And indeed there was a patch I proposed in 2008 for this bounce buffer latency: See the archive Date: Fri, 29 Feb 2008 13:51:06 +0000 From: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> To: linux-ide@xxxxxxxxxxxxxxx, jeff@xxxxxxxxxx Subject: [RFC PATCH] libata: PIO via bounce buffer although it doesn't deal with the dcache coherency issue and seems to need a little tweaking to apply due to other changes Alan -- 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
