FAST_NFS_PING
(MAX_ALLOWED_PINGS - 1) * FAST_NFS_PING + fs->fs_pinger - 1;
fstimeo = FAST_NFS_PING;
fstimeo = FAST_NFS_PING;
np->np_ttl = clocktime() + MAX_ALLOWED_PINGS * FAST_NFS_PING - 1;
#if (FAST_NFS_PING * MAX_ALLOWED_PINGS) >= ALLOWED_MOUNT_TIME