Message-Id: <20221102161031.5820-1-vishal.moola@gmail.com>
Date:   Wed,  2 Nov 2022 09:10:08 -0700
From:   "Vishal Moola (Oracle)" <vishal.moola@...il.com>
To:     linux-fsdevel@...r.kernel.org
Cc:     linux-afs@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-btrfs@...r.kernel.org, ceph-devel@...r.kernel.org,
        linux-cifs@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net, cluster-devel@...hat.com,
        linux-nilfs@...r.kernel.org, linux-mm@...ck.org,
        "Vishal Moola (Oracle)" <vishal.moola@...il.com>
Subject: [PATCH v4 00/23] Convert to filemap_get_folios_tag()

This patch series replaces find_get_pages_range_tag() with
filemap_get_folios_tag(). This also allows the removal of multiple
calls to compound_head() throughout.
It also makes a good chunk of the straightforward conversions to folios,
and takes the opportunity to introduce a function that grabs a folio
from the pagecache.

F2fs and Ceph have quite a lot of work to be done regarding folios, so
for now those patches only have the changes necessary for the removal of
find_get_pages_range_tag(), and only support folios of size 1 (which is
all they use right now anyways).

I've run xfstests on btrfs, ext4, f2fs, and nilfs2, but more testing may be
beneficial. The page-writeback and filemap changes implicitly work. Testing
and review of the other changes (afs, ceph, cifs, gfs2) would be appreciated.

---
v4:
  Fixed a bug with reference counting in cifs changes
  - Reported-by: kernel test robot <oliver.sang@...el.com> 
  Improved commit messages to be more meaningful
  Got some Acked-bys and Reviewed-bys

v3:
  Rebased onto upstream 6.1
  Simplified the ceph patch to only necessary changes
  Changed commit messages throughout to be clearer
  Got an Acked-by for another nilfs patch
  Got Tested-by for afs

v2:
  Got Acked-By tags for nilfs and btrfs changes
  Fixed an error arising in f2fs
  - Reported-by: kernel test robot <lkp@...el.com>

Vishal Moola (Oracle) (23):
  pagemap: Add filemap_grab_folio()
  filemap: Added filemap_get_folios_tag()
  filemap: Convert __filemap_fdatawait_range() to use
    filemap_get_folios_tag()
  page-writeback: Convert write_cache_pages() to use
    filemap_get_folios_tag()
  afs: Convert afs_writepages_region() to use filemap_get_folios_tag()
  btrfs: Convert btree_write_cache_pages() to use
    filemap_get_folio_tag()
  btrfs: Convert extent_write_cache_pages() to use
    filemap_get_folios_tag()
  ceph: Convert ceph_writepages_start() to use filemap_get_folios_tag()
  cifs: Convert wdata_alloc_and_fillpages() to use
    filemap_get_folios_tag()
  ext4: Convert mpage_prepare_extent_to_map() to use
    filemap_get_folios_tag()
  f2fs: Convert f2fs_fsync_node_pages() to use filemap_get_folios_tag()
  f2fs: Convert f2fs_flush_inline_data() to use filemap_get_folios_tag()
  f2fs: Convert f2fs_sync_node_pages() to use filemap_get_folios_tag()
  f2fs: Convert f2fs_write_cache_pages() to use filemap_get_folios_tag()
  f2fs: Convert last_fsync_dnode() to use filemap_get_folios_tag()
  f2fs: Convert f2fs_sync_meta_pages() to use filemap_get_folios_tag()
  gfs2: Convert gfs2_write_cache_jdata() to use filemap_get_folios_tag()
  nilfs2: Convert nilfs_lookup_dirty_data_buffers() to use
    filemap_get_folios_tag()
  nilfs2: Convert nilfs_lookup_dirty_node_buffers() to use
    filemap_get_folios_tag()
  nilfs2: Convert nilfs_btree_lookup_dirty_buffers() to use
    filemap_get_folios_tag()
  nilfs2: Convert nilfs_copy_dirty_pages() to use
    filemap_get_folios_tag()
  nilfs2: Convert nilfs_clear_dirty_pages() to use
    filemap_get_folios_tag()
  filemap: Remove find_get_pages_range_tag()

 fs/afs/write.c          | 114 +++++++++++++++++++++-------------------
 fs/btrfs/extent_io.c    |  57 ++++++++++----------
 fs/ceph/addr.c          |  58 ++++++++++----------
 fs/cifs/file.c          |  32 +++++++++--
 fs/ext4/inode.c         |  55 ++++++++++---------
 fs/f2fs/checkpoint.c    |  49 +++++++++--------
 fs/f2fs/compress.c      |  13 ++---
 fs/f2fs/data.c          |  69 +++++++++++++-----------
 fs/f2fs/f2fs.h          |   5 +-
 fs/f2fs/node.c          |  72 +++++++++++++------------
 fs/gfs2/aops.c          |  64 ++++++++++++----------
 fs/nilfs2/btree.c       |  14 ++---
 fs/nilfs2/page.c        |  59 +++++++++++----------
 fs/nilfs2/segment.c     |  44 ++++++++--------
 include/linux/pagemap.h |  32 +++++++----
 include/linux/pagevec.h |   8 ---
 mm/filemap.c            |  84 ++++++++++++++---------------
 mm/page-writeback.c     |  44 ++++++++--------
 mm/swap.c               |  10 ----
 19 files changed, 465 insertions(+), 418 deletions(-)

-- 
2.38.1

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