Messages in this thread | | | Date | Wed, 15 Aug 2007 11:45:20 -0700 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures |
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On Wed, Aug 15, 2007 at 07:19:57PM +0100, David Howells wrote: > Herbert Xu <herbert@gondor.apana.org.au> 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.
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