Chris Metcalf d356b595e5 arch/tile: Fix atomic_read() definition to use ACCESS_ONCE
This adds the volatile cast which forces the compiler to emit the load.
Suggested by Peter Zijlstra <peterz@infradead.org>.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2011-02-25 08:46:38 -05:00
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