On Mon, Aug 11, 2003 at 07:27:14PM +0800, Ian Kent wrote:
> 
> Hi all,
> 
> I would like to raise the autofs v4 maintainer question again.
> 
> This package has not been actively maintained by Jeremy for a long time 
> now and so I would like to take on the role of maintainer. I have mailed 
> Jeremy to discuss this but have had no reply so I am appealing to the list 
> for support.
> 
> I have been working on v4 for the last couple of years and have managed to 
> implement some important improvements. These are the ability of the daemon 
> to understand direct mount maps for file and NIS sources (with LDAP to 
> come soon) and browseable autofs directory structure (aka ghosting with late 
> mounting).
> 
> Comments please.
> 

IMHO, it will be nice to have active maintainer for autofs4, particularly for
keeping autofs4 in sync with VFS layer changes. This is necessary as I found
autofs4 interacting with VFS (dcache and vfsmount) in a way no other file 
system does. 

The problem is with is_tree_busy() routine where we check and depend on 
dentry ref count to find busy dentries. Though it is done under dcache_lock
but I don't think taking dcache_lock will guarantee consistent reference count
for dentries. We have other people doing dget() or dput() without taking
dcache_lock. Further, introduction of RCU based dcache lookup in 2.5.61 it is 
more susceptible to races.

So, I hope you will look into this problem also.

Thanks
Maneesh

-- 
Maneesh Soni
IBM Linux Technology Center, 
IBM India Software Lab, Bangalore.
Phone: +91-80-5044999 email: [EMAIL PROTECTED]
http://lse.sourceforge.net/
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