linux-kernel - [PATCH 13/22] ocfs2: use little endian bitops

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Date:	Fri, 15 Oct 2010 18:46:12 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <joel.becker@...cle.com>,
	ocfs2-devel@....oracle.com
Subject: [PATCH 13/22] ocfs2: use little endian bitops

As a preparation for removing ext2 non-atomic bit operations from
asm/bitops.h. This converts ext2 non-atomic bit operations to
little endian bit operations.

Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
Cc: Mark Fasheh <mfasheh@...e.com>
Cc: Joel Becker <joel.becker@...cle.com>
Cc: ocfs2-devel@....oracle.com
---
 fs/ocfs2/ocfs2.h |   13 ++++++++-----
 1 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h
index c67003b..24b0cb0 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -787,18 +787,21 @@ static inline unsigned int ocfs2_clusters_to_megabytes(struct super_block *sb,
 
 static inline void _ocfs2_set_bit(unsigned int bit, unsigned long *bitmap)
 {
-	ext2_set_bit(bit, bitmap);
+	__test_and_set_le_bit(bit, bitmap);
 }
 #define ocfs2_set_bit(bit, addr) _ocfs2_set_bit((bit), (unsigned long *)(addr))
 
 static inline void _ocfs2_clear_bit(unsigned int bit, unsigned long *bitmap)
 {
-	ext2_clear_bit(bit, bitmap);
+	__test_and_clear_le_bit(bit, bitmap);
 }
 #define ocfs2_clear_bit(bit, addr) _ocfs2_clear_bit((bit), (unsigned long *)(addr))
 
-#define ocfs2_test_bit ext2_test_bit
-#define ocfs2_find_next_zero_bit ext2_find_next_zero_bit
-#define ocfs2_find_next_bit ext2_find_next_bit
+#define ocfs2_test_bit(nr, addr)	\
+	test_le_bit(nr, (unsigned long *)(addr))
+#define ocfs2_find_next_zero_bit(addr, size, off)	\
+	find_next_zero_le_bit((unsigned long *)(addr), size, off)
+#define ocfs2_find_next_bit(addr, size, off)	\
+	find_next_le_bit((unsigned long *)(addr), size, off)
 #endif  /* OCFS2_H */
 
-- 
1.7.1.231.gd0b16

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