Re: [RFC][PATCH 0/9] Network receive deadlock prevention for NBD

From: Daniel Phillips
Date: Wed Aug 09 2006 - 01:50:30 EST

Evgeniy Polyakov wrote:
On Tue, Aug 08, 2006 at 09:33:25PM +0200, Peter Zijlstra (a.p.zijlstra@xxxxxxxxx) wrote:
"Kernel Summit 2005: Convergence of network and storage paths"

We believe that an approach very much like today's patch set is
necessary for NBD, iSCSI, AoE or the like ever to work reliably. We further believe that a properly working version of at least one of
these subsystems is critical to the viability of Linux as a modern
storage platform.

There is another approach for that - do not use slab allocator for
network dataflow at all. It automatically has all you pros amd if
implemented correctly can have a lot of additional usefull and
high-performance features like full zero-copy and total fragmentation

Agreed. But probably more intrusive than davem would be happy with
at this point.


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