linux-kernel - Re: [PATCH v11 3/4] x86, mce: Add __mcsafe

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Message-ID: <20160218103546.GS6357@twins.programming.kicks-ass.net>
Date:	Thu, 18 Feb 2016 11:35:46 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Tony Luck <tony.luck@...el.com>, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, Borislav Petkov <bp@...en8.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v11 3/4] x86, mce: Add __mcsafe_copy()

On Thu, Feb 18, 2016 at 11:19:42AM +0100, Ingo Molnar wrote:
> > 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()