Re: fatfs checked in

[Marcus Brinkmann]

On Wed, Dec 04, 2002 at 08:45:46PM +0100, M. Gerards wrote:
> 
> > > There are still two locking problems. I'm working on those problems ATM. 
> > > Because of those problems fatfs will most likely freeze while testing it.
> > 
> > Even in read-only mode?  My understanding was that the locking problems only
> > occur when writing.  Certainly the fatfs I wrote (0.2) worked fine in read
> > only mode.
> 
> No, it didn't. And if you are really sure, please tell me what I did wrong ;).
> 
> The problem is in read_node. It calls diskfs_cached_lookup to look up the
> directory holding the node because the stat information (inode) is stored in 
> the
> directory. The directory needs to be locked, but is already locked in some 
> cases.

Ah, right.  D'oh.
 
> There is another locking problem triggered by writing support, I assume you 
> were
> thinking about that one...

Yow, there are more than I remembered.
 
> I thought I already explained this serveral times...

Yeah, but my mind is a sieve ;)  I will put down everything that needs to be
done in the Savannah task system.

Thanks,
Marcus

-- 
`Rhubarb is no Egyptian god.' GNU      http://www.gnu.org    marcus@gnu.org
Marcus Brinkmann              The Hurd http://www.gnu.org/software/hurd/
Marcus.Brinkmann@ruhr-uni-bochum.de
http://www.marcus-brinkmann.de/