The following is two patches that implement a per-cpu cache for high-order allocations, primarily aimed at SLUB. The first patch is a bug fix that is technically unrelated but was discovered by review and so batched together. The second is the patch that implements the cache.
include/linux/mmzone.h | 20 +++++++- mm/page_alloc.c | 122 +++++++++++++++++++++++++++++++------------------ 2 files changed, 96 insertions(+), 46 deletions(-) -- 2.10.2