linux-kernel - Re: [PATCH 0/6] mm, swap: clean up swap cache mapping helper

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Message-ID: <CAMgjq7Av8weoyhnk0-u6HZFdJn29bUzkJ60X9=sz5qrWGPNp1A@mail.gmail.com>
Date: Mon, 28 Apr 2025 03:02:03 +0800
From: Kairui Song <ryncsn@...il.com>
To: linux-mm@...ck.org
Cc: Andrew Morton <akpm@...ux-foundation.org>, Matthew Wilcox <willy@...radead.org>, 
	David Hildenbrand <david@...hat.com>, Hugh Dickins <hughd@...gle.com>, Chris Li <chrisl@...nel.org>, 
	Yosry Ahmed <yosryahmed@...gle.com>, "Huang, Ying" <ying.huang@...ux.alibaba.com>, 
	Nhat Pham <nphamcs@...il.com>, Johannes Weiner <hannes@...xchg.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/6] mm, swap: clean up swap cache mapping helper

On Mon, Apr 28, 2025 at 3:00 AM Kairui Song <ryncsn@...il.com> wrote:
>
> From: Kairui Song <kasong@...cent.com>
>
> This series removes usage of folio_index usage in fs/, and remove swap
> cache checking in folio_contains.
>
> Currently, the swap cache is already no longer directly exposed to fs,
> and swap cache will be more different from page cache. Clean up the
> helpers first to simplify the code and eliminate the helpers used for
> resolving circular header dependency issue between filemap and swap
> headers.
>
> Kairui Song (6):
>   fuse: drop usage of folio_index
>   btrfs: drop usage of folio_index
>   f2fs: drop usage of folio_index
>   filemap: do not use folio_contains for swap cache folios
>   mm: move folio_index to mm/swap.h and remove no longer needed helper
>   mm, swap: remove no longer used swap mapping helper
>
>  fs/btrfs/extent_io.c    |  2 +-
>  fs/f2fs/data.c          |  4 ++--
>  fs/f2fs/inline.c        |  4 ++--
>  fs/f2fs/super.c         |  2 +-
>  fs/fuse/file.c          |  4 ++--
>  include/linux/pagemap.h | 29 ++++-------------------------
>  mm/memfd.c              |  1 +
>  mm/migrate.c            |  1 +
>  mm/swap.h               | 18 ++++++++++++++++++
>  mm/swapfile.c           | 15 ---------------
>  10 files changed, 32 insertions(+), 48 deletions(-)
>
> --
> 2.49.0
>

I just realized I added duplicated Sign-off-by in a few commits, sorry about it.