prefacio
Un archivo corresponde a un inodo, que almacena la información de metadatos del archivo.
tiempo de creación, tiempo de actualización, tiempo de acceso, permisos de lectura y escritura, etc.
inodo es una parte importante de vfs
Echemos un vistazo a algunos de los procesos de creación de un nuevo inodo.
Estamos aquí basados en linux-4.10 + ext4 fs
depurar nuevo inodo
Ejecute el comando de la siguiente manera para crear un nuevo archivo + conservar el contenido del archivo
echo "1" >> 1.txtCuando este proceso abre la llamada del sistema, encontrará que no hay 1.txt y creará un nuevo archivo dado
El inodo para crear un archivo se divide principalmente en varias partes, una parte es para crear un nuevo inodo, una parte es para inicializar un inodo y una parte es para registrarse con super_block/group
nuevo inodo
Los nuevos inodos generalmente se basan en super_block.s_op.alloc_inode
La implementación específica final se basa en la asignación de losa ext4_inode_info
Después de crear el inodo, será igual que super_block.s_inodes
Inicialice el inodo y establezca la asociación con el grupo
Inicialice el usuario, el grupo y el modo del inodo
Encuentre un grupo adecuado y encuentre una ubicación de inodo disponible adecuada
Encuentre una ubicación de inodo disponible adecuada del grupo objetivo
Registrar la posición en el grupo para el inodo actual
Calcule el número de inodo según grupo e ino, es una conversión lineal simple en ext4
Actualice el tiempo de creación del inodo, el tiempo de modificación, el tiempo de acceso, etc.
Inicializar otros campos de ext_inode_info
La forma de encontrar el grupo.
Busque hacia atrás desde el grupo del directorio principal, como máximo flxex_size grupos hacia atrás, y encuentre un grupo disponible Volver
En la mayoría de los casos, puede encontrar la ubicación del inodo disponible en el grupo del directorio principal y devolverlo directamente, como la situación aquí
En segundo lugar, busque el grupo del directorio principal, si hay un inodo disponible y, de ser así, regrese directamente
En segundo lugar, se inicializa como (grupo + ino del directorio principal) para calcular el grupo y luego buscar los grupos disponibles en incrementos de 2^0, 2^1, 2^2,...
Finalmente, según el grupo del directorio principal, busque linealmente para encontrar el grupo disponible 
Para lidiar con escenarios concurrentes, el lugar donde la capa externa inicializa el inodo y la lógica relacionada de reintento de grupo
Consultar el ino disponible en el grupo
Aquí se basa en un determinado grupo, busque el inode_bitmap donde se encuentra el grupo y consulte el ino disponible
Y realice una actualización atómica, si la actualización falla, intente nuevamente
Ver información del sistema de archivos
El directorio actual es "/dir", de arriba podemos ver que el 1.txt que creamos está en el grupo 16
Crear un nuevo 2.txt
16 * 2040 = 32640
El primer inodo es "." El número de inodo es 32641
El segundo inodo es "Test04Getcwd" número de inodo 32642
El tercer inodo es "1.txt" número de inodo 32643
El cuarto inodo es "2.txt" número de inodo 32644
(initramfs) ls -ail
2 drwxr-xr-x 3 1024 ..
32641 drwxr-xr-x 2 1024 .
