On Wed, Jul 22, 2015 at 5:55 PM, Luis R. Rodriguez <mcg...@suse.com> wrote: > On Wed, Jul 22, 2015 at 04:15:41PM -0700, Dan Williams wrote: > Anyway so why is WB and WT allowed if you are going to remove WC and not add > UC? >
Because all existing usages of WB and WT mappings are clearly free of I/O side effect concerns. The WC and now UC usages are a muddy mix of "sometimes there's I/O side effects, but it depends by arch and driver". -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
