Le vendredi 20 août 2010 à 11:04 -0400, yao zhao a écrit : > The code here is deleting a global from the list, am I right? I didn't > see any called case. > what are you going to do more? free it? write_unlock_bh should make the mb. If you dont wait _after_ delete from list and following actions (kfree() without a call_rcu(), or module unload, or whatever), a reader might access your data/code and crash the box. spin_unlock_bh() wont help you at all, since only writers are freezed by the lock (since readers only hold rcu_lock) Documentation/RCU/whatisRCU.txt line 705 Documentation/RCU/checklist.txt 15) -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
