Re: [PATCH v2 11/32] mips: reuse asm-generic/barrier.h

From: Peter Zijlstra
Date: Mon Jan 04 2016 - 08:26:38 EST


On Thu, Dec 31, 2015 at 09:07:10PM +0200, Michael S. Tsirkin wrote:
> -#define smp_store_release(p, v) \
> -do { \
> - compiletime_assert_atomic_type(*p); \
> - smp_mb(); \
> - WRITE_ONCE(*p, v); \
> -} while (0)
> -
> -#define smp_load_acquire(p) \
> -({ \
> - typeof(*p) ___p1 = READ_ONCE(*p); \
> - compiletime_assert_atomic_type(*p); \
> - smp_mb(); \
> - ___p1; \
> -})

David Daney wanted to use fancy new MIPS barriers to provide better
implementations of this.

This patch isn't in the way of that, just a FYI.
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