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Message-ID: <20250430181052.55698-1-ryncsn@gmail.com>
Date: Thu, 1 May 2025 02:10:46 +0800
From: Kairui Song <ryncsn@...il.com>
To: linux-mm@...ck.org
Cc: Andrew Morton <akpm@...ux-foundation.org>,
Matthew Wilcox <willy@...radead.org>,
Hugh Dickins <hughd@...gle.com>,
Chris Li <chrisl@...nel.org>,
David Hildenbrand <david@...hat.com>,
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,
Kairui Song <kasong@...cent.com>
Subject: [PATCH v3 0/6] mm, swap: clean up swap cache mapping helper
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, and prepare for further changes.
---
V1: https://lore.kernel.org/linux-mm/20250427185908.90450-1-ryncsn@gmail.com/
Changes:
- Collect Reviewed-by.
- Fix a build bot error.
- Slightly update commit messages to cover a few review concerns.
V2: https://lore.kernel.org/linux-mm/20250429114949.41124-1-ryncsn@gmail.com/
Changes:
- Collect Acked-by.
- VM_BUG_ON to VM_WARN_ON and minor code style update.
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/gup.c | 1 +
mm/memfd.c | 1 +
mm/migrate.c | 1 +
mm/page-writeback.c | 1 +
mm/swap.h | 18 ++++++++++++++++++
mm/swapfile.c | 15 ---------------
12 files changed, 34 insertions(+), 48 deletions(-)
--
2.49.0
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