Re: [RFC][PATCH] splice: Prevent gifting of multipage folios

[David Howells]

Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:

> What should the Fixes: here be?  This was already possible with THPs
> (both anon and tmpfs backed) long before I introduced folios.

Good question.  How do I tell when THPs were introduced?  It looks like they
might predate git, looking at free_compound_page()'s comment.

David