From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Date: Mon, 2 Feb 2015 22:38:51 -0800 > It is only with both these ratios that we can work out whether the > patch is a net gain. My suspicion is that set_bit on an already-set > bit is so rare that the patch will be a loss. A common pattern is implementing a "referenced" bit, and in that case the bit is often already set, and in such a scenerio the proposed change is a huge win. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
