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Re: [RFC] mke2fs with DIR_INDEX, RESIZE_INODE by default



On Sat, 2006-03-18 at 01:43 -0700, Andreas Dilger wrote:

> We don't modify the htree code at all in either 2.6.9-RHEL or 2.6.12, only
> 2.6.5 SLES9 has a small patch for "." and ".." lookup.

Actually, RHEL-4 (based off 2.6.9) has needed one htree-related fix:

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=acfa1823d33859b0db77701726c9ca5ccc6e6f25

which affects NFS lookup-parent only, so Lustre probably wouldn't need
it.

That was the last one I'm aware of; it has been robust other than that,
and the RHEL and Fedora installers have been doing tune2fs -O dir_index
to all filesystems by default since RHEL-4 / FC-2 (ie. for over 18
months,) so it's definitely well tested here.

--Stephen



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