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Date: Tue, 21 Apr 2009 23:13:22 +0200 From: Johann Baudy <johann.baudy@...-log.net> To: Christoph Lameter <cl@...ux.com> Cc: netdev@...r.kernel.org Subject: Re: [PATCH] TX_RING and packet mmap > Doesnt the kernel need some way to synchronize the two > transitions made by the kernel? From "send request" to "sending" and then > to "available"? Otherwise the kernel may set the request to "available" > before the change from "send request" to "sending" is complete. This synchronization is performed through skb mechanism. "send request" to "sending" is done before submitting skb to device. "sending" to "available" will be performed in skb destructor. -- 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