The patch titled
arm: introduce little-endian bitops
has been added to the -mm tree. Its filename is
arm-introduce-little-endian-bitops.patch
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The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: arm: introduce little-endian bitops
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Introduce little-endian bit operations by renaming native ext2 bit
operations. The ext2 and minix bit operations are kept as wrapper macros
using little-endian bit operations to maintain bisectability until the
conversions are finished.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm/include/asm/bitops.h | 61 ++++++++++++++++++--------------
1 file changed, 35 insertions(+), 26 deletions(-)
diff -puN arch/arm/include/asm/bitops.h~arm-introduce-little-endian-bitops arch/arm/include/asm/bitops.h
--- a/arch/arm/include/asm/bitops.h~arm-introduce-little-endian-bitops
+++ a/arch/arm/include/asm/bitops.h
@@ -287,41 +287,50 @@ static inline int fls(int x)
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>
+#define __set_bit_le(nr, p) \
+ __set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define __clear_bit_le(nr, p) \
+ __clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define __test_and_set_bit_le(nr, p) \
+ __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define test_and_set_bit_le(nr, p) \
+ test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define __test_and_clear_bit_le(nr, p) \
+ __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define test_and_clear_bit_le(nr, p) \
+ test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define test_bit_le(nr, p) \
+ test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+#define find_first_zero_bit_le(p, sz) \
+ _find_first_zero_bit_le(p, sz)
+#define find_next_zero_bit_le(p, sz, off) \
+ _find_next_zero_bit_le(p, sz, off)
+#define find_next_bit_le(p, sz, off) \
+ _find_next_bit_le((unsigned long *)(p), sz, off)
/*
* Ext2 is defined to use little-endian byte ordering.
* These do not need to be atomic.
*/
-#define ext2_set_bit(nr,p) \
- __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_set_bit_atomic(lock,nr,p) \
- test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_clear_bit(nr,p) \
- __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_clear_bit_atomic(lock,nr,p) \
- test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define ext2_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
-#define ext2_find_next_zero_bit(p,sz,off) \
- _find_next_zero_bit_le(p,sz,off)
-#define ext2_find_next_bit(p, sz, off) \
- _find_next_bit_le(p, sz, off)
+#define ext2_set_bit __test_and_set_bit_le
+#define ext2_set_bit_atomic(lock, nr, p) \
+ test_and_set_bit_le(nr, p)
+#define ext2_clear_bit __test_and_clear_bit_le
+#define ext2_clear_bit_atomic(lock, nr, p) \
+ test_and_clear_bit_le(nr, p)
+#define ext2_test_bit test_bit_le
+#define ext2_find_first_zero_bit find_first_zero_bit_le
+#define ext2_find_next_zero_bit find_next_zero_bit_le
+#define ext2_find_next_bit find_next_bit_le
/*
* Minix is defined to use little-endian byte ordering.
* These do not need to be atomic.
*/
-#define minix_set_bit(nr,p) \
- __set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_and_set_bit(nr,p) \
- __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_test_and_clear_bit(nr,p) \
- __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
-#define minix_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+#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__ */
_
Patches currently in -mm which might be from akinobu.mita@xxxxxxxxx are
smp-move-smp-setup-functions-to-kernel-smpc.patch
kvm-stop-including-asm-generic-bitops-leh-directly.patch
rds-stop-including-asm-generic-bitops-leh-directly.patch
bitops-merge-little-and-big-endian-definisions-in-asm-generic-bitops-leh.patch
asm-generic-rename-generic-little-endian-bitops-functions.patch
asm-generic-change-little-endian-bitops-to-take-any-pointer-types.patch
powerpc-introduce-little-endian-bitops.patch
s390-introduce-little-endian-bitops.patch
arm-introduce-little-endian-bitops.patch
m68k-introduce-little-endian-bitops.patch
bitops-introduce-config_generic_find_bit_le.patch
m68knommu-introduce-little-endian-bitops.patch
bitops-introduce-little-endian-bitops-for-most-architectures.patch
asm-generic-use-little-endian-bitops.patch
kvm-use-little-endian-bitops.patch
rds-use-little-endian-bitops.patch
ext3-use-little-endian-bitops.patch
ext4-use-little-endian-bitops.patch
ocfs2-use-little-endian-bitops.patch
nilfs2-use-little-endian-bitops.patch
reiserfs-use-little-endian-bitops.patch
udf-use-little-endian-bitops.patch
ufs-use-little-endian-bitops.patch
md-use-little-endian-bitops.patch
dm-use-little-endian-bitops.patch
bitops-remove-ext2-non-atomic-bitops-from-asm-bitopsh.patch
m68k-remove-inline-asm-from-minix_find_first_zero_bit.patch
bitops-remove-minix-bitops-from-asm-bitopsh.patch
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