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Date: Thu, 7 Feb 2008 21:32:30 -0800 From: Glenn Griffin <ggriffin.kernel@...il.com> To: Eric Dumazet <dada1@...mosbay.com> Cc: Evgeniy Polyakov <johnpol@....mipt.ru>, Glenn Griffin <ggriffin.kernel@...il.com>, Alan Cox <alan@...rguk.ukuu.org.uk>, Andi Kleen <andi@...stfloor.org>, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] Add IPv6 support to TCP SYN cookies > Or maybe use percpu storage for that... That seems like a good approach. I'll incorporate it into my v6 patch, and send out an update. Thanks. > I am not sure if cookie_hash() is always called with preemption disabled. > (If not, we have to use get_cpu_var()/put_cpu_var()) cookie_hash is always called within NET_RX_SOFTIRQ context so I believe preemption will always be disabled by __do_softirq(). So there shouldn't be a need to use get_cpu_var/put_cpu_var, somebody correct me if I'm wrong. --Glenn -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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