From 24fc755f56b15bf3215c0d0b8b62d7204f369bab Mon Sep 17 00:00:00 2001 From: Chengguang Xu Date: Mon, 23 Sep 2019 21:52:23 +0800 Subject: [PATCH] quota: code cleanup for hash bits calculation Code cleanup for hash bits calculation by calling ilog2(). Link: https://lore.kernel.org/r/20190923135223.27674-1-cgxu519@zoho.com.cn Signed-off-by: Chengguang Xu Signed-off-by: Jan Kara --- fs/quota/dquot.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index 00a3c6df2ea3..26812a67ed77 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -2981,11 +2981,7 @@ 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--; + dq_hash_bits = ilog2(nr_hash); nr_hash = 1UL << dq_hash_bits; dq_hash_mask = nr_hash - 1;