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bitops: remove minix bitops from asm/bitops.h

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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>
This commit is contained in:
Akinobu Mita
2011-03-23 16:42:16 -07:00
committed by Linus Torvalds
parent 3fca5af786
commit 61f2e7b0f4
27 changed files with 82 additions and 110 deletions
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15
include/asm-generic/bitops/minix-le.h
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@ -1,15 +0,0 @@
#ifndef _ASM_GENERIC_BITOPS_MINIX_LE_H_
#define _ASM_GENERIC_BITOPS_MINIX_LE_H_
#define minix_test_and_set_bit(nr,addr) \
__test_and_set_bit_le((nr), (unsigned long *)(addr))
#define minix_set_bit(nr,addr) \
__set_bit_le((nr), (unsigned long *)(addr))
#define minix_test_and_clear_bit(nr,addr) \
__test_and_clear_bit_le((nr), (unsigned long *)(addr))
#define minix_test_bit(nr,addr) \
test_bit_le((nr), (unsigned long *)(addr))
#define minix_find_first_zero_bit(addr,size) \
find_first_zero_bit_le((unsigned long *)(addr), (size))
#endif /* _ASM_GENERIC_BITOPS_MINIX_LE_H_ */

15
include/asm-generic/bitops/minix.h
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@ -1,15 +0,0 @@
#ifndef _ASM_GENERIC_BITOPS_MINIX_H_
#define _ASM_GENERIC_BITOPS_MINIX_H_
#define minix_test_and_set_bit(nr,addr) \
__test_and_set_bit((nr),(unsigned long *)(addr))
#define minix_set_bit(nr,addr) \
__set_bit((nr),(unsigned long *)(addr))
#define minix_test_and_clear_bit(nr,addr) \
__test_and_clear_bit((nr),(unsigned long *)(addr))
#define minix_test_bit(nr,addr) \
test_bit((nr),(unsigned long *)(addr))
#define minix_find_first_zero_bit(addr,size) \
find_first_zero_bit((unsigned long *)(addr),(size))
#endif /* _ASM_GENERIC_BITOPS_MINIX_H_ */