Looking at the patch (http://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff;h=761e433f3de6fb8e369af9e5c08beb86286d023f) I'm not sure it's an optimal design. The flush callback really is a per-queue thing. Why isn't it a function pointer in the request queue when doing the blk_run_queue call once we're done with a given queue before moving on to the next one? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html