Re: [PATCH] seqlock: don't smp_rmb in seqlock reader spin loop
From: Andi Kleen <hidden>
Date: 2011-05-12 14:08:43
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On Thu, May 12, 2011 at 04:13:54AM -0500, Milton Miller wrote:
Move the smp_rmb after cpu_relax loop in read_seqlock and add ACCESS_ONCE to make sure the test and return are consistent. A multi-threaded core in the lab didn't like the update
Which core was that? -Andi