Messages in this thread | | | Date | Tue, 14 Jun 2005 23:18:08 +0900 | From | junjie cai <> | Subject | is synchronize_net in inet_register_protosw necessary? |
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hi all. i am a newbie to linux kernel. in a arm926 board i found that it took about 30ms to finish the (net/ipv4/af_inet.c:898) inet_register_protosw because of the synchronize_net call during profiling. synchronize_net finally calls synchronize_rcu, so i think this is to make the change visiable after a list_add_rcu. but according to the Document/listRCU.txt it seems that a list insertation does not necessarily do call_rcu etc. may i have any mistakes, please kindly tell me. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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