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v6.6.99
linux-yocto/fs/efs/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 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.