On Tue, Mar 26, 2019 at 04:01:26PM -0700, Nicolin Chen wrote: > This series of patches try to save single pages from CMA area bypassing > all CMA single page alloctions and allocating normal pages instead, as > all addresses within one single page are contiguous. > > We had once applied the PATCH-5 but reverted it as actually not all the > callers handled the fallback allocations. Per Robin's suggestion, let's > stuff alloc_pages()/free_page() fallbacks to those callers before having > PATCH-5.
Given the problems this has caused so far I'd like to see a good explanation of why this optimization is so important that all the churn is even worth it.. _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
