Re: [PATCH] remove volatile from nmi.c

From: Andrew Morton
Date: Fri Jul 14 2006 - 13:57:27 EST


On Fri, 14 Jul 2006 10:41:58 -0700 (PDT)
Linus Torvalds <torvalds@xxxxxxxx> wrote:

>
>
> On Fri, 14 Jul 2006, Steven Rostedt wrote:
> >
> > > endflag = 1;
> > > smp_wmb();
> >
> > This was what I originally wrote, and then I saw the set_wmb which made
> > me think that it was the proper way to do things (why else is it
> > there?). So if it shouldn't be used, then we should get rid of it or at
> > least mark it deprecated, otherwise you have people like me thinking
> > that we should use it.
>
> Yeah, we should probably get rid of it. No need to even mark it
> deprecated, since nobody uses it anyway.
>
> At a minimum, I think we should not document it in the locking
> documentation, making people incorrectly think it might be a good idea.
>
> Hmm? Andrew?
>

It has no callers and can be trivially reimplemented by any out-of-tree
caller, so we should be able to remove it immediately.

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