linux-kernel - [PATCH 18/22] md: use little endian bit operations

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Date:	Fri, 15 Oct 2010 18:46:17 +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>, Neil Brown <neilb@...e.de>,
	linux-raid@...r.kernel.org
Subject: [PATCH 18/22] md: use little endian bit operations

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: Neil Brown <neilb@...e.de>
Cc: linux-raid@...r.kernel.org
---
 drivers/md/bitmap.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index e4fb58d..2a37051 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -850,7 +850,7 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
 			set_bit(bit, kaddr);
 		else
-			ext2_set_bit(bit, kaddr);
+			__test_and_set_le_bit(bit, kaddr);
 		kunmap_atomic(kaddr, KM_USER0);
 		PRINTK("set file bit %lu page %lu\n", bit, page->index);
 	}
@@ -1046,7 +1046,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
 		if (bitmap->flags & BITMAP_HOSTENDIAN)
 			b = test_bit(bit, paddr);
 		else
-			b = ext2_test_bit(bit, paddr);
+			b = test_le_bit(bit, paddr);
 		kunmap_atomic(paddr, KM_USER0);
 		if (b) {
 			/* if the disk bit is set, set the memory bit */
@@ -1222,7 +1222,7 @@ void bitmap_daemon_work(mddev_t *mddev)
 						clear_bit(file_page_offset(bitmap, j),
 							  paddr);
 					else
-						ext2_clear_bit(file_page_offset(bitmap, j),
+						__test_and_clear_le_bit(file_page_offset(bitmap, j),
 							       paddr);
 					kunmap_atomic(paddr, KM_USER0);
 				} else
-- 
1.7.1.231.gd0b16

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