forked from luck/tmp_suning_uos_patched
61f2e7b0f4
minix bit operations are only used by minix filesystem and useless by other modules. Because byte order of inode and block bitmaps is different on each architecture like below: m68k: big-endian 16bit indexed bitmaps h8300, microblaze, s390, sparc, m68knommu: big-endian 32 or 64bit indexed bitmaps m32r, mips, sh, xtensa: big-endian 32 or 64bit indexed bitmaps for big-endian mode little-endian bitmaps for little-endian mode Others: little-endian bitmaps In order to move minix bit operations from asm/bitops.h to architecture independent code in minix filesystem, this provides two config options. CONFIG_MINIX_FS_BIG_ENDIAN_16BIT_INDEXED is only selected by m68k. CONFIG_MINIX_FS_NATIVE_ENDIAN is selected by the architectures which use native byte order bitmaps (h8300, microblaze, s390, sparc, m68knommu, m32r, mips, sh, xtensa). The architectures which always use little-endian bitmaps do not select these options. Finally, we can remove minix bit operations from asm/bitops.h for all architectures. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Michal Simek <monstr@monstr.eu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Hirokazu Takata <takata@linux-m32r.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
26 lines
1.0 KiB
Plaintext
26 lines
1.0 KiB
Plaintext
config MINIX_FS
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tristate "Minix file system support"
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depends on BLOCK
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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 H8300 || M32R || 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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