Re: [PATCH v4 1/5] mm: Fix invalid page pointer returned with FOLL_PIN gups

From: John Hubbard
Date: Mon Feb 07 2022 - 00:51:21 EST


On 2/3/22 23:25, Christoph Hellwig wrote:
On Thu, Feb 03, 2022 at 06:00:06PM -0800, John Hubbard wrote:
From: Peter Xu <peterx@xxxxxxxxxx>

Alex reported invalid page pointer returned with pin_user_pages_remote() from
vfio after upstream commit 4b6c33b32296 ("vfio/type1: Prepare for batched
pinning with struct vfio_batch").

This commit message uses overly long lines all over.

I'll reflow it to 72 columns and post a v5 with the full set of
reviewed-by tags.


Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

I appreciate the reviews, from you and everyone, as always.


thanks,
--
John Hubbard
NVIDIA