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Re: htree 2.4.19-dxdir patch

On Mon, 23 Sep 2002, Andreas Dilger wrote:
> On Sep 24, 2002  10:12 +1000, Daniel Pittman wrote:
>> On Mon, 23 Sep 2002, Stephen C. Tweedie wrote:
>> > It should work on existing filesystems, but not on existing
>> > directories larger than a block. If a directory already has a
>> > sequential multiblock layout, then the htree code can't yet go in
>> > and create a new index for the whole directory.
>> Is this something that's on the hit-list to fix, or should I
>> anticipate needing to manually rebuild my various large directories
>> to take advantage of the performance boost?
> It is not something that the kernel will do directly. If you enable
> the dir_index feature in the superblock, e2fsck will re-index all of
> the directories in the filesystem (or at least that is my
> understanding, I have never tested this myself but it should be in
> e2fsck 1.28).

Ah, that's fine. From reading the previous message I got the impression
that it wouldn't change anything larger than a block -- in kernel or out
of it.

Thank you for clearing that up.

You must not quote to me what I once said. I am wiser now.
        -- Romy Schneider (1966)

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