Flush request isn't queueable. When it's running, other request can't. We can optimize flush performance according to this knowledge In my test, I got about 20% performance boost. v2->v3: mainly adds more comments to explain the optimization and changes the code position to enable the optimization in SATA. -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
