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    Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 168f1a71
    Linus Torvalds 提交于
    Pull x86 asm updates from Ingo Molnar:
     "The main changes in this cycle were:
    
       - MSR access API fixes and enhancements (Andy Lutomirski)
    
       - early exception handling improvements (Andy Lutomirski)
    
       - user-space FS/GS prctl usage fixes and improvements (Andy
         Lutomirski)
    
       - Remove the cpu_has_*() APIs and replace them with equivalents
         (Borislav Petkov)
    
       - task switch micro-optimization (Brian Gerst)
    
       - 32-bit entry code simplification (Denys Vlasenko)
    
       - enhance PAT handling in enumated CPUs (Toshi Kani)
    
      ... and lots of other cleanups/fixlets"
    
    * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
      x86/arch_prctl/64: Restore accidentally removed put_cpu() in ARCH_SET_GS
      x86/entry/32: Remove asmlinkage_protect()
      x86/entry/32: Remove GET_THREAD_INFO() from entry code
      x86/entry, sched/x86: Don't save/restore EFLAGS on task switch
      x86/asm/entry/32: Simplify pushes of zeroed pt_regs->REGs
      selftests/x86/ldt_gdt: Test set_thread_area() deletion of an active segment
      x86/tls: Synchronize segment registers in set_thread_area()
      x86/asm/64: Rename thread_struct's fs and gs to fsbase and gsbase
      x86/arch_prctl/64: Remove FSBASE/GSBASE < 4G optimization
      x86/segments/64: When load_gs_index fails, clear the base
      x86/segments/64: When loadsegment(fs, ...) fails, clear the base
      x86/asm: Make asm/alternative.h safe from assembly
      x86/asm: Stop depending on ptrace.h in alternative.h
      x86/entry: Rename is_{ia32,x32}_task() to in_{ia32,x32}_syscall()
      x86/asm: Make sure verify_cpu() has a good stack
      x86/extable: Add a comment about early exception handlers
      x86/msr: Set the return value to zero when native_rdmsr_safe() fails
      x86/paravirt: Make "unsafe" MSR accesses unsafe even if PARAVIRT=y
      x86/paravirt: Add paravirt_{read,write}_msr()
      x86/msr: Carry on after a non-"safe" MSR access fails
      ...
    168f1a71
smpboot.c 40.7 KB