On Fri, 2022-06-10 at 17:35 +0300, Kirill A. Shutemov wrote: > Intel Linear Address Masking (LAM) brings per-mm untagging rules. > Pass > down mm_struct to the untagging helper. It will help to apply > untagging > policy correctly. > > In most cases, current->mm is the one to use, but there are some > exceptions, such as get_user_page_remote(). > > Move dummy implementation of untagged_addr() from <linux/mm.h> to > <linux/uaccess.h>. <asm/uaccess.h> can override the implementation. > Moving the dummy header outside <linux/mm.h> helps to avoid header > hell > if you need to defer mm_struct within the helper. > > Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > --- > arch/arm64/include/asm/memory.h | 4 ++-- > arch/arm64/include/asm/signal.h | 2 +- > arch/arm64/include/asm/uaccess.h | 4 ++-- > arch/arm64/kernel/hw_breakpoint.c | 2 +- > arch/arm64/kernel/traps.c | 4 ++-- > arch/arm64/mm/fault.c | 10 +++++----- > arch/sparc/include/asm/pgtable_64.h | 2 +- > arch/sparc/include/asm/uaccess_64.h | 2 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 2 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +- > drivers/gpu/drm/radeon/radeon_gem.c | 2 +- > drivers/infiniband/hw/mlx4/mr.c | 2 +- > drivers/media/common/videobuf2/frame_vector.c | 2 +- > drivers/media/v4l2-core/videobuf-dma-contig.c | 2 +- > drivers/staging/media/atomisp/pci/hmm/hmm_bo.c | 2 +- > drivers/tee/tee_shm.c | 2 +- > drivers/vfio/vfio_iommu_type1.c | 2 +- > fs/proc/task_mmu.c | 2 +- > include/linux/mm.h | 11 ----------- > include/linux/uaccess.h | 11 +++++++++++ > lib/strncpy_from_user.c | 2 +- > lib/strnlen_user.c | 2 +- > mm/gup.c | 6 +++--- > mm/madvise.c | 2 +- > mm/mempolicy.c | 6 +++--- > mm/migrate.c | 2 +- > mm/mincore.c | 2 +- > mm/mlock.c | 4 ++-- > mm/mmap.c | 2 +- > mm/mprotect.c | 2 +- > mm/mremap.c | 2 +- > mm/msync.c | 2 +- > virt/kvm/kvm_main.c | 2 +- > 33 files changed, 55 insertions(+), 53 deletions(-) Reviewed-by: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>
