From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
akpm@linux-foundation.org
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
Russell King <rmk+kernel@arm.linux.org.uk>
Subject: [PATCH v4 05/24] arm: introduce little-endian bitops
Date: Sun, 16 Jan 2011 22:08:34 +0900 [thread overview]
Message-ID: <1295183333-13802-6-git-send-email-akinobu.mita@gmail.com> (raw)
In-Reply-To: <1295183333-13802-1-git-send-email-akinobu.mita@gmail.com>
Introduce little-endian bit operations by renaming native ext2 bit
operations. The ext2 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@gmail.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
Change from v3:
- change to the post-fix notation e.g. s/test_le_bit/test_bit_le/
The whole series is available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mita/linux-2.6.git le-bitops-v4
arch/arm/include/asm/bitops.h | 46 +++++++++++++++++++++++++++++-----------
1 files changed, 33 insertions(+), 13 deletions(-)
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index 338ff19..37736f6 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -303,41 +303,61 @@ 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), (p))
+#define __clear_bit_le(nr, p) \
+ __clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define __test_and_set_bit_le(nr, p) \
+ __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_and_set_bit_le(nr, p) \
+ test_and_set_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define __test_and_clear_bit_le(nr, p) \
+ __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_and_clear_bit_le(nr, p) \
+ test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_bit_le(nr, p) \
+ test_bit(WORD_BITOFF_TO_LE(nr), (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(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))
+ __test_and_set_bit_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))
+ test_and_set_bit_le(nr, (unsigned long *)(p))
#define ext2_clear_bit(nr,p) \
- __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+ __test_and_clear_bit_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))
+ test_and_clear_bit_le(nr, (unsigned long *)(p))
#define ext2_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+ test_bit_le(nr, (unsigned long *)(p))
#define ext2_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+ find_first_zero_bit_le((unsigned long *)(p), sz)
#define ext2_find_next_zero_bit(p,sz,off) \
- _find_next_zero_bit_le(p,sz,off)
+ find_next_zero_bit_le((unsigned long *)(p), sz, off)
#define ext2_find_next_bit(p, sz, off) \
- _find_next_bit_le(p, sz, off)
+ find_next_bit_le((unsigned long *)(p), sz, off)
/*
* 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))
+ __set_bit_le(nr, (unsigned long *)(p))
#define minix_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+ test_bit_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))
+ __test_and_set_bit_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))
+ __test_and_clear_bit_le(nr, (unsigned long *)(p))
#define minix_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+ find_first_zero_bit_le((unsigned long *)(p), sz)
#endif /* __KERNEL__ */
--
1.7.3.4
next prev parent reply other threads:[~2011-01-16 13:08 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-16 13:08 [PATCH v4 00/24] Introduce little endian bitops Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 01/24] bitops: merge little and big endian definisions in asm-generic/bitops/le.h Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 02/24] asm-generic: rename generic little-endian bitops functions Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 03/24] powerpc: introduce little-endian bitops Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 04/24] s390: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita [this message]
2011-01-16 17:51 ` [PATCH v4 05/24] arm: " Russell King
2011-01-16 17:51 ` Russell King
2011-01-17 2:36 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 06/24] m68k: " Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 07/24] bitops: introduce CONFIG_GENERIC_FIND_BIT_LE Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 08/24] m68knommu: introduce little-endian bitops Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 09/24] bitops: introduce little-endian bitops for most architectures Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 21:18 ` H. Peter Anvin
2011-01-17 10:01 ` Hans-Christian Egtvedt
2011-01-17 10:01 ` Hans-Christian Egtvedt
2011-01-16 13:08 ` [PATCH v4 10/24] rds: stop including asm-generic/bitops/le.h Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 11/24] kvm: " Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 12/24] asm-generic: use little-endian bitops Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 13/24] ext3: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 14/24] ext4: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 15/24] ocfs2: " Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 16/24] nilfs2: " Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 17/24] reiserfs: " Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 18/24] udf: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 19/24] ufs: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 20/24] md: use little-endian bit operations Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 21/24] dm: " Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 22/24] bitops: remove ext2 non-atomic bitops from asm/bitops.h Akinobu Mita
2011-01-16 13:08 ` Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 23/24] m68k: remove inline asm from minix_find_first_zero_bit Akinobu Mita
2011-01-16 13:08 ` [PATCH v4 24/24] bitops: remove minix bitops from asm/bitops.h Akinobu Mita
2011-01-16 18:57 ` [PATCH v4 00/24] Introduce little endian bitops Linus Torvalds
2011-01-16 18:57 ` Linus Torvalds
2011-01-17 2:37 ` Akinobu Mita
2011-01-17 2:50 ` Linus Torvalds
2011-01-17 9:34 ` Russell King
2011-01-17 9:34 ` Russell King
2011-01-18 9:49 ` Akinobu Mita
2011-01-18 9:49 ` Akinobu Mita
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