linux-stable/fs/exfat/Kconfig
Christoph Hellwig 925c86a19b fs: add CONFIG_BUFFER_HEAD
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>
2023-08-02 09:13:09 -06:00

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# SPDX-License-Identifier: GPL-2.0-or-later
config EXFAT_FS
tristate "exFAT filesystem support"
select BUFFER_HEAD
select NLS
select LEGACY_DIRECT_IO
help
This allows you to mount devices formatted with the exFAT file system.
exFAT is typically used on SD-Cards or USB sticks.
To compile this as a module, choose M here: the module will be called
exfat.
config EXFAT_DEFAULT_IOCHARSET
string "Default iocharset for exFAT"
default "utf8"
depends on EXFAT_FS
help
Set this to the default input/output character set to use for
converting between the encoding that is used for user visible
filenames and the UTF-16 character encoding that the exFAT
filesystem uses. This can be overridden with the "iocharset" mount
option for the exFAT filesystems.