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2.39.1.405.gd4c25cc71f-goog Message-ID: <20230125083851.27759-1-surenb@google.com> Subject: [PATCH v2 0/6] introduce vm_flags modifier functions From: Suren Baghdasaryan To: akpm@linux-foundation.org Cc: michel@lespinasse.org, jglisse@google.com, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, mgorman@techsingularity.net, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, peterz@infradead.org, ldufour@linux.ibm.com, paulmck@kernel.org, luto@kernel.org, songliubraving@fb.com, peterx@redhat.com, david@redhat.com, dhowells@redhat.com, hughd@google.com, bigeasy@linutronix.de, kent.overstreet@linux.dev, punit.agrawal@bytedance.com, lstoakes@gmail.com, peterjung1337@gmail.com, rientjes@google.com, axelrasmussen@google.com, joelaf@google.com, minchan@google.com, jannh@google.com, shakeelb@google.com, tatashin@google.com, edumazet@google.com, gthelen@google.com, gurua@google.com, arjunroy@google.com, soheil@google.com, hughlynch@google.com, leewalsh@google.com, posk@google.com, will@kernel.org, aneesh.kumar@linux.ibm.com, npiggin@gmail.com, chenhuacai@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, richard@nod.at, anton.ivanov@cambridgegreys.com, johannes@sipsolutions.net, qianweili@huawei.com, wangzhou1@hisilicon.com, herbert@gondor.apana.org.au, davem@davemloft.net, vkoul@kernel.org, airlied@gmail.com, daniel@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, l.stach@pengutronix.de, krzysztof.kozlowski@linaro.org, patrik.r.jakobsson@gmail.com, matthias.bgg@gmail.com, robdclark@gmail.com, quic_abhinavk@quicinc.com, dmitry.baryshkov@linaro.org, tomba@kernel.org, hjc@rock-chips.com, heiko@sntech.de, ray.huang@amd.com, kraxel@redhat.com, sre@kernel.org, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, tfiga@chromium.org, m.szyprowski@samsung.com, mchehab@kernel.org, dimitri.sivanich@hpe.com, zhangfei.gao@linaro.org, jejb@linux.ibm.com, 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dmaengine@vger.kernel.org, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, etnaviv@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-stm32@st-md-mailman.stormreply.com, linux-rdma@vger.kernel.org, linux-media@vger.kernel.org, linux-accelerators@lists.ozlabs.org, sparclinux@vger.kernel.org, linux-scsi@vger.kernel.org, linux-staging@lists.linux.dev, target-devel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, kexec@lists.infradead.org, linux-xfs@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, kasan-dev@googlegroups.com, selinux@vger.kernel.org, alsa-devel@alsa-project.org, kernel-team@android.com, surenb@google.com Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This patchset was originally published as a part of per-VMA locking [1] and was split after suggestion that it's viable on its own and to facilitate the review process. It is now a preprequisite for the next version of per-VMA lock patchset, which reuses vm_flags modifier functions to lock the VMA when vm_flags are being updated. VMA vm_flags modifications are usually done under exclusive mmap_lock protection because this attrubute affects other decisions like VMA merging or splitting and races should be prevented. Introduce vm_flags modifier functions to enforce correct locking. [1] https://lore.kernel.org/all/20230109205336.3665937-1-surenb@google.com/ The patchset applies cleanly over mm-unstable branch of mm tree. My apologies for an extremely large distribution list. The patch touches lots of files and many are in arch/ and drivers/. Suren Baghdasaryan (6): mm: introduce vma->vm_flags modifier functions mm: replace VM_LOCKED_CLEAR_MASK with VM_LOCKED_MASK mm: replace vma->vm_flags direct modifications with modifier calls mm: replace vma->vm_flags indirect modification in ksm_madvise mm: introduce mod_vm_flags_nolock and use it in untrack_pfn mm: export dump_mm() arch/arm/kernel/process.c | 2 +- arch/ia64/mm/init.c | 8 +-- arch/loongarch/include/asm/tlb.h | 2 +- arch/powerpc/kvm/book3s_hv_uvmem.c | 5 +- arch/powerpc/kvm/book3s_xive_native.c | 2 +- arch/powerpc/mm/book3s64/subpage_prot.c | 2 +- arch/powerpc/platforms/book3s/vas-api.c | 2 +- arch/powerpc/platforms/cell/spufs/file.c | 14 ++--- arch/s390/mm/gmap.c | 8 +-- arch/x86/entry/vsyscall/vsyscall_64.c | 2 +- arch/x86/kernel/cpu/sgx/driver.c | 2 +- arch/x86/kernel/cpu/sgx/virt.c | 2 +- arch/x86/mm/pat/memtype.c | 14 +++-- arch/x86/um/mem_32.c | 2 +- drivers/acpi/pfr_telemetry.c | 2 +- drivers/android/binder.c | 3 +- drivers/char/mspec.c | 2 +- drivers/crypto/hisilicon/qm.c | 2 +- drivers/dax/device.c | 2 +- drivers/dma/idxd/cdev.