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    Subject[PATCH] attempt #2 (Re: Deadlock on the mm->mmap_sem)
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    Here's a revised patch to make rwsems unfair. This makes the activity counter
    a long (so it can handle up to 2^63 readers on a 64-bit arch) and fixes a
    small bug in the lib/rwsem.c file. This now passes all the rwsem tests that
    I've got.

    David

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