Re: [RFC 0/13] extents and 48bit ext3

>>>>> Jeff Garzik (JG) writes:

 JG> Alex Tomas wrote:
 JG> "ext3" will become more and more meaningless.  It could mean
 >> _any_ of  JG> several filesystem metadata variants, and the admin
 >> will have no clue  JG> which variant they are talking to until they
 >> try to mount the blkdev  JG> (and possibly fail the mount).
 >> debugfs <dev> -R stats | grep features ?

 JG> The question is, do you

 JG> a) expect users to run this magic command, and DTRT or

 JG> b) watch users boot w/ extents, accidentally do something silly like
 JG> writing data to a file, and become locked into a new subset of kernels?

at the moment there is no way to "boot w/ extents". you must enable
them by mount option.


thanks, Alex