From: Akinobu Mita <akinobu.mita@gmail.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Arnd Bergmann <arnd@arndb.de>,
Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 04/22] arm: introduce little-endian bitops
Date: Thu, 21 Oct 2010 23:40:59 +0900 [thread overview]
Message-ID: <1287672077-5797-5-git-send-email-akinobu.mita@gmail.com> (raw)
In-Reply-To: <1287672077-5797-1-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>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
---
Change from v1: fix argument of test_and_{set,clear}_le_bit()
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..29adaca 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_le_bit(nr, p) \
+ __set_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define __clear_le_bit(nr, p) \
+ __clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define __test_and_set_le_bit(nr, p) \
+ __test_and_set_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_and_set_le_bit(nr, p) \
+ test_and_set_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define __test_and_clear_le_bit(nr, p) \
+ __test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_and_clear_le_bit(nr, p) \
+ test_and_clear_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define test_le_bit(nr, p) \
+ test_bit(WORD_BITOFF_TO_LE(nr), (p))
+#define find_first_zero_le_bit(p, sz) \
+ _find_first_zero_bit_le(p, sz)
+#define find_next_zero_le_bit(p, sz, off) \
+ _find_next_zero_bit_le(p, sz, off)
+#define find_next_le_bit(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_le_bit(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_le_bit(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_le_bit(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_le_bit(nr, (unsigned long *)(p))
#define ext2_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+ test_le_bit(nr, (unsigned long *)(p))
#define ext2_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+ find_first_zero_le_bit((unsigned long *)(p), sz)
#define ext2_find_next_zero_bit(p,sz,off) \
- _find_next_zero_bit_le(p,sz,off)
+ find_next_zero_le_bit((unsigned long *)(p), sz, off)
#define ext2_find_next_bit(p, sz, off) \
- _find_next_bit_le(p, sz, off)
+ find_next_le_bit((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_le_bit(nr, (unsigned long *)(p))
#define minix_test_bit(nr,p) \
- test_bit(WORD_BITOFF_TO_LE(nr), (unsigned long *)(p))
+ test_le_bit(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_le_bit(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_le_bit(nr, (unsigned long *)(p))
#define minix_find_first_zero_bit(p,sz) \
- _find_first_zero_bit_le(p,sz)
+ find_first_zero_le_bit((unsigned long *)(p), sz)
#endif /* __KERNEL__ */
--
1.7.1.231.gd0b16
next prev parent reply other threads:[~2010-10-21 14:40 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1287672077-5797-1-git-send-email-akinobu.mita@gmail.com>
2010-10-21 14:40 ` [PATCH v2 01/22] bitops: merge little and big endian definisions in asm-generic/bitops/le.h Akinobu Mita
2010-10-21 15:06 ` Arnd Bergmann
2010-10-21 14:40 ` [PATCH v2 02/22] bitops: rename generic little-endian bitops functions Akinobu Mita
2010-10-21 14:40 ` Akinobu Mita
2010-10-21 15:07 ` Arnd Bergmann
2010-10-31 14:02 ` Hans-Christian Egtvedt
2010-10-31 14:02 ` Hans-Christian Egtvedt
2010-10-21 14:40 ` [PATCH v2 03/22] s390: introduce little-endian bitops Akinobu Mita
2010-10-21 14:40 ` Akinobu Mita
2010-10-21 15:08 ` Arnd Bergmann
2010-10-21 15:08 ` Arnd Bergmann
2010-10-21 14:40 ` Akinobu Mita [this message]
2010-10-21 14:40 ` [PATCH v2 04/22] arm: " Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 05/22] m68k: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 06/22] m68knommu: " Akinobu Mita
2010-10-22 5:47 ` Greg Ungerer
2010-10-22 5:47 ` Greg Ungerer
2010-10-21 14:41 ` [PATCH v2 07/22] bitops: introduce little-endian bitops for most architectures Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 08/22] rds: stop including asm-generic/bitops/le.h Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 09/22] kvm: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 10/22] asm-generic: use little-endian bitops Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 11/22] ext3: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 12/22] ext4: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 13/22] ocfs2: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 14/22] nilfs2: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 15/22] reiserfs: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 16/22] udf: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 17/22] ufs: " Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 18/22] md: use little-endian bit operations Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 19/22] dm: " Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 20/22] bitops: remove ext2 non-atomic bitops from asm/bitops.h Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 17:52 ` Andreas Dilger
2010-10-21 17:52 ` Andreas Dilger
2010-10-22 7:56 ` Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 21/22] m68k: remove inline asm from minix_find_first_zero_bit Akinobu Mita
2010-10-21 14:41 ` [PATCH v2 22/22] bitops: remove minix bitops from asm/bitops.h Akinobu Mita
2010-10-21 14:41 ` Akinobu Mita
2010-10-21 15:10 ` Arnd Bergmann
2010-10-21 15:10 ` Arnd Bergmann
2010-10-21 23:19 ` Michal Simek
2010-10-21 23:19 ` Michal Simek
2010-10-22 7:55 ` Akinobu Mita
2010-10-22 7:55 ` Akinobu Mita
2010-10-24 23:31 ` [microblaze-uclinux] " Michal Simek
2010-10-25 13:31 ` Arnd Bergmann
2010-10-25 13:31 ` Arnd Bergmann
2010-10-22 5:40 ` Greg Ungerer
2010-10-22 5:40 ` Greg Ungerer
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