Re: [linux-next PATCH] mm/gup.c: Convert to use get_user_{page|pages}_fast_only()

From: Paul Mackerras
Date: Tue May 26 2020 - 03:59:16 EST

On Mon, May 25, 2020 at 02:23:32PM +0530, Souptick Joarder wrote:
> API __get_user_pages_fast() renamed to get_user_pages_fast_only()
> to align with pin_user_pages_fast_only().
> As part of this we will get rid of write parameter.
> Instead caller will pass FOLL_WRITE to get_user_pages_fast_only().
> This will not change any existing functionality of the API.
> All the callers are changed to pass FOLL_WRITE.
> Also introduce get_user_page_fast_only(), and use it in a few
> places that hard-code nr_pages to 1.
> Updated the documentation of the API.
> Signed-off-by: Souptick Joarder <jrdr.linux@xxxxxxxxx>

The arch/powerpc/kvm bits look reasonable.

Reviewed-by: Paul Mackerras <paulus@xxxxxxxxxx>