Re: [PATCH v5 0/5] mm/gup: some cleanups

[John Hubbard]

On 2/6/22 22:22, John Hubbard wrote:
> Hi,
>
> Here's an update, mainly just collecting reviewed-by tags:
>
> Changes since v4:
>
>      * Patch 1: reflowed the commit description to 72 columns.
>
>      * Added reviewed-by's from Christoph and Jan for remaining patches.
>
>      * Rebased onto 5.17-rc3.

Hi Andrew,

Is this OK to put in mmotm yet? All the patches here have been reviewed.
And this small series also does not conflict with Willy's "[PATCH 00/75]
MM folio patches for 5.18" series.


thanks,
John Hubbard

> Changes since v3:
>
>      * Patch 1: Commit log: removed a reference to an out of tree module,
>        and updated tags and added a short note to that effect.
>
>      * Patch 2: Fixed up do_move_pages(), to squash -EEXIST returns from
>        follow_page() into something that move_pages() allows: -EFAULT.
>        This is from reviews by Jan Kara, Matthew Wilcox, Jason Gunthorpe.
>
>        Removed all Reviewed-by tags for this patch, due to that update.
>
>      * Patch 4: Split into two patches, as recommended by Christoph
>        Hellwig. Left the Reviewed-by tags intact because no code changes
>        were required.
>
>      * Added Reviewed-by tags from Claudio Imbrenda.
>
> Changes since v2:
>
>      * Patch 2: Removed an unnecessary line that was causing a
>        clang-analyzer complaint, as reported by Lukas Bulwahn
>        [1] (thanks!), and retested locally.
>
>        Jason: I've boldly left your Reviewed-by tag on this patch,
>        because I am predicting you'll agree with it...
>
>      * Added Reviewed-by tags from Jan Kara, Christoph Hellwig, and
>        Jason Gunthorpe that have collected since v2.
>
>
> Changes since v1:
>      * Patch 4: changed from get_user_pages(), to get_user_pages_fast().
>
>      * Patch 4: Rewrote the commit description--thanks to Jan Kara for
>                 that feedback.
>
>      * Patch 1: Removed Jerome's Cc from patch 1, due to a stale email
>                 address.
>
>      * Added Reviewed-by's from David Hildenbrand and Jason Gunthorpe.
>
> Original cover letter, updated as necessary:
>
> I'm including Peter's patch as the first one in this tiny series. (The
> commit description has my r-b tag in place of my Cc, and removes
> Jerome's Cc because he is no longer at redhat.com) The second patch is
> what I had in mind for a follow-up to that, when we were discussing that
> fix [2].
>
> Plus, a couple more small removals that I had queued up:
>
> The third patch removes a completely unused routine:
> pin_user_pages_locked().
>
> The forth patch removes a similar routine, get_user_pages_locked(), that
> only has one caller. It now calls get_user_pages_fast(), instead.
>
> v1 of this patchset is here:
> https://lore.kernel.org/all/20220131051752.447699-1-jhubbard@xxxxxxxxxx/
>
> v2:
> https://lore.kernel.org/r/20220201101108.306062-1-jhubbard@xxxxxxxxxx
>
> v3:
> https://lore.kernel.org/r/20220203093232.572380-1-jhubbard@xxxxxxxxxx
>
> v4:
> https://lore.kernel.org/r/20220204020010.68930-1-jhubbard@xxxxxxxxxx
>
>
> [1] https://lore.kernel.org/r/CAKXUXMxFK9bo8jDoRZbQ0r2j-JwAGg3Xc5cpAcLaHfwHddJ7ew@xxxxxxxxxxxxxx
>
> [2] https://lore.kernel.org/all/20220125033700.69705-1-peterx@xxxxxxxxxx/
>
>
> John Hubbard (4):
>    mm/gup: follow_pfn_pte(): -EEXIST cleanup
>    mm/gup: remove unused pin_user_pages_locked()
>    mm: change lookup_node() to use get_user_pages_fast()
>    mm/gup: remove unused get_user_pages_locked()
>
> Peter Xu (1):
>    mm: Fix invalid page pointer returned with FOLL_PIN gups
>
>   include/linux/mm.h |   4 --
>   mm/gup.c           | 101 ++++-----------------------------------------
>   mm/mempolicy.c     |  21 ++++------
>   mm/migrate.c       |   7 ++++
>   4 files changed, 24 insertions(+), 109 deletions(-)
>
>
> base-commit: dfd42facf1e4ada021b939b4e19c935dcdd55566