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    SubjectRe: Btrfs v0.16 released
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    On Tue, 2008-08-05 at 15:01 -0400, Chris Mason wrote:

    > * Fine grained btree locking. The large fs_mutex is finally gone.
    > There is still some work to do on the locking during extent allocation,
    > but the code is much more scalable than it was.

    Cool - will try to find a cycle to stare at the code ;-)

    > * Helper threads for checksumming and other background tasks. Most CPU
    > intensive operations have been pushed off to helper threads to take
    > advantage of SMP machines. Streaming read and write throughput now
    > scale to disk speed even with checksumming on.

    Can this lead to the same Priority Inversion issues as seen with
    kjournald?



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