> 1. use p = uio->uio_procp consistently and eliminate suspicious uses
>    of curproc (where uio->uio_procp should be used?)

please don't unless you are sure that the instance of curproc is wrong.
at least, changes of the argument of nfs_commit() in your patch
don't seem correct to me.

sometime ago, nfs code has been messed by
mechanical replacing of curproc.  please don't make it worse.

YAMAMOTO Takashi