32642 -rwxr-xr-x 1 8768 Test04Getcwd
32644 -rw-r--r-- 1 2 2.txt
32643 -rw-r--r-- 1 2 1.txtVerifique /dev/sda a través de dumpe2fs, observamos principalmente el grupo 16 aquí
Puede ver que cada grupo puede asignar 2040 inodos
Aquí el grupo 16 ha asignado cuatro, se pueden usar los 2036 inodos restantes y el siguiente número de inodo disponible es 32645
Esto es exactamente lo mismo que el código kernel depurado anteriormente, y la salida de ls
(initramfs) dumpe2fs /dev/sda
dumpe2fs 1.42.13 (17-May-2015)
Filesystem volume name: <none>
Last mounted on: /jerry
Filesystem UUID: f58458d9-c47a-418e-b33e-5a7167c7fe06
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean with errors
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 89760
Block count: 358400
Reserved block count: 17920
Free blocks: 335470
Free inodes: 89719
First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 256
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2040
Inode blocks per group: 255
Flex block group size: 16
Group 16: (Blocks 131073-139264) [ITABLE_ZEROED]
Checksum 0xe0a5, unused inodes 2036
Block bitmap at 131073 (+0), Inode bitmap at 131089 (+16)
Inode table at 131105-131359 (+32)
4080 free blocks, 2036 free inodes, 0 directories, 2036 unused inodes
Free blocks: 135186-139264
Free inodes: 32645-34680Enumere la salida completa de dumpe2fs
(initramfs) dumpe2fs /dev/sda
dumpe2fs 1.42.13 (17-May-2015)
Filesystem volume name: <none>
Last mounted on: /jerry
Filesystem UUID: f58458d9-c47a-418e-b33e-5a7167c7fe06
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean with errors
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 89760
Block count: 358400
Reserved block count: 17920
Free blocks: 335470
Free inodes: 89719
First block: 1
Block size: 1024
Fragment size: 1024
Reserved GDT blocks: 256
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2040
Inode blocks per group: 255
Flex block group size: 16
Filesystem created: Sat Nov 26 08:05:43 2022
Last mount time: Sat Dec 10 02:43:02 2022
Last write time: Sat Dec 10 02:46:53 2022
Mount count: 12
Maximum mount count: -1
Last checked: Sat Nov 26 08:05:43 2022
Check interval: 0 (<none>)
Lifetime writes: 13 MB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group unknown)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 28899bb3-0466-4d5d-8593-267dbc58e80f
Journal backup: inode blocks
FS Error count: 5
First error time: Sat Dec 3 03:30:43 2022
First error function: ext4_mb_generate_buddy
First error line #: 758
First error inode #: 0
First error block #: 0
Last error time: Sat Dec 10 02:46:53 2022
Last error function: __ext4_new_inode
Last error line #: 1066
Last error inode #: 0
Last error block #: 0
Journal features: (none)
Journal size: 8M
Journal length: 8192
Journal sequence: 0x0000002f
Journal start: 1
Group 0: (Blocks 1-8192) [ITABLE_ZEROED]
Checksum 0x6796, unused inodes 2002
Primary superblock at 1, Group descriptors at 2-3
Reserved GDT blocks at 4-259
Block bitmap at 260 (+259), Inode bitmap at 276 (+275)
Inode table at 292-546 (+291)
3806 free blocks, 2001 free inodes, 3 directories, 2002 unused inodes
Free blocks: 4387-8192
Free inodes: 38-2040
Group 1: (Blocks 8193-16384) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0x89d9, unused inodes 2040
Backup superblock at 8193, Group descriptors at 8194-8195
Reserved GDT blocks at 8196-8451
Block bitmap at 261 (bg #0 + 260), Inode bitmap at 277 (bg #0 + 276)
Inode table at 547-801 (bg #0 + 546)
6866 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 8506, 9507-9728, 9730-16384
Free inodes: 2041-4080
Group 2: (Blocks 16385-24576) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xd37e, unused inodes 2040
Block bitmap at 262 (bg #0 + 261), Inode bitmap at 278 (bg #0 + 277)
Inode table at 802-1056 (bg #0 + 801)
8003 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 16385-24576
Free inodes: 4081-6120
Group 3: (Blocks 24577-32768) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xc322, unused inodes 2040
Backup superblock at 24577, Group descriptors at 24578-24579
Reserved GDT blocks at 24580-24835
Block bitmap at 263 (bg #0 + 262), Inode bitmap at 279 (bg #0 + 278)
Inode table at 1057-1311 (bg #0 + 1056)
7871 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 24836-32768
Free inodes: 6121-8160
Group 4: (Blocks 32769-40960) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xd93c, unused inodes 2040
