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SubjectRe: patch for 2.1.90 net/core/iovec et al

Bill, memcpy_toiovec() must return the amount data not copied
successfully when a fault occurs. The reason is that tcp_do_recvmsg()
in tcp.c must be able to move the "read sequence" byte count back
should memcpy_toiovec() fail mid-stream. Browse the call to
memcpy_toiovec() in there for details.

So please change this back in your patches.

Later,
David S. Miller
davem@dm.cobaltmicro.com

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