nfsv4_getref
void nfsv4_getref(struct nfsv4lock *, int *, struct mtx *, struct mount *);
nfsv4_getref(&owp->nfsow_rwlock, NULL,
nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, nmp->nm_mountp);
nfsv4_getref(&lyp->nfsly_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
nfsv4_getref(&lyp->nfsly_lock, NULL,
nfsv4_getref(&lyp->nfsly_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
nfsv4_getref(&clp->nfsc_lock, NULL, NFSCLSTATEMUTEXPTR, mp);
nfsv4_getref(&NFSD_VNET(nfsd_suspend_lock), NULL,
nfsv4_getref(&nfsv4rootfs_lock, NULL,
nfsv4_getref(&nfsv4rootfs_lock, NULL, NFSV4ROOTLOCKMUTEXPTR, NULL);
nfsv4_getref(&nfsv4rootfs_lock, NULL, NFSV4ROOTLOCKMUTEXPTR, NULL);
nfsv4_getref(&nfsv4rootfs_lock, NULL, NFSV4ROOTLOCKMUTEXPTR, NULL);