_S_IFBLK           47 kern/include/stat.h #define S_IFBLK  _S_IFBLK
_S_IFBLK           49 user/include/sys/stat.h #define S_ISBLK(mode) ((mode & _S_IFMT) == _S_IFBLK)
_S_IFBLK           62 user/include/sys/stat.h #define S_IFBLK  _S_IFBLK