linux/fs/hpfs/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 HPFS_FS
tristate "OS/2 HPFS file system support"
depends on BLOCK
select BUFFER_HEAD
select FS_IOMAP
help
OS/2 is IBM's operating system for PC's, the same as Warp, and HPFS
is the file system used for organizing files on OS/2 hard disk
partitions. Say Y if you want to be able to read files from and
write files to an OS/2 HPFS partition on your hard drive. OS/2
floppies however are in regular MSDOS format, so you don't need this
option in order to be able to read them. Read
<file:Documentation/filesystems/hpfs.rst>.
To compile this file system support as a module, choose M here: the
module will be called hpfs. If unsure, say N.