mirror of
https://github.com/torvalds/linux.git
synced 2025-10-31 08:38:45 +02:00
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>
16 lines
659 B
Text
16 lines
659 B
Text
# SPDX-License-Identifier: GPL-2.0-only
|
|
config EFS_FS
|
|
tristate "EFS file system support (read only)"
|
|
depends on BLOCK
|
|
select BUFFER_HEAD
|
|
help
|
|
EFS is an older file system used for non-ISO9660 CD-ROMs and hard
|
|
disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer
|
|
uses the XFS file system for hard disk partitions however).
|
|
|
|
This implementation only offers read-only access. If you don't know
|
|
what all this is about, it's safe to say N. For more information
|
|
about EFS see its home page at <http://aeschi.ch.eu.org/efs/>.
|
|
|
|
To compile the EFS file system support as a module, choose M here: the
|
|
module will be called efs.
|