On Thu, 2010-06-24 at 13:02 +1000, npiggin@xxxxxxx wrote: > Use RCU property of dcache to simplify locking in some places where we > take d_parent and d_lock. > > Comment: don't need rcu_deref because we take the spinlock and recheck it. But does the LOCK barrier imply a DATA DEPENDENCY barrier? (It does on x86, and the compiler barrier implied by spin_lock() suffices to replace ACCESS_ONCE()). -- 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
