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Documentation: fix description of ext4's block_validity mount option 

Fix ext4 documentation according to commit 45f1a9c3f6
("ext4: enable block_validity by default")

Also fix some typos.

[ Further documentation cleanups by tytso ]

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Fabian Frederick 2016-12-03 16:44:45 -05:00 committed by Theodore Ts'o
parent ab04df7818
commit 9e645ab72e
1 changed files with 6 additions and 7 deletions
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Documentation/filesystems/ext4.txt
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@ -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