Hi Linus, This pull request includes my scan hint update which helps address performance issues with heavily fragmented blocks. The other change is a lockdep fix when freeing an allocation causes balance work to be scheduled. Thanks, Dennis The following changes since commit fa3d493f7a573b4e4e2538486e912093a0161c1b: Merge tag 'selinux-pr-20190312' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux (2019-03-13 11:10:42 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git for-5.2 for you to fetch changes up to 198790d9a3aeaef5792d33a560020861126edc22: percpu: remove spurious lock dependency between percpu and sched (2019-05-08 12:08:48 -0700) ---------------------------------------------------------------- Dennis Zhou (12): percpu: update free path with correct new free region percpu: do not search past bitmap when allocating an area percpu: introduce helper to determine if two regions overlap percpu: manage chunks based on contig_bits instead of free_bytes percpu: relegate chunks unusable when failing small allocations percpu: set PCPU_BITMAP_BLOCK_SIZE to PAGE_SIZE percpu: add block level scan_hint percpu: remember largest area skipped during allocation percpu: use block scan_hint to only scan forward percpu: make pcpu_block_md generic percpu: convert chunk hints to be based on pcpu_block_md percpu: use chunk scan_hint to skip some scanning John Sperbeck (1): percpu: remove spurious lock dependency between percpu and sched include/linux/percpu.h | 12 +- mm/percpu-internal.h | 15 +- mm/percpu-km.c | 2 +- mm/percpu-stats.c | 5 +- mm/percpu.c | 549 ++++++++++++++++++++++++++++++++++--------------- 5 files changed, 405 insertions(+), 178 deletions(-)