linux-kernel - [PATCH 19/22] dm: use little endian bit operations

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Message-Id: <1287135981-17604-20-git-send-email-akinobu.mita@gmail.com>
Date:	Fri, 15 Oct 2010 18:46:18 +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>, dm-devel@...hat.com
Subject: [PATCH 19/22] dm: 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: Alasdair Kergon
Cc: dm-devel@...hat.com
---
 drivers/md/dm-log.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 5a08be0..9a61fbc 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -251,20 +251,20 @@ struct log_c {
  */
 static inline int log_test_bit(uint32_t *bs, unsigned bit)
 {
-	return ext2_test_bit(bit, (unsigned long *) bs) ? 1 : 0;
+	return test_le_bit(bit, (unsigned long *) bs) ? 1 : 0;
 }
 
 static inline void log_set_bit(struct log_c *l,
 			       uint32_t *bs, unsigned bit)
 {
-	ext2_set_bit(bit, (unsigned long *) bs);
+	__test_and_set_le_bit(bit, (unsigned long *) bs);
 	l->touched_cleaned = 1;
 }
 
 static inline void log_clear_bit(struct log_c *l,
 				 uint32_t *bs, unsigned bit)
 {
-	ext2_clear_bit(bit, (unsigned long *) bs);
+	__test_and_clear_le_bit(bit, (unsigned long *) bs);
 	l->touched_dirtied = 1;
 }
 
@@ -740,7 +740,7 @@ static int core_get_resync_work(struct dm_dirty_log *log, region_t *region)
 		return 0;
 
 	do {
-		*region = ext2_find_next_zero_bit(
+		*region = find_next_zero_le_bit(
 					     (unsigned long *) lc->sync_bits,
 					     lc->region_count,
 					     lc->sync_search);
-- 
1.7.1.231.gd0b16

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