linux-kernel - [PATCH 12/22] ext4: use little endian bitops

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Message-Id: <1287135981-17604-13-git-send-email-akinobu.mita@gmail.com>
Date:	Fri, 15 Oct 2010 18:46:11 +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>,
	"Theodore Ts'o" <tytso@....edu>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org
Subject: [PATCH 12/22] ext4: 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: "Theodore Ts'o" <tytso@....edu>
Cc: Andreas Dilger <adilger.kernel@...ger.ca>
Cc: linux-ext4@...r.kernel.org
---
 fs/ext4/ext4.h |   18 ++++++++++++------
 1 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 889ec9d..821c11a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -895,14 +895,20 @@ struct ext4_inode_info {
 #define test_opt(sb, opt)		(EXT4_SB(sb)->s_mount_opt & \
 					 EXT4_MOUNT_##opt)
 
-#define ext4_set_bit			ext2_set_bit
+#define ext4_set_bit(nr, addr)	\
+	__test_and_set_le_bit((nr), (unsigned long *)(addr))
 #define ext4_set_bit_atomic		ext2_set_bit_atomic
-#define ext4_clear_bit			ext2_clear_bit
+#define ext4_clear_bit(nr, addr)	\
+	__test_and_clear_le_bit((nr), (unsigned long *)(addr))
 #define ext4_clear_bit_atomic		ext2_clear_bit_atomic
-#define ext4_test_bit			ext2_test_bit
-#define ext4_find_first_zero_bit	ext2_find_first_zero_bit
-#define ext4_find_next_zero_bit		ext2_find_next_zero_bit
-#define ext4_find_next_bit		ext2_find_next_bit
+#define ext4_test_bit(nr, addr)	\
+	test_le_bit((nr), (unsigned long *)(addr))
+#define ext4_find_first_zero_bit(addr, size)	\
+	find_first_zero_le_bit((unsigned long *)(addr), (size))
+#define ext4_find_next_zero_bit(addr, size, off)	\
+	find_next_zero_le_bit((unsigned long *)(addr), (size), (off))
+#define ext4_find_next_bit(addr, size, off)	\
+	find_next_le_bit((unsigned long *)(addr), (size), (off))
 
 /*
  * Maximal mount counts between two filesystem checks
-- 
1.7.1.231.gd0b16

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