Messages in this thread | | | Date | Thu, 10 Feb 2022 11:36:23 -0600 | Subject | Re: start sorting out the ZONE_DEVICE refcount mess v2 | From | "Sierra Guiza, Alejandro (Alex)" <> |
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Christoph, Thanks a lot for rebase our patches. I just ran our amdgpu hmm-tests with this series and all passed.
Regards, Alex Sierra
On 2/10/2022 1:28 AM, 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. > > Note that if we want to get the p2p series rebased on top of this > we'll need a git branch for this series. I could offer to host one. > > A git tree is available here: > > git://git.infradead.org/users/hch/misc.git pgmap-refcount > > Gitweb: > > http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/pgmap-refcount > > Changes since v1: > - add a missing memremap.h include in memcontrol.c > - include rebased versions of the device coherent support and > device coherent migration support series as well as additional > cleanup patches > > Diffstt: > arch/arm64/mm/mmu.c | 1 > arch/powerpc/kvm/book3s_hv_uvmem.c | 1 > drivers/gpu/drm/amd/amdkfd/kfd_migrate.c | 35 - > 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 | 36 + > include/linux/migrate.h | 1 > include/linux/mm.h | 59 -- > lib/test_hmm.c | 353 ++++++++++--- > lib/test_hmm_uapi.h | 22 > mm/Kconfig | 7 > mm/Makefile | 1 > mm/gup.c | 127 +++- > mm/internal.h | 3 > mm/memcontrol.c | 19 > mm/memory-failure.c | 8 > mm/memremap.c | 75 +- > mm/migrate.c | 763 ---------------------------- > mm/migrate_device.c | 822 +++++++++++++++++++++++++++++++ > mm/rmap.c | 5 > mm/swap.c | 49 - > tools/testing/selftests/vm/Makefile | 2 > tools/testing/selftests/vm/hmm-tests.c | 204 ++++++- > tools/testing/selftests/vm/test_hmm.sh | 24 > 33 files changed, 1552 insertions(+), 1088 deletions(-)
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