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From:   Peng Zhang <zhangpeng362@huawei.com>
To:     <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
        <willy@infradead.org>
CC:     <hch@infradead.org>, <sidhartha.kumar@oracle.com>,
        <akpm@linux-foundation.org>, <wangkefeng.wang@huawei.com>,
        <sunnanyong@huawei.com>, ZhangPeng <zhangpeng362@huawei.com>
Subject: [PATCH v4 00/10] Convert several functions in page_io.c to use a folio
Date:   Fri, 21 Jul 2023 11:44:41 +0800
Message-ID: <20230721034451.16412-1-zhangpeng362@huawei.com>
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From: ZhangPeng <zhangpeng362@huawei.com>

This patch series converts several functions in page_io.c to use a
folio, which can remove several implicit calls to compound_head().

Changelog:

v4:
- add THP ifdefs per kernel test robot (patch 9)

v3:
- introduce bio_first_folio_all(), rather than replacing
  bio_first_page_all() per Matthew (patch 3)
- use a folio in __end_swap_bio_write() (patch 4)
- remove unneeded ifdefs per Matthew (patch 9)

v2:
- remove unneeded ClearPageUptodate() and SetPageError(), suggested by
  Matthew Wilcox
- convert bio_first_page_all() to bio_first_folio_all(), suggested by
  Matthew Wilcox
- convert PageTransHuge to folio_test_pmd_mappable per Matthew Wilcox

ZhangPeng (10):
  mm/page_io: remove unneeded ClearPageUptodate()
  mm/page_io: remove unneeded SetPageError()
  mm/page_io: introduce bio_first_folio_all()
  mm/page_io: use a folio in __end_swap_bio_write()
  mm/page_io: use a folio in __end_swap_bio_read()
  mm/page_io: use a folio in sio_read_complete()
  mm/page_io: use a folio in swap_writepage_bdev_sync()
  mm/page_io: use a folio in swap_writepage_bdev_async()
  mm/page_io: convert count_swpout_vm_event() to take in a folio
  mm/page_io: convert bio_associate_blkg_from_page() to take in a folio

 Documentation/block/biovecs.rst |  1 +
 include/linux/bio.h             |  5 +++
 mm/page_io.c                    | 61 ++++++++++++++++-----------------
 3 files changed, 35 insertions(+), 32 deletions(-)

-- 
2.25.1