On Wed, Jul 05, 2017 at 10:56:57AM +0200, Ingo Molnar wrote: > > * Andy Lutomirski <luto@xxxxxxxxxx> wrote: > > > *** Ingo, even if this misses 4.13, please apply the first patch before > > *** the merge window. > > > Andy Lutomirski (10): > > x86/mm: Don't reenter flush_tlb_func_common() > > x86/mm: Delete a big outdated comment about TLB flushing > > x86/mm: Give each mm TLB flush generation a unique ID > > x86/mm: Track the TLB's tlb_gen and update the flushing algorithm > > x86/mm: Rework lazy TLB mode and TLB freshness tracking > > x86/mm: Stop calling leave_mm() in idle code > > x86/mm: Disable PCID on 32-bit kernels > > x86/mm: Add nopcid to turn off PCID > > x86/mm: Enable CR4.PCIDE on supported systems > > x86/mm: Try to preserve old TLB entries using PCID > > So this series is really nice, and the first two patches are already upstream, and > I've just applied all but the final patch to tip:x86/mm (out of caution - I'm a wimp). > > That should already offer some improvements and enables the CR4 bit - but doesn't > actually use the PCID hardware yet. > > I'll push it all out when it passes testing. > > If it's all super stable I plan to tempt Linus with a late merge window pull > request for all these preparatory patches. (Unless he objects that is. Hint, hint.) > > Any objections? > What was the final verdict here? I have a patch ready that should be layered on top which will need a backport. PCID support does not appear to have made it in this merge window so I'm wondering if I should send the patch as-is for placement on top of Andy's work or go with the backport and apply a follow-on patch after Andy's work gets merged. Thanks. -- Mel Gorman SUSE Labs -- 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>
