On 2022-02-06 11:32 p.m., Christoph Hellwig wrote: > Hi all, > > this series removes the offset by one refcount for ZONE_DEVICE pages > that are freed back to the driver owning them, which is just device > private ones for now, but also the planned device coherent pages > and the ehanced p2p ones pending. > > It does not address the fsdax pages yet, which will be attacked in a > follow on series. > > Diffstat: > arch/arm64/mm/mmu.c | 1 > arch/powerpc/kvm/book3s_hv_uvmem.c | 1 > drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 2 > drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 > drivers/gpu/drm/drm_cache.c | 2 > drivers/gpu/drm/nouveau/nouveau_dmem.c | 3 - > drivers/gpu/drm/nouveau/nouveau_svm.c | 1 > drivers/infiniband/core/rw.c | 1 > drivers/nvdimm/pmem.h | 1 > drivers/nvme/host/pci.c | 1 > drivers/nvme/target/io-cmd-bdev.c | 1 > fs/Kconfig | 2 > fs/fuse/virtio_fs.c | 1 > include/linux/hmm.h | 9 ---- > include/linux/memremap.h | 22 +++++++++- > include/linux/mm.h | 59 ++++------------------------- > lib/test_hmm.c | 4 + > mm/Kconfig | 4 - > mm/internal.h | 2 > mm/memcontrol.c | 11 +---- > mm/memremap.c | 63 ++++++++++++++++--------------- > mm/migrate.c | 6 -- > mm/swap.c | 49 ++---------------------- > 23 files changed, 90 insertions(+), 157 deletions(-) Looks good to me. I was wondering about the location of some of this code, so it's nice to see it cleaned up. Except for the one minor issue I noted on patch 6, it all looks good to me. I've reviewed all the patches and tested the series under my p2pdma series. Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx> Logan
