linux-toradex.git/fs/exfat/Kconfig, branch master Linux kernel for Apalis and Colibri modules exfat: add iomap direct I/O support 2026-06-15T11:00:40+00:00 Namjae Jeon linkinjeon@kernel.org 2026-05-23T04:56:43+00:00 867b9c96dc837e09ef125a79dc151fa2fc7a5d32 Add iomap-based direct I/O support to the exfat filesystem. This replaces the previous exfat_direct_IO() implementation that used blockdev_direct_IO() with iomap_dio_rw() interface. Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> 
Add iomap-based direct I/O support to the exfat filesystem. This replaces
the previous exfat_direct_IO() implementation that used
blockdev_direct_IO() with iomap_dio_rw() interface.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
exfat: add iomap buffered I/O support 2026-06-15T11:00:23+00:00 Namjae Jeon linkinjeon@kernel.org 2026-06-15T10:59:58+00:00 82a81a7352bcf5f2756ac33d47ee0582737e9a85 Add full buffered I/O support using the iomap framework to the exfat filesystem. This will replaces the old exfat_get_block(), exfat_write_begin(), exfat_write_end(), and exfat_block_truncate_page() with their iomap equivalents. Buffered writes now use iomap_file_buffered_write(), read uses iomap_bio_read_folio() and iomap_bio_readahead(), and writeback is handled through iomap_writepages(). Acked-by: Christoph Hellwig <hch@lst.de> Acked-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Namjae Jeon <linkinjeon@kernel.org> 
Add full buffered I/O support using the iomap framework to the exfat
filesystem. This will replaces the old exfat_get_block(),
exfat_write_begin(), exfat_write_end(), and exfat_block_truncate_page()
with their iomap equivalents. Buffered writes now use
iomap_file_buffered_write(), read uses iomap_bio_read_folio() and
iomap_bio_readahead(), and writeback is handled through iomap_writepages().

Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
fs: add CONFIG_BUFFER_HEAD 2023-08-02T15:13:09+00:00 Christoph Hellwig hch@lst.de 2023-08-01T17:22:01+00:00 925c86a19bacf8ce10eb666328fb3fa5aff7b951 Add a new config option that controls building the buffer_head code, and select it from all file systems and stacking drivers that need it. For the block device nodes and alternative iomap based buffered I/O path is provided when buffer_head support is not enabled, and iomap needs a a small tweak to define the IOMAP_F_BUFFER_HEAD flag to 0 to not call into the buffer_head code when it doesn't exist. Otherwise this is just Kconfig and ifdef changes. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Link: https://lore.kernel.org/r/20230801172201.1923299-7-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> 
Add a new config option that controls building the buffer_head code, and
select it from all file systems and stacking drivers that need it.

For the block device nodes and alternative iomap based buffered I/O path
is provided when buffer_head support is not enabled, and iomap needs a
a small tweak to define the IOMAP_F_BUFFER_HEAD flag to 0 to not call
into the buffer_head code when it doesn't exist.

Otherwise this is just Kconfig and ifdef changes.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230801172201.1923299-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs: build the legacy direct I/O code conditionally 2023-01-26T17:30:56+00:00 Christoph Hellwig hch@lst.de 2023-01-25T06:58:39+00:00 9636e650e16f6b01f0044f7662074958c23e4707 Add a new LEGACY_DIRECT_IO config symbol that is only selected by the file systems that still use the legacy blockdev_direct_IO code, so that kernels without support for those file systems don't need to build the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Reviewed-by: Eric Biggers <ebiggers@google.com> Link: https://lore.kernel.org/r/20230125065839.191256-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> 
Add a new LEGACY_DIRECT_IO config symbol that is only selected by the
file systems that still use the legacy blockdev_direct_IO code, so that
kernels without support for those file systems don't need to build the
code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20230125065839.191256-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
exfat: Improve wording of EXFAT_DEFAULT_IOCHARSET config option 2020-06-09T07:48:39+00:00 Geert Uytterhoeven geert@linux-m68k.org 2020-04-06T09:13:43+00:00 31f5acc0aaa319a34308442413ef0b878e9d2c93 - Use consistent capitalization for "exFAT". - Fix grammar, - Split long sentence. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> 
  - Use consistent capitalization for "exFAT".
  - Fix grammar,
  - Split long sentence.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
exfat: add Kconfig and Makefile 2020-03-06T02:00:40+00:00 Namjae Jeon namjae.jeon@samsung.com 2020-03-02T06:21:42+00:00 b9d1e2e6265f5dc25e9f5dbfbde3e53d8a4958ac This adds the Kconfig and Makefile for exfat. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
This adds the Kconfig and Makefile for exfat.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Sungjong Seo <sj1557.seo@samsung.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>