K 10
svn:author
V 6
adrian
K 8
svn:date
V 27
2013-11-26T02:02:05.412259Z
K 7
svn:log
V 449
Refactor out the sendfile copyout in order to make vn_sendfile()
callable from the kernel.

Right now vn_sendfile() can't be called from anything other than
a syscall handler _and_ return the number of bytes queued.
This simply moves the copyout() to do_sendfile() so that any kernel
code can initiate vn_sendfile() outside of a syscall context.

Tested:

* tiny little sendfile program spitting things out a tcp socket

Sponsored by:	Netflix, Inc.

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