pn_fill
pn->pn_fill = fill;
pn->pn_fill = fill;
pfs_fill_t pn_fill;
KASSERT(pn->pn_fill != NULL, ("%s(): no callback", __func__));
return ((pn->pn_fill)(PFS_FILL_ARGNAMES));
error = pn_fill(curthread, proc, pn, &sb, NULL);
if (pn->pn_fill == NULL)
error = pn_fill(curthread, proc, pn, NULL, uio);
error = pn_fill(curthread, proc, pn, &sb, uio);
if (pn->pn_fill == NULL)
error = pn_fill(curthread, proc, pn, NULL, uio);
error = pn_fill(curthread, proc, pn, sb, uio);
if (pn->pn_fill == NULL)