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Re: [PATCH] Memory fencing problem in pthread cancellation
On 01/15/2013 12:20 PM, Richard Henderson wrote:
On 01/14/2013 07:13 PM, Jeff Law wrote:
I suspect the asm memory clobber is historical, probably introduced to
work around issues with pthread_cancel_init being inlined and the
compiler moving things around too aggressively. One could make an
argument it should be removed.
It's definitely redundant with the atomic_read_barrier you added.
Removed locally, will appear in next patch iteration.