status of dir_index in 2.4 kernels ?

[Sean Neakums]

Adam Cassar <adam.cassar at netregistry.com.au> writes:

> On Thu, 2004-09-23 at 01:13, Jakob Curdes wrote:
>> Hi,
>> 
>> I stumbled on the dir_index option of recent ext2 implementation which 
>> would be interesting for our mailservers (running dovecot with maildir) 
>> and found out that the newer ext2progs are able to cope with it; the 2.6 
>> kernels do also but for the 2.4 kernels I still require a patch. Is that 
>> correct? Which patch would be the correct one to apply to the current 
>> 2.4.27 kernel ? Can anybody comment on the stability of 
>> dir_index-enabled filesystems ?
>
> We have a similar set up but the maildirs are exported via NFS.
>
> Performance was actually worse. There is a userspace preload lib that
> supposedly fixes the problem but by that time I didn't bother
> continuing.
>
> Search the archives for the thread.

This is probably the one.

https://listman.redhat.com/archives/ext3-users/2003-December/msg00040.html