[PATCH 02/16] mm: simplify gup_fast_permitted

[Jason Gunthorpe]

On Tue, Jun 11, 2019 at 04:40:48PM +0200, Christoph Hellwig wrote:
> Pass in the already calculated end value instead of recomputing it, and
> leave the end > start check in the callers instead of duplicating them
> in the arch code.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>  arch/s390/include/asm/pgtable.h   |  8 +-------
>  arch/x86/include/asm/pgtable_64.h |  8 +-------
>  mm/gup.c                          | 17 +++++++----------
>  3 files changed, 9 insertions(+), 24 deletions(-)

Much cleaner

Reviewed-by: Jason Gunthorpe <jgg at mellanox.com>

Jason