What is the history of CONFIG_EXT{2,3}_CHECK?

[Adrian Bunk]

Can anyone tell me the history of CONFIG_EXT{2,3}_CHECK?

There is code for a "check" option for mount if these options are 
enabled, but there's no way to enable them.

TIA
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed