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Groups > linux.kernel > #1337435

RE: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy()

From "Luck, Tony" <tony.luck@intel.com>
Newsgroups linux.kernel
Subject RE: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy()
Date 2016-02-18 16:00 +0100
Message-ID <r3ydI-77V-11@gated-at.bofh.it> (permalink)
References (1 earlier) <r3f1p-1O1-45@gated-at.bofh.it> <r3s8j-2Pa-19@gated-at.bofh.it> <r3txo-3CY-19@gated-at.bofh.it> <r3u0r-44o-33@gated-at.bofh.it> <r3ua5-49t-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> > > I think the whole notion of mcsafe here is 'wrong'. This copy variant simply 
> > > reports the kind of trap that happened (#PF or #MC) and could arguably be 
> > > extended to include more types if the hardware were to generate more.
> > 
> > What would a better name be? memcpy_ret() or so?
>
> Yeah, uhmm.. naming. More options from the lack of inspiration department:
>
>   memcpy_trap()
>   memcpy_ex()

I like "memcpy_trap" - thanks Peter.  I'll redo this part with all the other fixes
suggested by Ingo.

-Tony

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Thread

[PATCH v11 0/4] Machine check recovery when kernel accesses poison Tony Luck <tony.luck@intel.com> - 2016-02-17 19:30 +0100
  [PATCH v11 4/4] x86: Create a new synthetic cpu capability for  machine check recovery Tony Luck <tony.luck@intel.com> - 2016-02-17 19:30 +0100
    [tip:x86/asm] x86/cpufeature:   Create a new synthetic cpu capability for machine check recovery tip-bot for Tony Luck <tipbot@zytor.com> - 2016-02-18 11:30 +0100
  [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Tony Luck <tony.luck@intel.com> - 2016-02-17 19:30 +0100
    Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 09:30 +0100
      Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Peter Zijlstra <peterz@infradead.org> - 2016-02-18 11:00 +0100
        Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Borislav Petkov <bp@alien8.de> - 2016-02-18 11:30 +0100
        Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 11:30 +0100
          Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Peter Zijlstra <peterz@infradead.org> - 2016-02-18 11:40 +0100
            RE: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() "Luck, Tony" <tony.luck@intel.com> - 2016-02-18 16:00 +0100
        Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-19 09:00 +0100
          Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Peter Zijlstra <peterz@infradead.org> - 2016-02-19 09:50 +0100
            Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-19 11:00 +0100
      Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 11:40 +0100
        Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Borislav Petkov <bp@alien8.de> - 2016-02-18 11:40 +0100
          Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 19:50 +0100
      Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Borislav Petkov <bp@alien8.de> - 2016-02-18 11:40 +0100
      [PATCH v12] x86, mce: Add memcpy_trap() "Luck, Tony" <tony.luck@intel.com> - 2016-02-18 22:20 +0100
        Re: [PATCH v12] x86, mce: Add memcpy_trap() Ingo Molnar <mingo@kernel.org> - 2016-02-19 10:20 +0100
          Re: [PATCH v13] x86, mce: Add memcpy_trap() "Luck, Tony" <tony.luck@intel.com> - 2016-02-19 19:00 +0100
    Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Linus Torvalds <torvalds@linux-foundation.org> - 2016-02-18 19:20 +0100
      Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() "Luck, Tony" <tony.luck@intel.com> - 2016-02-18 20:00 +0100
        Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 21:20 +0100
          Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Dan Williams <dan.j.williams@intel.com> - 2016-02-18 22:40 +0100
      Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy() Ingo Molnar <mingo@kernel.org> - 2016-02-18 20:00 +0100

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