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    SubjectRe: [PATCH v3] block/loop: Serialize ioctl operations.
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    Did you get any idea?

    On 2018/06/05 3:13, Jens Axboe wrote:
    > On 6/4/18 5:19 AM, Tetsuo Handa wrote:
    >> This problem was already ignored for 8 months. Unless we boost priority,
    >> this problem will be ignored for years. Jens, can we test this patch?
    >
    > Sorry, it's just that I _really_ hate this patch. We're making up
    > a weird locking primitive that tracks the process, with a weird
    > unlock helper that only unlocks if it's the process that is
    > holding the mutex.
    >
    > I'll try and think about this a bit, it would be nice if we had
    > a better alternative than the above.
    >

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