On 06/04/11 19:28, David wrote: > On 5 June 2011 12:21, Genes MailLists<lists@xxxxxxxxxxxx> wrote: >> On 06/04/2011 10:15 PM, David wrote: >>> On 5 June 2011 12:07, JD<jd1008@xxxxxxxxx> wrote: >>>> On 06/04/11 19:02, David wrote: >>>>> On 5 June 2011 11:42, JD<jd1008@xxxxxxxxx> wrote: >>>>>> I think you can read the kernel source code as well >>>>>> as anyone. So you have to do some homework :) >>>>> [david@kablamm partition]$ rpm -qf /sbin/mkfs.ext3 >>>>> e2fsprogs-1.41.9-5.fc12.i686 >>>>> >>>>> kernel ? >>>> Well, you can peruse the latest mainline kernel source: >>>> http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.39.1.tar.bz2 >>> Partitioning is done by mkfs variants. Nothing to do with the kernel. >> David no need to keep teasing the mouse .. :-) >> >> Nothing cares about cylinders on a hard drive after windows 95 (maybe >> windows 98) ... everything since then uses LBA so cylinders are >> completely irrelevant - its just a historical quirk. >> >> So fuggit about it .. .:-) > Awww, not teasing, fighting FUD about CHS! But yeah, agree, enuf :-) Excerpts from Kernel code commentary: ext2/inode.c * Rules are: * + if there is a block to the left of our position - allocate near it. * + if pointer will live in indirect block - allocate near that block. * + if pointer will live in inode - allocate in the same cylinder group. ext3/inode.c * Rules are: * + if there is a block to the left of our position - allocate near it. * + if pointer will live in indirect block - allocate near that block. * + if pointer will live in inode - allocate in the same * cylinder group. ext4/inode.c * Rules are: * + if there is a block to the left of our position - allocate near it. * + if pointer will live in indirect block - allocate near that block. * + if pointer will live in inode - allocate in the same * cylinder group. Blocks are mapped (or organized in) cylinder groups. Or, you can just ignore that and "fuggit" about it :) -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