Block bitmap at 264 (bg #0 + 263), Inode bitmap at 280 (bg #0 + 279)
Inode table at 1312-1566 (bg #0 + 1311)
8168 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 32780-32800, 32812-32817, 32819-33280, 33282-40960
Free inodes: 8161-10200
Group 5: (Blocks 40961-49152) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xa0c7, unused inodes 2040
Backup superblock at 40961, Group descriptors at 40962-40963
Reserved GDT blocks at 40964-41219
Block bitmap at 265 (bg #0 + 264), Inode bitmap at 281 (bg #0 + 280)
Inode table at 1567-1821 (bg #0 + 1566)
7933 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 41220-49152
Free inodes: 10201-12240
Group 6: (Blocks 49153-57344) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x8ade, unused inodes 2040
Block bitmap at 266 (bg #0 + 265), Inode bitmap at 282 (bg #0 + 281)
Inode table at 1822-2076 (bg #0 + 1821)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 49153-57344
Free inodes: 12241-14280
Group 7: (Blocks 57345-65536) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xd27b, unused inodes 2040
Backup superblock at 57345, Group descriptors at 57346-57347
Reserved GDT blocks at 57348-57603
Block bitmap at 267 (bg #0 + 266), Inode bitmap at 283 (bg #0 + 282)
Inode table at 2077-2331 (bg #0 + 2076)
7933 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 57604-65536
Free inodes: 14281-16320
Group 8: (Blocks 65537-73728) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5b83, unused inodes 2040
Block bitmap at 268 (bg #0 + 267), Inode bitmap at 284 (bg #0 + 283)
Inode table at 2332-2586 (bg #0 + 2331)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 65537-73728
Free inodes: 16321-18360
Group 9: (Blocks 73729-81920) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x3caf, unused inodes 2040
Backup superblock at 73729, Group descriptors at 73730-73731
Reserved GDT blocks at 73732-73987
Block bitmap at 269 (bg #0 + 268), Inode bitmap at 285 (bg #0 + 284)
Inode table at 2587-2841 (bg #0 + 2586)
7933 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 73988-81920
Free inodes: 18361-20400
Group 10: (Blocks 81921-90112) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x16b6, unused inodes 2040
Block bitmap at 270 (bg #0 + 269), Inode bitmap at 286 (bg #0 + 285)
Inode table at 2842-3096 (bg #0 + 2841)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 81921-90112
Free inodes: 20401-22440
Group 11: (Blocks 90113-98304) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xf64b, unused inodes 2040
Block bitmap at 271 (bg #0 + 270), Inode bitmap at 287 (bg #0 + 286)
Inode table at 3097-3351 (bg #0 + 3096)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 90113-98304
Free inodes: 22441-24480
Group 12: (Blocks 98305-106496) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5807, unused inodes 2040
Block bitmap at 272 (bg #0 + 271), Inode bitmap at 288 (bg #0 + 287)
Inode table at 3352-3606 (bg #0 + 3351)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 98305-106496
Free inodes: 24481-26520
Group 13: (Blocks 106497-114688) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x6973, unused inodes 2040
Block bitmap at 273 (bg #0 + 272), Inode bitmap at 289 (bg #0 + 288)
Inode table at 3607-3861 (bg #0 + 3606)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 106497-114688
Free inodes: 26521-28560
Group 14: (Blocks 114689-122880) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xb3bb, unused inodes 2040
Block bitmap at 274 (bg #0 + 273), Inode bitmap at 290 (bg #0 + 289)
Inode table at 3862-4116 (bg #0 + 3861)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 114689-122880
Free inodes: 28561-30600
Group 15: (Blocks 122881-131072) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x8add, unused inodes 2040
Block bitmap at 275 (bg #0 + 274), Inode bitmap at 291 (bg #0 + 290)
Inode table at 4117-4371 (bg #0 + 4116)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 122881-131072
Free inodes: 30601-32640
Group 16: (Blocks 131073-139264) [ITABLE_ZEROED]
Checksum 0xe0a5, unused inodes 2036
Block bitmap at 131073 (+0), Inode bitmap at 131089 (+16)
Inode table at 131105-131359 (+32)
4080 free blocks, 2036 free inodes, 0 directories, 2036 unused inodes
Free blocks: 135186-139264
Free inodes: 32645-34680
Group 17: (Blocks 139265-147456) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xa697, unused inodes 2040
