Idealists may want USE_NSEC to be the default on Linux some day.
Point to a patch to better explain the requirements on
filesystem code for that to happen.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We've removed the workaround for runtime penalty that did not
exist in practice some time ago, but the technical paper that
proposed that change still said "we probably should do so".
Signed-off-by: Junio C Hamano <junkio@cox.net>