Re: "df -i" support

[Jonathan Briggs <jbriggs@esoft.com>]

On Fri, 2004-05-14 at 11:40, Miguel wrote:
> On Fri, 14 May 2004 12:55:53 -0400
> Valdis.Kletnieks@vt.edu wrote:
> 
> > On Fri, 14 May 2004 17:32:27 +0200, Miguel said:
> > 
> > > We are migrating our mtas from ext3 to reiserfs and the
> > > monitorization(a plugin) relies on the output of df -i, this output
> > > is very diferent between those filesystems, because reiserfs always
> > > return -1 as a total number of inodes.
> > 
> > The only reason you care about df -i is because on ext[23] and
> > similar, it is possible to run out of inodes before you run out of
> > files.  Since reiserfs allocates inodes as needed, you can't run out
> > of them unless you run out of space - in which case your monitoring
> > system should be flagging that.
> 
> No, we check this value to know how many files are in that
> partition (well an aproximation). I hope that this is true for ext2/3,
> isn't?
> 

Would this help you?

# cat /proc/fs/reiserfs/md1/oidmap

At the end of oidmap is a line like this:
total:  46 [46/972] used: 176147 [exact]

I think the used: 176147 is pretty close to what you want.  The number
goes up and down when I create or remove files.  When I ran 'find /
-xdev | wc -l' I got 174425.  I'm not sure where the extra 1,000+ comes
from.  

You would need to have CONFIG_REISERFS_PROC_INFO set in your kernel, and
of course you would need to replace md1 with whatever device you were
using.
-- 
Jonathan Briggs
jbriggs@esoft.com