[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] ext4 extent support

From: Felix Zielcke
Subject: Re: [PATCH] ext4 extent support
Date: Sun, 6 Jul 2008 10:44:18 +0200

From: "JavierMartín" <address@hidden>
Sent: Saturday, July 05, 2008 8:09 PM
To: "The development of GRUB 2" <address@hidden>
Subject: Re: [PATCH] ext4 extent support

I mean unimplemented in GRUB right now.

Ah yeah of course :)

IIrc, flex_bg relaxes some of
the rules governing the location of the metadata block groups or
something like that, so that they can be placed in "arbitrary"
Uninit_bg allows yet-unused block groups and inode tables to be
initalized on first use, and saves a lot of time in mkfs (because it
doesn't have to write all the inode tables) and fsck (because there's
need to check unused block groups at all).

Yeah I read sth. about these ext4 features before I started to try it out.
But I thought extN on a small new created filesystem with no deleted files works like inode/block 0 to x is used and x+1 to end is unused so it shouldn't make a difference with uninit_bg enabled or not
GRUB wouldn't get to these unused inodes/blocks
Seems like there's still much I could learn :)

Oh and by the way
The ext4 developer is now using ext4 as primary fs on his notebook
and he says it should be in a few weeks ready to be used for production data
So seems like not a bad Idea to think about ext4 support in GRUB :)
I only had problems with 2.6.25 Kernel. Since I switched from that one to 2.6.26-rc7 ext4 worked fine But I only use it in a VMware test system which isn't used much

reply via email to

[Prev in Thread] Current Thread [Next in Thread]