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Date: Wed, 27 Jun 2012 10:45:10 +0200 From: Eric Dumazet <eric.dumazet@...il.com> To: Jesper Dangaard Brouer <brouer@...hat.com> Cc: David Miller <davem@...emloft.net>, hans.schillstrom@...csson.com, subramanian.vijay@...il.com, dave.taht@...il.com, netdev@...r.kernel.org, ncardwell@...gle.com, therbert@...gle.com, mph@...h.dk Subject: Re: [PATCH v2 net-next] tcp: avoid tx starvation by SYNACK packets On Wed, 2012-06-27 at 10:21 +0200, Jesper Dangaard Brouer wrote: > It works because we have a spinlock problem in the code... Perhaps, they > did it, because we have have locking/contention problem, not the other > way around ;-) How about fixing the code instead? ;-))) The socket lock is currently mandatory. It's really _hard_ to remove it, your attempts added a lot of races. I want to do it properly, adding needed RCU and array of spinlocks were appropriate. Hopefully, its easier than the RCU conversion I did for the lookups of ESTABLISHED/TIMEWAIT sockets. -- 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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