Re: [RFC]: Support for zero-copy TCP transmit of user space data

From: David M. Lloyd
Date: Thu Dec 18 2008 - 14:11:59 EST


On 12/18/2008 12:35 PM, Vladislav Bolkhovitin wrote:
An iSCSI target driver iSCSI-SCST was a part of the patchset (http://lkml.org/lkml/2008/12/10/293). For it a nice optimization to have TCP zero-copy transmit of user space data was implemented. Patch, implementing this optimization was also sent in the patchset, see http://lkml.org/lkml/2008/12/10/296.

I'm probably ignorant of about 90% of the context here, but isn't this the sort of problem that was supposed to have been solved by vmsplice(2)?

- DML

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