50 строки
11 KiB
ReStructuredText
50 строки
11 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0
|
|
|
|
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| i.i\_block Offset | Where It Points |
|
|
+=====================+==============================================================================================================================================================================================================================+
|
|
| 0 to 11 | Direct map to file blocks 0 to 11. |
|
|
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| 12 | Indirect block: (file blocks 12 to (``$block_size`` / 4) + 11, or 12 to 1035 if 4KiB blocks) |
|
|
| | |
|
|
| | +------------------------------+--------------------------------------------------------------------+ |
|
|
| | | Indirect Block Offset | Where It Points | |
|
|
| | +==============================+====================================================================+ |
|
|
| | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | |
|
|
| | +------------------------------+--------------------------------------------------------------------+ |
|
|
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| 13 | Double-indirect block: (file blocks ``$block_size``/4 + 12 to (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 11, or 1036 to 1049611 if 4KiB blocks) |
|
|
| | |
|
|
| | +--------------------------------+---------------------------------------------------------------------------------------------------------+ |
|
|
| | | Double Indirect Block Offset | Where It Points | |
|
|
| | +================================+=========================================================================================================+ |
|
|
| | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) indirect blocks (1024 if 4KiB blocks) | |
|
|
| | | | | |
|
|
| | | | +------------------------------+--------------------------------------------------------------------+ | |
|
|
| | | | | Indirect Block Offset | Where It Points | | |
|
|
| | | | +==============================+====================================================================+ | |
|
|
| | | | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | | |
|
|
| | | | +------------------------------+--------------------------------------------------------------------+ | |
|
|
| | +--------------------------------+---------------------------------------------------------------------------------------------------------+ |
|
|
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| 14 | Triple-indirect block: (file blocks (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 12 to (``$block_size`` / 4) ^ 3 + (``$block_size`` / 4) ^ 2 + (``$block_size`` / 4) + 12, or 1049612 to 1074791436 if 4KiB blocks) |
|
|
| | |
|
|
| | +--------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+ |
|
|
| | | Triple Indirect Block Offset | Where It Points | |
|
|
| | +================================+================================================================================================================================================+ |
|
|
| | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) double indirect blocks (1024 if 4KiB blocks) | |
|
|
| | | | | |
|
|
| | | | +--------------------------------+---------------------------------------------------------------------------------------------------------+ | |
|
|
| | | | | Double Indirect Block Offset | Where It Points | | |
|
|
| | | | +================================+=========================================================================================================+ | |
|
|
| | | | | 0 to (``$block_size`` / 4) | Map to (``$block_size`` / 4) indirect blocks (1024 if 4KiB blocks) | | |
|
|
| | | | | | | | |
|
|
| | | | | | +------------------------------+--------------------------------------------------------------------+ | | |
|
|
| | | | | | | Indirect Block Offset | Where It Points | | | |
|
|
| | | | | | +==============================+====================================================================+ | | |
|
|
| | | | | | | 0 to (``$block_size`` / 4) | Direct map to (``$block_size`` / 4) blocks (1024 if 4KiB blocks) | | | |
|
|
| | | | | | +------------------------------+--------------------------------------------------------------------+ | | |
|
|
| | | | +--------------------------------+---------------------------------------------------------------------------------------------------------+ | |
|
|
| | +--------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------+ |
|
|
+---------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|