mirror of
https://github.com/torvalds/linux.git
synced 2024-11-22 20:22:09 +00:00
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>
25 lines
1.0 KiB
Plaintext
25 lines
1.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
config AFFS_FS
|
|
tristate "Amiga FFS file system support"
|
|
depends on BLOCK
|
|
select BUFFER_HEAD
|
|
select LEGACY_DIRECT_IO
|
|
help
|
|
The Fast File System (FFS) is the common file system used on hard
|
|
disks by Amiga(tm) systems since AmigaOS Version 1.3 (34.20). Say Y
|
|
if you want to be able to read and write files from and to an Amiga
|
|
FFS partition on your hard drive. Amiga floppies however cannot be
|
|
read with this driver due to an incompatibility of the floppy
|
|
controller used in an Amiga and the standard floppy controller in
|
|
PCs and workstations. Read <file:Documentation/filesystems/affs.rst>
|
|
and <file:fs/affs/Changes>.
|
|
|
|
With this driver you can also mount disk files used by Bernd
|
|
Schmidt's Un*X Amiga Emulator
|
|
(<http://www.freiburg.linux.de/~uae/>).
|
|
If you want to do this, you will also need to say Y or M to "Loop
|
|
device support", above.
|
|
|
|
To compile this file system support as a module, choose M here: the
|
|
module will be called affs. If unsure, say N.
|