[PATCH 0/2] iomap/ntfs: remove over-strict inline data check and optimize ntfs

[Namjae Jeon <linkinjeon@kernel.org>]

This patch series aims to remove an unnecessarily strict boundary
check for IOMAP_INLINE data and, as a result, optimize the NTFS
driver's handling of resident attributes. The first patch removes
iomap_inline_data_valid() and its callers in the iomap core.
Currently, this check prevents inline_data from crossing a PAGE_SIZE
boundary. If the filesystem provides a valid mapping, iomap should trust
it regardless of page boundaries.

The second patch updates the NTFS driver to take advantage of this
change. Previously, NTFS performed redundant page allocations and
memcpy operations to ensure page-aligned inline data. By removing
these steps, we simplify the NTFS iomap implementation and improve
performance for resident file I/O.

Namjae Jeon (2):
  iomap: remove over-strict inline data boundary check
  ntfs: use direct pointer for inline data to avoid redundant allocation

 fs/iomap/buffered-io.c |  1 -
 fs/iomap/direct-io.c   |  3 --
 fs/ntfs/iomap.c        | 76 ++++--------------------------------------
 include/linux/iomap.h  | 10 ------
 4 files changed, 6 insertions(+), 84 deletions(-)

-- 
2.25.1