On Tue, Nov 27, 2018 at 8:49 AM Christopher Lameter <c...@linux.com> wrote: > > A process has no refcount on a page struct and is waiting for it to become > unlocked? Why? Should it not simply ignore that page and continue?
The problem isn't that you can just "continue".
You need to *retry*.
And you can't just busy-loop. You want to wait until the page state
has changed, and _then_ retry.
Linus
