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linux-imx/fs/udf/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-only

config UDF_FS tristate "UDF file system support" select BUFFER_HEAD select CRC_ITU_T select NLS select LEGACY_DIRECT_IO help This is a file system used on some CD-ROMs and DVDs. Since the file system is supported by multiple operating systems and is more compatible with standard unix file systems, it is also suitable for removable USB disks. Say Y if you intend to mount DVD discs or CDRW's written in packet mode, or if you want to use UDF for removable USB disks. Please read file:Documentation/filesystems/udf.rst.

  To compile this file system support as a module, choose M here: the
  module will be called udf.

  If unsure, say N.