bitops: remove minix bitops from asm/bitops.h
authorAkinobu Mita <akinobu.mita@gmail.com>
Wed, 23 Mar 2011 23:42:16 +0000 (16:42 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 24 Mar 2011 02:46:22 +0000 (19:46 -0700)
commit61f2e7b0f474225b4226772830ae4b29a3a21f8d
tree52f880fe6feec8efe5e5e028a3e0637629a500b7
parent3fca5af7860f87eb2cd706c2d7dda4ad03230a07
bitops: remove minix bitops from asm/bitops.h

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>
27 files changed:
arch/alpha/include/asm/bitops.h
arch/arm/include/asm/bitops.h
arch/avr32/include/asm/bitops.h
arch/blackfin/include/asm/bitops.h
arch/cris/include/asm/bitops.h
arch/frv/include/asm/bitops.h
arch/h8300/include/asm/bitops.h
arch/ia64/include/asm/bitops.h
arch/m32r/include/asm/bitops.h
arch/m68k/include/asm/bitops_mm.h
arch/m68k/include/asm/bitops_no.h
arch/mips/include/asm/bitops.h
arch/mn10300/include/asm/bitops.h
arch/parisc/include/asm/bitops.h
arch/powerpc/include/asm/bitops.h
arch/s390/include/asm/bitops.h
arch/sh/include/asm/bitops.h
arch/sparc/include/asm/bitops_32.h
arch/sparc/include/asm/bitops_64.h
arch/tile/include/asm/bitops.h
arch/x86/include/asm/bitops.h
arch/xtensa/include/asm/bitops.h
fs/minix/Kconfig
fs/minix/minix.h
include/asm-generic/bitops.h
include/asm-generic/bitops/minix-le.h [deleted file]
include/asm-generic/bitops/minix.h [deleted file]