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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2011-03-24 02:42:16 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-24 05:46:22 +0300 |
| commit | 61f2e7b0f474225b4226772830ae4b29a3a21f8d (patch) | |
| tree | 52f880fe6feec8efe5e5e028a3e0637629a500b7 /arch/arm | |
| parent | 3fca5af7860f87eb2cd706c2d7dda4ad03230a07 (diff) | |
| download | linux-61f2e7b0f474225b4226772830ae4b29a3a21f8d.tar.xz | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/bitops.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index f68f1fb6b38e..6b7403fd8f54 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -345,16 +345,6 @@ static inline int find_next_bit_le(const void *p, int size, int offset) #define ext2_clear_bit_atomic(lock, nr, p) \ test_and_clear_bit_le(nr, p) -/* - * Minix is defined to use little-endian byte ordering. - * These do not need to be atomic. - */ -#define minix_set_bit __set_bit_le -#define minix_test_bit test_bit_le -#define minix_test_and_set_bit __test_and_set_bit_le -#define minix_test_and_clear_bit __test_and_clear_bit_le -#define minix_find_first_zero_bit find_first_zero_bit_le - #endif /* __KERNEL__ */ #endif /* _ARM_BITOPS_H */ |