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    SubjectRe: blocks or KB? (was: .. current meaning of blk_size array)
    On Nov 15, 2001  13:31 -0500, William Park wrote:
    > I looked around, and 1KB block size is hard-coded in too many places.
    > For example, function 'generic_make_request()' in
    > 'drivers/block/ll_rw_blk.c' assumes 512 sector and 1024 block size:

    Yes, it _would_ be nice to clean this up, but it is a lot of work. You
    could check out Anton's patch (posted today) for this as a starting point.

    > Is changing 'int' to 'u64' (and all the dependent code) enough to get
    > 64-bit block devices? I'm willing to do the work.

    It is already done, please don't duplicate. Search for 64 bit block
    devices around June of this year for a URL to Jens'/Ben's patch. Please
    repost the URL, as several people have asked.

    > I don't care about filesystem; that's the job for maintainer of particular
    > filesystem. I understand XFS is 64-bit, so I can use that.

    FYI, ext2/ext3 _should_ be OK up to 8TB (possibly 16TB depending on sign
    issues) filesystem, with individual files at 2TB, when using a 4kB block
    size. However, there appear to be other issues like VFS and page cache
    which may have problems at this point as well.

    Cheers, Andreas
    --
    Andreas Dilger
    http://sourceforge.net/projects/ext2resize/
    http://www-mddsp.enel.ucalgary.ca/People/adilger/

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