On Sun, Jan 11, 2009 at 3:28 PM, Theodore Tso <tytso@xxxxxxx> wrote: > On Sun, Jan 11, 2009 at 01:44:43PM +0000, Alex Buell wrote: >> Can someone confirm if the online ext4 defragmentation ioctls will >> be going into 2.6.29? Thanks, I'm planning a migration from a >> disparate collection of filesystems to ext4 over the next few months. > > Unfortunately, the defragmentation patches need to a lot of work (to > be honest, largely refactored and almost rewritten) before they are > ready to for mainline yes. I am also concerned that the current > defrag patches also try too hard to keep blocks in the same block > group, even as a higher priority keeping them non-fragmented. > > Also, note that some of the benefits of ext4 only show up if you do a > backup, mkfs, and restore; that's because there are layout changes > that can only take place if you reformat the filesystem. Finally, > there are some allocation algorithm changes which didn't make the > 2.6.29 merge window which I think will make a long-term difference. > So you'll probably want to use 2.6.29 with the ext4 patch set. Hi Ted, Could you elaborate on which allocation patches you're referring to in the ext4 patch queue (2.6.28-ext4-3?) ? Thanks, Mike -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
