From: dagriego@gmail.com (David Griego)
Date: Tue, 27 Mar 2007 14:47:54 -0700

Adds an IOCTL for aborting established TCP connections, and is
designed to be an HA performance improvement for cleaning up, failure 
notification, and application termination.

Signed-off-by:  David Griego <redacted>

SO_LINGER with a zero linger time plus close() isn't working
properly?

There is no reason for this ioctl at all.  Either existing
facilities provide what you need or what you want is a
protocol violation we can't do.