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| -rw-r--r-- | Documentation/filesystems/ext4.txt | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 6c0108eb0137..3698ed3146e3 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -351,14 +351,13 @@ nouid32 Disables 32-bit UIDs and GIDs. This is for interoperability with older kernels which only store and expect 16-bit values. -block_validity This options allows to enables/disables the in-kernel +block_validity(*) These options enable or disable the in-kernel noblock_validity facility for tracking filesystem metadata blocks - within internal data structures. This allows multi- - block allocator and other routines to quickly locate - extents which might overlap with filesystem metadata - blocks. This option is intended for debugging - purposes and since it negatively affects the - performance, it is off by default. + within internal data structures. This allows multi- + block allocator and other routines to notice + bugs or corrupted allocation bitmaps which cause + blocks to be allocated which overlap with + filesystem metadata blocks. dioread_lock Controls whether or not ext4 should use the DIO read dioread_nolock locking. If the dioread_nolock option is specified |