exfat: add exfat_file_open()

Add exfat_file_open() to handle file open operation for exFAT.
This change is a preparation step before introducing iomap-based direct
IO support.

Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
This commit is contained in:
Namjae Jeon 2026-05-08 14:33:35 +09:00
commit a095c12ef1