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>
22 lines
964 B
Plaintext
22 lines
964 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
config BFS_FS
|
|
tristate "BFS file system support"
|
|
depends on BLOCK
|
|
select BUFFER_HEAD
|
|
help
|
|
Boot File System (BFS) is a file system used under SCO UnixWare to
|
|
allow the bootloader access to the kernel image and other important
|
|
files during the boot process. It is usually mounted under /stand
|
|
and corresponds to the slice marked as "STAND" in the UnixWare
|
|
partition. You should say Y if you want to read or write the files
|
|
on your /stand slice from within Linux. You then also need to say Y
|
|
to "UnixWare slices support", below. More information about the BFS
|
|
file system is contained in the file
|
|
<file:Documentation/filesystems/bfs.rst>.
|
|
|
|
If you don't know what this is about, say N.
|
|
|
|
To compile this as a module, choose M here: the module will be called
|
|
bfs. Note that the file system of your root partition (the one
|
|
containing the directory /) cannot be compiled as a module.
|