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Date:   Mon, 16 Oct 2023 21:10:47 +0100
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-fsdevel@...r.kernel.org, gfs2@...ts.linux.dev,
        linux-nilfs@...r.kernel.org, linux-ntfs-dev@...ts.sourceforge.net,
        ntfs3@...ts.linux.dev, ocfs2-devel@...ts.linux.dev,
        reiserfs-devel@...r.kernel.org, linux-ext4@...r.kernel.org,
        Pankaj Raghav <p.raghav@...sung.com>
Subject: [PATCH v2 00/27] Finish the create_empty_buffers() transition

Pankaj recently added folio_create_empty_buffers() as the folio
equivalent to create_empty_buffers().  This patch set finishes
the conversion by first converting all remaining filesystems
to call folio_create_empty_buffers(), then renaming it back
to create_empty_buffers().  I took the opportunity to make a few
simplifications like making folio_create_empty_buffers() return the head
buffer and extracting get_nth_bh() from nilfs2.

A few of the patches in this series aren't directly related to
create_empty_buffers(), but I saw them while I was working on this and
thought they'd be easy enough to add to this series.  Compile-tested only,
other than ext4.

v2:
 - Added the patch to fix the return type from grow_dev_page()
 - Fixed typo in subject line noticed by Andreas
 - Fixed missed assignment to 'bh' spotted by Andreas
 - Exported folio_copy() spotted by Ryusuke
 - Added various Reviewed-by tags from Pankaj, Ryusuke & Andreas

Matthew Wilcox (Oracle) (27):
  buffer: Return bool from grow_dev_folio()
  buffer: Make folio_create_empty_buffers() return a buffer_head
  mpage: Convert map_buffer_to_folio() to folio_create_empty_buffers()
  ext4: Convert to folio_create_empty_buffers
  buffer: Add get_nth_bh()
  gfs2: Convert inode unstuffing to use a folio
  gfs2: Convert gfs2_getbuf() to folios
  gfs2: Convert gfs2_getjdatabuf to use a folio
  gfs2: Convert gfs2_write_buf_to_page() to use a folio
  nilfs2: Convert nilfs_mdt_freeze_buffer to use a folio
  nilfs2: Convert nilfs_grab_buffer() to use a folio
  nilfs2: Convert nilfs_copy_page() to nilfs_copy_folio()
  nilfs2: Convert nilfs_mdt_forget_block() to use a folio
  nilfs2: Convert nilfs_mdt_get_frozen_buffer to use a folio
  nilfs2: Remove nilfs_page_get_nth_block
  nilfs2: Convert nilfs_lookup_dirty_data_buffers to use
    folio_create_empty_buffers
  ntfs: Convert ntfs_read_block() to use a folio
  ntfs: Convert ntfs_writepage to use a folio
  ntfs: Convert ntfs_prepare_pages_for_non_resident_write() to folios
  ntfs3: Convert ntfs_zero_range() to use a folio
  ocfs2: Convert ocfs2_map_page_blocks to use a folio
  reiserfs: Convert writepage to use a folio
  ufs: Add ufs_get_locked_folio and ufs_put_locked_folio
  ufs: Use ufs_get_locked_folio() in ufs_alloc_lastblock()
  ufs; Convert ufs_change_blocknr() to use folios
  ufs: Remove ufs_get_locked_page()
  buffer: Remove folio_create_empty_buffers()

 fs/buffer.c                 |  68 +++++-----
 fs/ext4/inode.c             |  14 +-
 fs/ext4/move_extent.c       |  11 +-
 fs/gfs2/aops.c              |   2 +-
 fs/gfs2/bmap.c              |  48 ++++---
 fs/gfs2/meta_io.c           |  61 ++++-----
 fs/gfs2/quota.c             |  37 +++---
 fs/mpage.c                  |   3 +-
 fs/nilfs2/mdt.c             |  66 +++++-----
 fs/nilfs2/page.c            |  76 +++++------
 fs/nilfs2/page.h            |  11 --
 fs/nilfs2/segment.c         |   7 +-
 fs/ntfs/aops.c              | 255 +++++++++++++++++-------------------
 fs/ntfs/file.c              |  89 ++++++-------
 fs/ntfs3/file.c             |  31 ++---
 fs/ocfs2/aops.c             |  19 +--
 fs/reiserfs/inode.c         |  80 +++++------
 fs/ufs/balloc.c             |  20 ++-
 fs/ufs/inode.c              |  25 ++--
 fs/ufs/util.c               |  34 +++--
 fs/ufs/util.h               |  10 +-
 include/linux/buffer_head.h |  28 +++-
 mm/util.c                   |   1 +
 23 files changed, 481 insertions(+), 515 deletions(-)

-- 
2.40.1

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