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    SubjectRe: BUG: lock held when returning to user space


    On Sat, 27 Oct 2007, Peter Zijlstra wrote:
    >
    > Now I could probably come up with an annotation to hide it, but what do
    > other people think, Ingo, Linus, Andrew, do we want to keep kernel locks
    > held over userspace?

    Definitely not a sane thing to do. It should use ref-counting and/or a
    single bit to say "busy".

    Linus
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