Subject: Re: [PATCH v4 4/5] mm: change lookup_node() to use get_user_pages_fast()
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 3 Feb 2022 23:27:09 -0800
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Peter Xu <peterx@xxxxxxxxxx>, Jason Gunthorpe <jgg@xxxxxxxx>, David Hildenbrand <david@xxxxxxxxxx>, Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>, Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>, Christoph Hellwig <hch@xxxxxxxxxxxxx>, Matthew Wilcox <willy@xxxxxxxxxxxxx>, Jan Kara <jack@xxxxxxx>, "Kirill A . Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>, Alex Williamson <alex.williamson@xxxxxxxxxx>, Andrea Arcangeli <aarcange@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, linux-mm@xxxxxxxxx, Jason Gunthorpe <jgg@xxxxxxxxxx>