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    SubjectRe: [Ext2-devel] [RFC 0/13] extents and 48bit ext3
    Alex Tomas wrote:
    >>>>>> Linus Torvalds (LT) writes:
    > LT> My point is, maintaining two different pieces is SIMPLER.
    >
    > "different" is a key word here. why should we copy most of ext3 code
    > into ext4?
    >
    > LT> It would be bigger, if you made ext3 do 48-bit block numbers.
    >
    > nope, we re-use existing i_data w/o any changes. yes, we've made
    > inode a bit larger to cache last found extent. this improves
    > performance in some workloads noticable though.
    >
    > LT> See? ext3 would become strictly _worse_ for the majority of users, who
    > LT> wouldn't get any advantage. That's my point.
    >
    > would "#if CONFIG_EXT3_EXTENTS" be a good solution then?

    No, that would be worse.

    Jeff



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