[PATCH 00/14] f2fs: support & optimize large folios for writable files

[Nanzhe Zhao]

This series supports large folios for most readable/writable files
in buffered I/O paths, including normal files, block-layer encrypted
files, and atomic files except for inline-data files, compressed files,
and quota files. 

It also extends f2fs_folio_state to coexist with f2fs page-private
flags and to handle large folio write path and partial truncate of 
large folios correctly.

Benchmark details can be found in the v2 cover letter [1].

[1] https://lore.kernel.org/linux-f2fs-devel/20260622160830.324455-1-zhaonanzhe@xxxxxxxxxx/

Nanzhe Zhao (14):
  f2fs: extend folio state for large folio write path
  f2fs: carry subpage offset and count in write IO
  f2fs: support regular file buffered writes on large folios
  f2fs: support atomic file large folios buffered write
  f2fs: support large folio writeback
  f2fs: prepare mmap write faults for large folios
  f2fs: make GC migration large-folio aware
  f2fs: optimize small block size large folio read
  f2fs: support partial uptodate large folio read
  f2fs: handle partial truncate of large folio dirty subpages
  f2fs: fix zeroing paths for large folios
  f2fs: handle block cloning within the same large folio
  f2fs: allow large folio support to writeable files
  f2fs: make compressed files compatible with large folio

 fs/f2fs/compress.c |    2 +
 fs/f2fs/data.c     | 1270 +++++++++++++++++++++++++++++++++++++++++++++++-----
 fs/f2fs/f2fs.h     |  123 ++++-
 fs/f2fs/file.c     |  191 +++++---
 fs/f2fs/gc.c       |   30 +-
 fs/f2fs/inode.c    |    4 +-
 fs/f2fs/namei.c    |    1 +
 fs/f2fs/segment.c  |    5 +-
 8 files changed, 1431 insertions(+), 195 deletions(-)

-- 
2.43.0