On Mon, Feb 21, 2011 at 2:48 AM, Nicholas A. Bellinger
[off-list ref] wrote:

+       atomic_t                cmd_done;
+       atomic_t                cmd_stop_free;

What's the point of using atomic_t here?  AFAICT, you only use
atomic_set and atomic_read with them, which have no special
ordering powers (look at what those macros expand to).

 - R.
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