Code cleanup for hash bits calculation by
calling rounddown_pow_of_two() and ilog2()
Signed-off-by: Chengguang Xu <cgxu...@zoho.com.cn>
---
fs/quota/dquot.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 6e826b454082..679dd3b5db70 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2983,13 +2983,9 @@ static int __init dquot_init(void)
/* Find power-of-two hlist_heads which can fit into allocation */
nr_hash = (1UL << order) * PAGE_SIZE / sizeof(struct hlist_head);
- dq_hash_bits = 0;
- do {
- dq_hash_bits++;
- } while (nr_hash >> dq_hash_bits);
- dq_hash_bits--;
+ nr_hash = rounddown_pow_of_two(nr_hash);
+ dq_hash_bits = ilog2(nr_hash);
- nr_hash = 1UL << dq_hash_bits;
dq_hash_mask = nr_hash - 1;
for (i = 0; i < nr_hash; i++)
INIT_HLIST_HEAD(dquot_hash + i);
--
2.21.0
