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linux-yocto/fs/bfs/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 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.