Merge patch series "iomap: make buffered writes work with RWF_DONTCACHE"

Support buffered writes with RWF_DONTCACHE.

* patches from https://lore.kernel.org/r/20250204184047.356762-2-axboe@kernel.dk:
  xfs: flag as supporting FOP_DONTCACHE
  iomap: make buffered writes work with RWF_DONTCACHE

Link: https://lore.kernel.org/r/20250204184047.356762-2-axboe@kernel.dk


Signed-off-by: Christian Brauner <brauner@kernel.org>