Re: [PATCH 1/2] mm: Allow architectures to request 'old' entries when prefaulting

From: Kirill A. Shutemov
Date: Sat Dec 19 2020 - 07:43:29 EST


On Fri, Dec 18, 2020 at 10:56:55AM -0800, Linus Torvalds wrote:
> No?

Okay, but we only win the NULL check. xas_retry() and xa_is_value() has to
be repeated in the beginning of the loop.