Re: [RFC 0/13] extents and 48bit ext3
Jeff Garzik <[email protected]>
| Newsgroups | gmane.comp.file-systems.ext2.devel,gmane.linux.kernel,gmane.linux.file-systems |
|---|---|
| Message-ID | <[email protected]> |
Alex Tomas wrote: >>>>>> 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. Think about how distros will deploy this feature. Also, think about how scalable that line of thinking is... Jeff