nfsd module refcount is out of control....

nfsd module refcount is out of control....

[Steve Dickson]

Has anybody noticed that bring up kNFSD (using a 2.6.24 kernel)
causes 17 modules references on nfsd?

# lsmod | grep nfsd
nfsd                  201584  17 
lockd                  60488  2 nfsd
nfs_acl                 6656  1 nfsd
auth_rpcgss            39360  1 nfsd
exportfs                7936  1 nfsd
sunrpc                157892  10 nfsd,lockd,nfs_acl,auth_rpcgss

It appears one of the culprits is svc_set_num_threads() since
it does a module_get() for every thread, which seems a bit
excessive imho...  What happen to the idea of the first thread 
creating the refcount and the last thread removing the 
refcount?

Anyways, I don't see any routine removing all those 
refcounts. Should something like svc_exit_thread() be
doing the module_put() since svc_set_num_threads did
all those gets? If not, how are all those refcounts
suppose to be removed?  

Also, does anybody have clue as to why auth_rpcgss is 
being insmod-ed when there are no secure exports 
defined?

tia,

steved.