netsniff-ng.git - A high-performance Linux networking toolkit

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efore the changes being committed actually happen. To avoid this, we can extend .atomic_flush(), so after it sets cfg_done bit, it polls the vblank interrupt bit until it's inactive to make sure that any old vblank interrupt gets to the handler and then uses synchronize_irq(vop->irq) to make sure the handler finishes running. The polling case should happen very rarely, but even if, the total wait time should be relatively low and in practice almost equal to the vop hardirq handler running time. Signed-off-by: Tomasz Figa <tfiga@chromium.org>

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