linux-kernel - [PATCH v4 15/24] ocfs2: use little-endian bitops

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Message-Id: <1295183333-13802-16-git-send-email-akinobu.mita@gmail.com>
Date:	Sun, 16 Jan 2011 22:08:44 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	akpm@...ux-foundation.org
Cc:	Akinobu Mita <akinobu.mita@...il.com>,
	Mark Fasheh <mfasheh@...e.com>,
	Joel Becker <joel.becker@...cle.com>
Subject: [PATCH v4 15/24] 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>
Acked-by: Joel Becker <joel.becker@...cle.com>
Cc: Mark Fasheh <mfasheh@...e.com>
Signed-off-by: Andrew Morton <akpm@...ux-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

 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 51cd689..5c31fb9 100644
--- a/fs/ocfs2/ocfs2.h
+++ b/fs/ocfs2/ocfs2.h
@@ -831,18 +831,21 @@ 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_bit_le(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_bit_le(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_bit_le(nr, (unsigned long *)(addr))
+#define ocfs2_find_next_zero_bit(addr, size, off)	\
+	find_next_zero_bit_le((unsigned long *)(addr), size, off)
+#define ocfs2_find_next_bit(addr, size, off)	\
+	find_next_bit_le((unsigned long *)(addr), size, off)
 #endif  /* OCFS2_H */
 
-- 
1.7.3.4

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