Re: [RFC][PATCH] splice: Prevent gifting of multipage folios
From: David Howells
Date: Mon Feb 27 2023 - 10:25:12 EST
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