diff options
Diffstat (limited to 'drivers/md/dm-snap.c')
| -rw-r--r-- | drivers/md/dm-snap.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index cee16fadd9ee..fad84654b045 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -334,16 +334,6 @@ static int calc_max_buckets(void) } /* - * Rounds a number down to a power of 2. - */ -static uint32_t round_down(uint32_t n) -{ - while (n & (n - 1)) - n &= (n - 1); - return n; -} - -/* * Allocate room for a suitable hash table. */ static int init_hash_tables(struct dm_snapshot *s) @@ -361,8 +351,7 @@ static int init_hash_tables(struct dm_snapshot *s) hash_size = min(origin_dev_size, cow_dev_size) >> s->chunk_shift; hash_size = min(hash_size, max_buckets); - /* Round it down to a power of 2 */ - hash_size = round_down(hash_size); + hash_size = rounddown_pow_of_two(hash_size); if (init_exception_table(&s->complete, hash_size)) return -ENOMEM; |