NFSSTA_HASWRITEVERF
#define NFSHASWRITEVERF(n) ((n)->nm_state & NFSSTA_HASWRITEVERF)
#define NFSSETWRITEVERF(n) ((n)->nm_state |= NFSSTA_HASWRITEVERF)
if ((nmp->nm_state & NFSSTA_HASWRITEVERF) == 0) {