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925c86a19b
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>
1.1 KiB
1.1 KiB
SPDX-License-Identifier: GPL-2.0-only
config ADFS_FS tristate "ADFS file system support" depends on BLOCK select BUFFER_HEAD help The Acorn Disc Filing System is the standard file system of the RiscOS operating system which runs on Acorn's ARM-based Risc PC systems and the Acorn Archimedes range of machines. If you say Y here, Linux will be able to read from ADFS partitions on hard drives and from ADFS-formatted floppy discs. If you also want to be able to write to those devices, say Y to "ADFS write support" below.
The ADFS partition should be the first partition (i.e.,
/dev/[hs]d?1) on each of your drives. Please read the file
<file:Documentation/filesystems/adfs.rst> for further details.
To compile this code as a module, choose M here: the module will be
called adfs.
If unsure, say N.
config ADFS_FS_RW bool "ADFS write support (DANGEROUS)" depends on ADFS_FS help If you say Y here, you will be able to write to ADFS partitions on hard drives and ADFS-formatted floppy disks. This is experimental codes, so if you're unsure, say N.