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +- drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 4 +- drivers/gpu/drm/amd/amdkfd/kfd_doorbell.c | 4 +- drivers/gpu/drm/amd/amdkfd/kfd_events.c | 4 +- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 4 +- drivers/gpu/drm/drm_gem.c | 2 +- drivers/gpu/drm/drm_gem_dma_helper.c | 3 +- drivers/gpu/drm/drm_gem_shmem_helper.c | 2 +- drivers/gpu/drm/drm_vm.c | 8 +-- drivers/gpu/drm/etnaviv/etnaviv_gem.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_gem.c | 4 +- drivers/gpu/drm/gma500/framebuffer.c | 2 +- drivers/gpu/drm/i810/i810_dma.c | 2 +- drivers/gpu/drm/i915/gem/i915_gem_mman.c | 4 +- drivers/gpu/drm/mediatek/mtk_drm_gem.c | 2 +- drivers/gpu/drm/msm/msm_gem.c | 2 +- drivers/gpu/drm/omapdrm/omap_gem.c | 3 +- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 3 +- drivers/gpu/drm/tegra/gem.c | 5 +- drivers/gpu/drm/ttm/ttm_bo_vm.c | 3 +- drivers/gpu/drm/virtio/virtgpu_vram.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c | 2 +- drivers/gpu/drm/xen/xen_drm_front_gem.c | 3 +- drivers/hsi/clients/cmt_speech.c | 2 +- drivers/hwtracing/intel_th/msu.c | 2 +- drivers/hwtracing/stm/core.c | 2 +- drivers/infiniband/hw/hfi1/file_ops.c | 4 +- drivers/infiniband/hw/mlx5/main.c | 4 +- drivers/infiniband/hw/qib/qib_file_ops.c | 13 +++-- drivers/infiniband/hw/usnic/usnic_ib_verbs.c | 2 +- .../infiniband/hw/vmw_pvrdma/pvrdma_verbs.c | 2 +- .../common/videobuf2/videobuf2-dma-contig.c | 2 +- .../common/videobuf2/videobuf2-vmalloc.c | 2 +- drivers/media/v4l2-core/videobuf-dma-contig.c | 2 +- drivers/media/v4l2-core/videobuf-dma-sg.c | 4 +- drivers/media/v4l2-core/videobuf-vmalloc.c | 2 +- drivers/misc/cxl/context.c | 2 +- drivers/misc/habanalabs/common/memory.c | 2 +- drivers/misc/habanalabs/gaudi/gaudi.c | 4 +- drivers/misc/habanalabs/gaudi2/gaudi2.c | 8 +-- drivers/misc/habanalabs/goya/goya.c | 4 +- drivers/misc/ocxl/context.c | 4 +- drivers/misc/ocxl/sysfs.c | 2 +- drivers/misc/open-dice.c | 4 +- drivers/misc/sgi-gru/grufile.c | 4 +- drivers/misc/uacce/uacce.c | 2 +- drivers/sbus/char/oradax.c | 2 +- drivers/scsi/cxlflash/ocxl_hw.c | 2 +- drivers/scsi/sg.c | 2 +- .../staging/media/atomisp/pci/hmm/hmm_bo.c | 2 +- drivers/staging/media/deprecated/meye/meye.c | 4 +- .../media/deprecated/stkwebcam/stk-webcam.c | 2 +- drivers/target/target_core_user.c | 2 +- drivers/uio/uio.c | 2 +- drivers/usb/core/devio.c | 3 +- drivers/usb/mon/mon_bin.c | 3 +- drivers/vdpa/vdpa_user/iova_domain.c | 2 +- drivers/vfio/pci/vfio_pci_core.c | 2 +- drivers/vhost/vdpa.c | 2 +- drivers/video/fbdev/68328fb.c | 2 +- drivers/video/fbdev/core/fb_defio.c | 4 +- drivers/xen/gntalloc.c | 2 +- drivers/xen/gntdev.c | 4 +- drivers/xen/privcmd-buf.c | 2 +- drivers/xen/privcmd.c | 4 +- fs/aio.c | 2 +- fs/cramfs/inode.c | 2 +- fs/erofs/data.c | 2 +- fs/exec.c | 4 +- fs/ext4/file.c | 2 +- fs/fuse/dax.c | 2 +- fs/hugetlbfs/inode.c | 4 +- fs/orangefs/file.c | 3 +- fs/proc/task_mmu.c | 2 +- fs/proc/vmcore.c | 3 +- fs/userfaultfd.c | 2 +- fs/xfs/xfs_file.c | 2 +- include/linux/mm.h | 51 +++++++++++++++++-- include/linux/mm_types.h | 8 ++- include/linux/pgtable.h | 5 +- kernel/bpf/ringbuf.c | 4 +- kernel/bpf/syscall.c | 4 +- kernel/events/core.c | 2 +- kernel/fork.c | 2 +- kernel/kcov.c | 2 +- kernel/relay.c | 2 +- mm/debug.c | 1 + mm/hugetlb.c | 4 +- mm/khugepaged.c | 2 + mm/ksm.c | 2 + mm/madvise.c | 2 +- mm/memory.c | 19 +++---- mm/memremap.c | 4 +- mm/mlock.c | 12 ++--- mm/mmap.c | 32 +++++++----- mm/mprotect.c | 2 +- mm/mremap.c | 8 +-- mm/nommu.c | 11 ++-- mm/secretmem.c | 2 +- mm/shmem.c | 2 +- mm/vmalloc.c | 2 +- net/ipv4/tcp.c | 4 +- security/selinux/selinuxfs.c | 6 +-- sound/core/oss/pcm_oss.c | 2 +- sound/core/pcm_native.c | 9 ++-- sound/soc/pxa/mmp-sspa.c | 2 +- sound/usb/usx2y/us122l.c | 4 +- sound/usb/usx2y/usX2Yhwdep.c | 2 +- sound/usb/usx2y/usx2yhwdeppcm.c | 2 +- 129 files changed, 292 insertions(+), 233 deletions(-)