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由 Peter Hurley 提交于
Clarify flip buffer producer/consumer operation; the use of smp_load_acquire() and smp_store_release() more clearly indicates which memory access requires a barrier. Signed-off-by: NPeter Hurley <peter@hurleysoftware.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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