ibcs2_sys_umount  387 compat/ibcs2/ibcs2_syscallargs.h int	ibcs2_sys_umount(struct proc *, void *, register_t *);
ibcs2_sys_umount   69 compat/ibcs2/ibcs2_sysent.c 	    ibcs2_sys_umount },			/* 22 = umount */