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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