On Sep 04, 2006 16:59 +0200, Alexandre Ratchov wrote: > in order tu use 48bit adressing, we have to use larger block groups (because > all group descriptors must fit in one block group). So we'll need 16bit > "_hi" bits for blocks_count, inodes_count and perhaps used_dirs_count. And > this leaves no room for additional fields. > > There's already a patch that makes the descriptor structure size variable > (similarly to the inode size), see marc.theaimsgroup.com/?m=114968738307171 > Here is the updated patch set: It was always my desire to require the use of the larger group descriptors when using a filesystem with > 32-bit blocks. That avoids the need to use up the small group descriptors for the 64-bit block numbers, allowing them to be used for other features that are still relevant for smaller filesystems like checksums and UNINIT groups. > linux-2.6.18-rc4: > > http://www.bullopensource.org/ext4/20060904/ext4-linux-2.6.18-rc4.tar.gz > > e2fsprogs-1.39: > > http://www.bullopensource.org/ext4/20060904/ext4-e2fsprogs-1.39.tar.gz Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc. - 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
