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[v4,00/10] fuse: support large folios

Message ID 20250123012448.2479372-1-joannelkoong@gmail.com (mailing list archive)
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Series fuse: support large folios | expand

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Joanne Koong Jan. 23, 2025, 1:24 a.m. UTC 
This patchset adds support for folios larger than one page size in FUSE.
This does not yet enable large folios, as that requires one last piece, which
is for writeback to support large folios. Large folios for writeback will be
done separately in a future patchset. Please see this [1] for more details, as
well as benchmarks we can expect from enabling large folios.

[1] https://lore.kernel.org/linux-fsdevel/CAJnrk1a8fP7JQRWNhq7uvM=k=RbKrW+V9bOj1CQo=v4ZoNGQ3w@mail.gmail.com/ 

Changelog:
v3:
https://lore.kernel.org/linux-fsdevel/20241213221818.322371-1-joannelkoong@gmail.com/
v3 -> v4:
* Add Jeff's reviewed-bys
* Drop writeback large folios changes, drop turning large folios on. These
  will be part of a separate future patchset

v2:
https://lore.kernel.org/linux-fsdevel/20241125220537.3663725-1-joannelkoong@gmail.com/
v2 -> v3:
* Fix direct io parsing to check each extracted page instead of assuming all
  pages in a large folio will be used (Matthew)

v1:
https://lore.kernel.org/linux-fsdevel/20241109001258.2216604-1-joannelkoong@gmail.com/
v1 -> v2:
* Change naming from "non-writeback write" to "writethrough write"
* Fix deadlock for writethrough writes by calling fault_in_iov_iter_readable()
* first
  before __filemap_get_folio() (Josef)
* For readahead, retain original folio_size() for descs.length (Josef)
* Use folio_zero_range() api in fuse_copy_folio() (Josef)
* Add Josef's reviewed-bys

Joanne Koong (10):
  fuse: support copying large folios
  fuse: support large folios for retrieves
  fuse: refactor fuse_fill_write_pages()
  fuse: support large folios for writethrough writes
  fuse: support large folios for folio reads
  fuse: support large folios for symlinks
  fuse: support large folios for stores
  fuse: support large folios for queued writes
  fuse: support large folios for readahead
  fuse: optimize direct io large folios processing

 fs/fuse/dev.c        | 126 +++++++++++++++++++++--------------------
 fs/fuse/dir.c        |   8 +--
 fs/fuse/file.c       | 130 +++++++++++++++++++++++++++++--------------
 fs/fuse/fuse_dev_i.h |   2 +-
 4 files changed, 156 insertions(+), 110 deletions(-)