From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oleg Drokin <green@namesys.com>
Subject: Re: How tell what version of reiserfs my filesystem is?
Date: Thu, 4 Apr 2002 09:10:03 +0400
Message-ID: <20020404091003.A5663@namesys.com>
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To: Nick Urbanik <nicku@vtc.edu.hk>
Cc: ReiserFS <reiserfs-list@namesys.com>

Hello!

On Thu, Apr 04, 2002 at 05:06:48AM +0800, Nick Urbanik wrote:

> I have been using 2.4.19-pre5.  What does this mean in dmesg output:
> Using r5 hash to sort names
> ReiserFS version 3.6.25

It means your filesystem is using r5 hash. Version information is obsolette and
will be removed soon.

> > Also with recent 2.4 kernels (2.4.17+), you can lookup this info
> > in the /proc filesystem if you have enabled CONFIG_REISERFS_PROC_INFO.
> I had it off.
> About CONFIG_REISERFS_PROC_INFO, Configure.help says: "This also
> increases amount of kernel memory required for each mount."
> By approximately how much does it do so?  For six large reiserfs file
> systems?

+8Kb of code (ie, common for no matter how much reiserfs fses you have)
plus ~440 bytes for each filesystem mounted for counters.

Of course there is little performance hit (cpu time eaten) to
actually increment these counters.

Bye,
    Oleg