Block bitmap at 131074 (bg #16 + 1), Inode bitmap at 131090 (bg #16 + 17)
Inode table at 131360-131614 (bg #16 + 287)
0 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks:
Free inodes: 34681-36720
Group 18: (Blocks 147457-155648) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xf4b8, unused inodes 2040
Block bitmap at 131075 (bg #16 + 2), Inode bitmap at 131091 (bg #16 + 18)
Inode table at 131615-131869 (bg #16 + 542)
8190 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 147459-155648
Free inodes: 36721-38760
Group 19: (Blocks 155649-163840) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x681a, unused inodes 2040
Block bitmap at 131076 (bg #16 + 3), Inode bitmap at 131092 (bg #16 + 19)
Inode table at 131870-132124 (bg #16 + 797)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 155649-163840
Free inodes: 38761-40800
Group 20: (Blocks 163841-172032) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x66e7, unused inodes 2040
Block bitmap at 131077 (bg #16 + 4), Inode bitmap at 131093 (bg #16 + 20)
Inode table at 132125-132379 (bg #16 + 1052)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 163841-172032
Free inodes: 40801-42840
Group 21: (Blocks 172033-180224) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x262e, unused inodes 2040
Block bitmap at 131078 (bg #16 + 5), Inode bitmap at 131094 (bg #16 + 21)
Inode table at 132380-132634 (bg #16 + 1307)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 172033-180224
Free inodes: 42841-44880
Group 22: (Blocks 180225-188416) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x2bd2, unused inodes 2040
Block bitmap at 131079 (bg #16 + 6), Inode bitmap at 131095 (bg #16 + 22)
Inode table at 132635-132889 (bg #16 + 1562)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 180225-188416
Free inodes: 44881-46920
Group 23: (Blocks 188417-196608) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x2b3d, unused inodes 2040
Block bitmap at 131080 (bg #16 + 7), Inode bitmap at 131096 (bg #16 + 23)
Inode table at 132890-133144 (bg #16 + 1817)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 188417-196608
Free inodes: 46921-48960
Group 24: (Blocks 196609-204800) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x854b, unused inodes 2040
Block bitmap at 131081 (bg #16 + 8), Inode bitmap at 131097 (bg #16 + 24)
Inode table at 133145-133399 (bg #16 + 2072)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 196609-204800
Free inodes: 48961-51000
Group 25: (Blocks 204801-212992) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x3553, unused inodes 2040
Backup superblock at 204801, Group descriptors at 204802-204803
Reserved GDT blocks at 204804-205059
Block bitmap at 131082 (bg #16 + 9), Inode bitmap at 131098 (bg #16 + 25)
Inode table at 133400-133654 (bg #16 + 2327)
7933 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 205060-212992
Free inodes: 51001-53040
Group 26: (Blocks 212993-221184) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x6ef7, unused inodes 2040
Block bitmap at 131083 (bg #16 + 10), Inode bitmap at 131099 (bg #16 + 26)
Inode table at 133655-133909 (bg #16 + 2582)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 212993-221184
Free inodes: 53041-55080
Group 27: (Blocks 221185-229376) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xe10d, unused inodes 2040
Backup superblock at 221185, Group descriptors at 221186-221187
Reserved GDT blocks at 221188-221443
Block bitmap at 131084 (bg #16 + 11), Inode bitmap at 131100 (bg #16 + 27)
Inode table at 133910-134164 (bg #16 + 2837)
7933 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 221444-229376
Free inodes: 55081-57120
Group 28: (Blocks 229377-237568) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x1f21, unused inodes 2040
Block bitmap at 131085 (bg #16 + 12), Inode bitmap at 131101 (bg #16 + 28)
Inode table at 134165-134419 (bg #16 + 3092)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 229377-237568
Free inodes: 57121-59160
Group 29: (Blocks 237569-245760) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5fe8, unused inodes 2040
Block bitmap at 131086 (bg #16 + 13), Inode bitmap at 131102 (bg #16 + 29)
Inode table at 134420-134674 (bg #16 + 3347)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 237569-245760
Free inodes: 59161-61200
Group 30: (Blocks 245761-253952) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5214, unused inodes 2040
