V7FSBSD_IFFIFO
case V7FSBSD_IFFIFO:
#define v7fs_inode_isfifo(i) (((i)->mode & V7FS_IFMT) == V7FSBSD_IFFIFO)
if ((mode & V7FS_IFMT) == V7FSBSD_IFFIFO)
V7FSBSD_IFFIFO };