From: "JavierMartín" <[EMAIL PROTECTED]>
Sent: Saturday, July 05, 2008 3:25 PM
To: "The development of GRUB 2" <grub-devel@gnu.org>
Subject: Re: [PATCH] ext4 extent support
I think flex_bg support is unimplemented right now (at least I didn't
see it anywhere), but it "worked" because it's not being used? Just a
guess
I just checked.
Kernel 2.6.26-rc8 has a bit code with flex_bg
e2fsprogs 1.41WIP from Debian experimantel has a bit more code with flex
(not much with flex_bg more flexbg or just _flex)
But I don't know much C so I don't understand the code :)
Anyway I think the most important ext4 support are extents, because you can
enable them by just remounting to ext4 as long as you don't use noextents
mount option
flex_bg can only be enabled by mkfs.ext4(dev) not afterwards with tune2fs
but it's default enabled in mke2fs.conf for ext4(dev)
uninit_bg isn't enabled by default and can be enabled afterwards with
tune2fs but resize2fs isn't currently working with it
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