On Wed, 2013-01-02 at 19:32 +0000, Eric Wong wrote: > That modification in ep_send_events_proc() is protected by ep->mtx > (as is ep_modify()), though. Maybe there are other places, but I > don't see it. Yes, and using a mutex for protecting this field while its read from interrupt context (so without mutex synch help) is why there were races. Some users rely on barriers included in spin_lock/spin_unlock, others in explicit barriers, or before your patch pure luck. -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
