On Thu, 2012-06-28 at 13:05 +0200, Peter Zijlstra wrote: > > > Some embedded ppc's know about the lowest level (SW loaded PMD) but > > that's not an issue here. We flush these special TLB entries > > specifically and synchronously in __pte_free_tlb(). > > OK, I missed that.. is that > arch/powerpc/mm/tlb_nohash.c:tlb_flush_pgtable() ? Yup. > > > So even if the hardware did do speculative tlb fills, it would do > them > > > from the hash-table, but that's already cleared out. > > > > Right, > > Phew at least I got the important thing right ;-) Yeah as long as we have that hash :-) The day we move on (if ever) it will be as bad as ARM :-) Cheers, Ben. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>