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 RFC v2 cover letter [1].
[1] https://lore.kernel.org/r/20260622160830.324455-1-zhaonanzhe@xiaomi.com
Changes in v2:
- Addressed most of Chao's and Daeho's review comments.
- Updated docs for compress policy with large folios.
- Link to v1: https://lore.kernel.org/r/20260826082641.2007658-1-zhaonanzhe@xiaomi.com
Many thanks to Chao and Daeho for your extensive reviews and valuable
suggestions!
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
Documentation/filesystems/f2fs.rst | 10 +
fs/f2fs/checkpoint.c | 2 +
fs/f2fs/compress.c | 3 +
fs/f2fs/data.c | 1221 +++++++++++++++++++++++++---
fs/f2fs/f2fs.h | 105 ++-
fs/f2fs/file.c | 229 ++++--
fs/f2fs/gc.c | 32 +-
fs/f2fs/inline.c | 7 +
fs/f2fs/inode.c | 4 +-
fs/f2fs/namei.c | 1 +
fs/f2fs/node.c | 2 +
fs/f2fs/segment.c | 6 +-
12 files changed, 1404 insertions(+), 218 deletions(-)
--
2.43.0