On Fri, Apr 24, 2015 at 04:46:22PM +0200, Vlastimil Babka wrote: > On 04/21/2015 12:41 PM, Mel Gorman wrote: > >Changelog since V2 > >o Ensure TLBs are flushed before pages are freed (mel) > > I admit not reading all the patches thoroughly, but doesn't this > change of ordering mean that you no longer need the architectural > guarantee discussed in patch 2?
No. If we unmap a page to write it to disk then we cannot allow a CPU to write to the physical page being written through a cached entry. -- Mel Gorman SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
