Re: [PATCH v2 07/13] mm/gup: Refactor record_subpages() to find 1st small page

From: Jason Gunthorpe
Date: Mon Jan 15 2024 - 13:38:35 EST


On Wed, Jan 03, 2024 at 05:14:17PM +0800, peterx@xxxxxxxxxx wrote:
> From: Peter Xu <peterx@xxxxxxxxxx>
>
> All the fast-gup functions take a tail page to operate, always need to do
> page mask calculations before feeding that into record_subpages().
>
> Merge that logic into record_subpages(), so that it will do the nth_page()
> calculation.
>
> Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
> ---
> mm/gup.c | 25 ++++++++++++++-----------
> 1 file changed, 14 insertions(+), 11 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason