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-rw-r--r--Documentation/filesystems/ext4/blocks.rst6
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/filesystems/ext4/blocks.rst b/Documentation/filesystems/ext4/blocks.rst
index 73d4dc0f7bda..b0f80ea87c90 100644
--- a/Documentation/filesystems/ext4/blocks.rst
+++ b/Documentation/filesystems/ext4/blocks.rst
@@ -10,7 +10,9 @@ block groups. Block size is specified at mkfs time and typically is
4KiB. You may experience mounting problems if block size is greater than
page size (i.e. 64KiB blocks on a i386 which only has 4KiB memory
pages). By default a filesystem can contain 2^32 blocks; if the '64bit'
-feature is enabled, then a filesystem can have 2^64 blocks.
+feature is enabled, then a filesystem can have 2^64 blocks. The location
+of structures is stored in terms of the block number the structure lives
+in and not the absolute offset on disk.
For 32-bit filesystems, limits are as follows:
@@ -37,7 +39,7 @@ For 32-bit filesystems, limits are as follows:
- 4TiB
- 8TiB
- 16TiB
- - 256PiB
+ - 256TiB
* - Blocks Per Block Group
- 8,192
- 16,384