Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures

On Thu, Aug 16, 2007 at 08:30:23AM +0800, Herbert Xu wrote:

On Wed, Aug 15, 2007 at 05:23:10PM -0700, Paul E. McKenney wrote:

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On Thu, Aug 16, 2007 at 08:12:48AM +0800, Herbert Xu wrote:

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On Wed, Aug 15, 2007 at 04:53:35PM -0700, Paul E. McKenney wrote:

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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.

Sorry, but I must've missed it.  Could you cite the file or
function for my benefit?

I might summarize the thread if there is interest, but I am not able to
do so right this minute.

Thanks.  But I don't need a summary of the thread, I'm asking
for an extant code snippet in our kernel that benefits from
the volatile change and is not part of a busy-wait.

Sorry, can't help you there.  I really do believe that the information
you need (as opposed to the specific item you are asking for) really
has been put forth in this thread.

						Thanx, Paul