On 09/10/2015 11:04, Kosuke Tatsukawa wrote: > smp_store_mb() called from set_current_state(), which is called from > prepare_to_wait() should prevent reordering such as below from > happening. wait_event*() also calls set_current_state() inside.
Ah, I missed that set_current_state has a memory barrier in it. The patch is okay, but please expand the comment to say that this memory barrier pairs with prepare_to_wait's set_current_state(). Paolo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
