On Wed, Nov 16, 2022 at 10:16:34AM -0800, Linus Torvalds wrote:
Following the history of it is a big of a mess, because there's a number of renamings and re-organizations, but it seems to go back to 2007 and commit b6a2fea39318 ("mm: variable length argument support").
I went back and read parts of the discussions with Ollie, and the .force=1 thing just magically appeared one day when we were sending work-in-progress patches back and forth without mention of where it came from :-/
And I certainly can't remember now..
Looking at it now, I have the same reaction as both you and Kees had, it seems entirely superflous. So I'm all for trying to remove it.