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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>
28 lines
1.1 KiB
Plaintext
28 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config MINIX_FS
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tristate "Minix file system support"
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depends on BLOCK
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select BUFFER_HEAD
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help
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Minix is a simple operating system used in many classes about OS's.
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The minix file system (method to organize files on a hard disk
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partition or a floppy disk) was the original file system for Linux,
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but has been superseded by the second extended file system ext2fs.
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You don't want to use the minix file system on your hard disk
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because of certain built-in restrictions, but it is sometimes found
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on older Linux floppy disks. This option will enlarge your kernel
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by about 28 KB. If unsure, say N.
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To compile this file system support as a module, choose M here: the
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module will be called minix. Note that the file system of your root
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partition (the one containing the directory /) cannot be compiled as
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a module.
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config MINIX_FS_NATIVE_ENDIAN
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def_bool MINIX_FS
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depends on MICROBLAZE || MIPS || S390 || SUPERH || SPARC || XTENSA || (M68K && !MMU)
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config MINIX_FS_BIG_ENDIAN_16BIT_INDEXED
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def_bool MINIX_FS
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depends on M68K && MMU
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