Symbol: GET_IONOLOCK
usr/src/lib/libc/inc/mtlib.h
81
#define FILELOCKING(iop) (GET_IONOLOCK(iop) == 0)
usr/src/lib/libc/port/stdio/flockf.c
95
ret = GET_IONOLOCK(iop) ? FSETLOCKING_BYCALLER : FSETLOCKING_INTERNAL;