.
80 the superblock is used.
160 * superblock (4kiB)
178 * integrity tag (the size is specified in the superblock)
203 in the superblock.
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| /Linux-v4.19/Documentation/ABI/testing/ |
| D | sysfs-fs-nilfs2 | 60 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time
67 What: /sys/fs/nilfs2/<device>/superblock/sb_write_time_secs
73 What: /sys/fs/nilfs2/<device>/superblock/sb_write_count
79 What: /sys/fs/nilfs2/<device>/superblock/sb_update_frequency
83 Show/Set interval of periodical update of superblock
86 What: /sys/fs/nilfs2/<device>/superblock/README
90 Describe attributes of /sys/fs/nilfs2/<device>/superblock
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| /Linux-v4.19/scripts/gdb/linux/ |
| D | proc.py | 183 superblock = vfs['mnt']['mnt_sb']
184 fstype = superblock['s_type']['name'].string()
185 s_flags = int(superblock['s_flags'])
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| /Linux-v4.19/drivers/md/persistent-data/ |
| D | dm-space-map-metadata.h | 35 dm_block_t superblock);
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| D | dm-transaction-manager.h | 51 int dm_tm_commit(struct dm_transaction_manager *tm, struct dm_block *superblock);
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| D | dm-space-map-metadata.c | 764 dm_block_t superblock) in dm_sm_metadata_create() argument
770 smm->begin = superblock + 1; in dm_sm_metadata_create()
792 for (i = superblock; !r && i < smm->begin; i++) in dm_sm_metadata_create()
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| /Linux-v4.19/fs/befs/ |
| D | TODO | 13 representations of the superblock and inode.
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| D | ChangeLog | 79 * Abbandoned silly checks for a NULL superblock pointer in debug.c. [WD]
167 superblock type, rather than struct super_block. This is for
178 * Added functions to get the private superblock and inode structures from
244 * Fixed a problem with reading the superblock on devices with large sector
375 very end of befs_read_super(), after we are done with the disk superblock.
396 * Removed superblock locking calls in befs_read_super(). In 2.4, the VFS
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| /Linux-v4.19/fs/btrfs/ |
| D | check-integrity.c | 2181 struct btrfsic_block *const superblock, in btrfsic_process_written_superblock() argument
2187 superblock->generation = btrfs_super_generation(super_hdr); in btrfsic_process_written_superblock()
2188 if (!(superblock->generation > state->max_superblock_generation || in btrfsic_process_written_superblock()
2192 superblock->logical_bytenr, in btrfsic_process_written_superblock()
2193 superblock->dev_state->name, in btrfsic_process_written_superblock()
2194 superblock->dev_bytenr, superblock->mirror_num, in btrfsic_process_written_superblock()
2200 superblock->logical_bytenr, in btrfsic_process_written_superblock()
2201 superblock->dev_state->name, in btrfsic_process_written_superblock()
2202 superblock->dev_bytenr, superblock->mirror_num, in btrfsic_process_written_superblock()
2208 state->latest_superblock = superblock; in btrfsic_process_written_superblock()
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| /Linux-v4.19/fs/cramfs/ |
| D | README | 13 <superblock>
17 <superblock>: struct cramfs_super (see cramfs_fs.h).
120 The superblock ought to indicate the block size that the fs was
149 data, only the superblock, inodes and block pointers.
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| /Linux-v4.19/Documentation/admin-guide/ |
| D | md.rst | 84 superblock can be autodetected and run at boot time.
118 The md driver can support a variety of different superblock formats.
119 Currently, it supports superblock formats ``0.90.0`` and the ``md-1`` format
122 The kernel will autodetect which format superblock is being used.
125 reasons - it is the original superblock format.
128 General Rules - apply for all superblock formats
146 version number. The major version number selects which superblock
149 superblock.
158 appropriate superblock written to them, and then be passed in with
165 Specific Rules that apply to format-0 super block arrays, and arrays with no superblock (non-persis…
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| /Linux-v4.19/fs/freevxfs/ |
| D | Kconfig | 10 data endianess and/or superblock offset. The vxfs module has been
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