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Subject[PATCH resend 2/6] dm: use 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 also removes unnecessary casts.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: dm-devel@redhat.com
---
drivers/md/dm-log.c | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 948e3f4..2ef7e6e 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 test_bit_le(bit, (unsigned long *) bs) ? 1 : 0;
+ return test_bit_le(bit, bs) ? 1 : 0;
}

static inline void log_set_bit(struct log_c *l,
uint32_t *bs, unsigned bit)
{
- __test_and_set_bit_le(bit, (unsigned long *) bs);
+ __set_bit_le(bit, bs);
l->touched_cleaned = 1;
}

static inline void log_clear_bit(struct log_c *l,
uint32_t *bs, unsigned bit)
{
- __test_and_clear_bit_le(bit, (unsigned long *) bs);
+ __clear_bit_le(bit, bs);
l->touched_dirtied = 1;
}

@@ -739,8 +739,7 @@ static int core_get_resync_work(struct dm_dirty_log *log, region_t *region)
return 0;

do {
- *region = find_next_zero_bit_le(
- (unsigned long *) lc->sync_bits,
+ *region = find_next_zero_bit_le(lc->sync_bits,
lc->region_count,
lc->sync_search);
lc->sync_search = *region + 1;
--
1.7.4.4


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