Much improved sendfile(2) kernel implementation

[Andre Oppermann]

Andre Oppermann wrote:
> Gleb Smirnoff wrote:
>> Is there RELENG_6 version of your patch. If there is one, we can test it
>> quite extensively.
> 
> This patch does not fully apply to RELENG_6 as there are some small changes
> and a bit locking differences.  It shouldn't be too hard to adapt it.  You
> won't get TSO speedups though and we can't MFC TSO because it changes the
> ABI+API for network drivers.

Actually forget what I said about TSO.  That can go in as it doesn't change
the ABI and only extends the API in a compatible way.  What can't go in are
the recent VLAN changes but that's completely unrelated to TSO.

-- 
Andre