On Thu, Aug 16, 2007 at 07:41:46AM +0800, Herbert Xu wrote:
> On Wed, Aug 15, 2007 at 11:45:20AM -0700, Paul E. McKenney wrote:
> > On Wed, Aug 15, 2007 at 07:19:57PM +0100, David Howells wrote:
> > > Herbert Xu <[EMAIL PROTECTED]> wrote:
> > >
> > > > Let's turn this around. Can you give a single example where
> > > > the volatile semantics is needed in a legitimate way?
> > >
> > > Accessing H/W registers? But apart from that...
> >
> > Communicating between process context and interrupt/NMI handlers using
> > per-CPU variables.
>
> Remeber we're talking about atomic_read/atomic_set. Please
> cite the actual file/function name you have in mind.
Yep, we are indeed talking about atomic_read()/atomic_set().
We have been through this issue already in this thread.
Thanx, Paul
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