• Linus Torvalds's avatar
    Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 0f657262
    Linus Torvalds authored
    Pull x86 mm updates from Ingo Molnar:
     "Various x86 low level modifications:
    
       - preparatory work to support virtually mapped kernel stacks (Andy
         Lutomirski)
    
       - support for 64-bit __get_user() on 32-bit kernels (Benjamin
         LaHaise)
    
       - (involved) workaround for Knights Landing CPU erratum (Dave Hansen)
    
       - MPX enhancements (Dave Hansen)
    
       - mremap() extension to allow remapping of the special VDSO vma, for
         purposes of user level context save/restore (Dmitry Safonov)
    
       - hweight and entry code cleanups (Borislav Petkov)
    
       - bitops code generation optimizations and cleanups with modern GCC
         (H. Peter Anvin)
    
       - syscall entry code optimizations (Paolo Bonzini)"
    
    * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits)
      x86/mm/cpa: Add missing comment in populate_pdg()
      x86/mm/cpa: Fix populate_pgd(): Stop trying to deallocate failed PUDs
      x86/syscalls: Add compat_sys_preadv64v2/compat_sys_pwritev64v2
      x86/smp: Remove unnecessary initialization of thread_info::cpu
      x86/smp: Remove stack_smp_processor_id()
      x86/uaccess: Move thread_info::addr_limit to thread_struct
      x86/dumpstack: Rename thread_struct::sig_on_uaccess_error to sig_on_uaccess_err
      x86/uaccess: Move thread_info::uaccess_err and thread_info::sig_on_uaccess_err to thread_struct
      x86/dumpstack: When OOPSing, rewind the stack before do_exit()
      x86/mm/64: In vmalloc_fault(), use CR3 instead of current->active_mm
      x86/dumpstack/64: Handle faults when printing the "Stack: " part of an OOPS
      x86/dumpstack: Try harder to get a call trace on stack overflow
      x86/mm: Remove kernel_unmap_pages_in_pgd() and efi_cleanup_page_tables()
      x86/mm/cpa: In populate_pgd(), don't set the PGD entry until it's populated
      x86/mm/hotplug: Don't remove PGD entries in remove_pagetable()
      x86/mm: Use pte_none() to test for empty PTE
      x86/mm: Disallow running with 32-bit PTEs to work around erratum
      x86/mm: Ignore A/D bits in pte/pmd/pud_none()
      x86/mm: Move swap offset/type up in PTE to work around erratum
      x86/entry: Inline enter_from_user_mode()
      ...
    0f657262
smpboot.c 41.2 KB