Block bitmap at 131087 (bg #16 + 14), Inode bitmap at 131103 (bg #16 + 30)
Inode table at 134675-134929 (bg #16 + 3602)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 245761-253952
Free inodes: 61201-63240
Group 31: (Blocks 253953-262144) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x1258, unused inodes 2040
Block bitmap at 131088 (bg #16 + 15), Inode bitmap at 131104 (bg #16 + 31)
Inode table at 134930-135184 (bg #16 + 3857)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 253953-262144
Free inodes: 63241-65280
Group 32: (Blocks 262145-270336) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0x3696, unused inodes 2040
Block bitmap at 262145 (+0), Inode bitmap at 262157 (+12)
Inode table at 262169-262423 (+24)
5108 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 265229-270336
Free inodes: 65281-67320
Group 33: (Blocks 270337-278528) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x4c30, unused inodes 2040
Block bitmap at 262146 (bg #32 + 1), Inode bitmap at 262158 (bg #32 + 13)
Inode table at 262424-262678 (bg #32 + 279)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 270337-278528
Free inodes: 67321-69360
Group 34: (Blocks 278529-286720) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xe745, unused inodes 2040
Block bitmap at 262147 (bg #32 + 2), Inode bitmap at 262159 (bg #32 + 14)
Inode table at 262679-262933 (bg #32 + 534)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 278529-286720
Free inodes: 69361-71400
Group 35: (Blocks 286721-294912) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x1830, unused inodes 2040
Block bitmap at 262148 (bg #32 + 3), Inode bitmap at 262160 (bg #32 + 15)
Inode table at 262934-263188 (bg #32 + 789)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 286721-294912
Free inodes: 71401-73440
Group 36: (Blocks 294913-303104) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x16cd, unused inodes 2040
Block bitmap at 262149 (bg #32 + 4), Inode bitmap at 262161 (bg #32 + 16)
Inode table at 263189-263443 (bg #32 + 1044)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 294913-303104
Free inodes: 73441-75480
Group 37: (Blocks 303105-311296) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5604, unused inodes 2040
Block bitmap at 262150 (bg #32 + 5), Inode bitmap at 262162 (bg #32 + 17)
Inode table at 263444-263698 (bg #32 + 1299)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 303105-311296
Free inodes: 75481-77520
Group 38: (Blocks 311297-319488) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x5bf8, unused inodes 2040
Block bitmap at 262151 (bg #32 + 6), Inode bitmap at 262163 (bg #32 + 18)
Inode table at 263699-263953 (bg #32 + 1554)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 311297-319488
Free inodes: 77521-79560
Group 39: (Blocks 319489-327680) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x24dd, unused inodes 2040
Block bitmap at 262152 (bg #32 + 7), Inode bitmap at 262164 (bg #32 + 19)
Inode table at 263954-264208 (bg #32 + 1809)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 319489-327680
Free inodes: 79561-81600
Group 40: (Blocks 327681-335872) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x8aab, unused inodes 2040
Block bitmap at 262153 (bg #32 + 8), Inode bitmap at 262165 (bg #32 + 20)
Inode table at 264209-264463 (bg #32 + 2064)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 327681-335872
Free inodes: 81601-83640
Group 41: (Blocks 335873-344064) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0xca62, unused inodes 2040
Block bitmap at 262154 (bg #32 + 9), Inode bitmap at 262166 (bg #32 + 21)
Inode table at 264464-264718 (bg #32 + 2319)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 335873-344064
Free inodes: 83641-85680
Group 42: (Blocks 344065-352256) [INODE_UNINIT, BLOCK_UNINIT, ITABLE_ZEROED]
Checksum 0x6c06, unused inodes 2040
Block bitmap at 262155 (bg #32 + 10), Inode bitmap at 262167 (bg #32 + 22)
Inode table at 264719-264973 (bg #32 + 2574)
8192 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 344065-352256
Free inodes: 85681-87720
Group 43: (Blocks 352257-358399) [INODE_UNINIT, ITABLE_ZEROED]
Checksum 0xb1b8, unused inodes 2040
Block bitmap at 262156 (bg #32 + 11), Inode bitmap at 262168 (bg #32 + 23)
Inode table at 264974-265228 (bg #32 + 2829)
6143 free blocks, 2040 free inodes, 0 directories, 2040 unused inodes
Free blocks: 352257-358399
Free inodes: 87721-89760encima