On Thu, Apr 20, 2017 at 7:30 AM, Mel Gorman <mgor...@techsingularity.net> wrote: >> The end result was a revert, and this is waiting in AKPMs quilt queue: >> >> http://ozlabs.org/~akpm/mmots/broken-out/revert-mm-page_alloc-only-use-per-cpu-allocator-for-irq-safe-requests.patch >> > > This was flagged to Andrew that it should go in for either 4.11 or if > there were concerns about how close to the release we are then put it in > for 4.11-stable. At worst, I can do a resubmit to -stable myself after > it gets merged in the next window if it falls between the cracks.
This got merged (commit d34b0733b452: "Revert "mm, page_alloc: only use per-cpu allocator for irq-safe requests""). The other issue (caused by commit a499a5a14dbd: "sched/cputime: Increment kcpustat directly on irqtime account") is still open. Frederic? Revert? But I guess it's something we can delay for backporting, it's presumably not possible to hit maliciously except on some fast local network attacker just causing an effective DoS. Linus