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Subject[PATCH v2 1/2] reiserfs: use proper little-endian bitops
Date
Using __test_and_{set,clear}_bit_le() with ignoring its return value
can be replaced with __{set,clear}_bit_le().

This introduces reiserfs_{set,clear}_le_bit for __{set,clear}_bit_le
and does the above change with them.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: reiserfs-devel@vger.kernel.org
---
v2: rewritten to keep reiserfs_*_le_bit() macros

fs/reiserfs/bitmap.c | 2 +-
fs/reiserfs/resize.c | 6 +++---
include/linux/reiserfs_fs.h | 2 ++
3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index 483442e..567385a 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -214,7 +214,7 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
}
/* otherwise we clear all bit were set ... */
while (--i >= *beg)
- reiserfs_test_and_clear_le_bit
+ reiserfs_clear_le_bit
(i, bh->b_data);
reiserfs_restore_prepared_buffer(s, bh);
*beg = org;
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
index b3a94d2..b6b9b1f 100644
--- a/fs/reiserfs/resize.c
+++ b/fs/reiserfs/resize.c
@@ -136,7 +136,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
return -EIO;
}
memset(bh->b_data, 0, sb_blocksize(sb));
- reiserfs_test_and_set_le_bit(0, bh->b_data);
+ reiserfs_set_le_bit(0, bh->b_data);
reiserfs_cache_bitmap_metadata(s, bh, bitmap + i);

set_buffer_uptodate(bh);
@@ -172,7 +172,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)

reiserfs_prepare_for_journal(s, bh, 1);
for (i = block_r; i < s->s_blocksize * 8; i++)
- reiserfs_test_and_clear_le_bit(i, bh->b_data);
+ reiserfs_clear_le_bit(i, bh->b_data);
info->free_count += s->s_blocksize * 8 - block_r;

journal_mark_dirty(&th, s, bh);
@@ -190,7 +190,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)

reiserfs_prepare_for_journal(s, bh, 1);
for (i = block_r_new; i < s->s_blocksize * 8; i++)
- reiserfs_test_and_set_le_bit(i, bh->b_data);
+ reiserfs_set_le_bit(i, bh->b_data);
journal_mark_dirty(&th, s, bh);
brelse(bh);

diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index eca75df..96d465f 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2332,7 +2332,9 @@ __u32 keyed_hash(const signed char *msg, int len);
__u32 yura_hash(const signed char *msg, int len);
__u32 r5_hash(const signed char *msg, int len);

+#define reiserfs_set_le_bit __set_bit_le
#define reiserfs_test_and_set_le_bit __test_and_set_bit_le
+#define reiserfs_clear_le_bit __clear_bit_le
#define reiserfs_test_and_clear_le_bit __test_and_clear_bit_le
#define reiserfs_test_le_bit test_bit_le
#define reiserfs_find_next_zero_le_bit find_next_zero_bit_le
--
1.7.4.4


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