Commit 24fc755f authored by Chengguang Xu's avatar Chengguang Xu Committed by Jan Kara
Browse files

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: default avatarChengguang Xu <cgxu519@zoho.com.cn>
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 05848db2

fs/quota/dquot.c

+1 −5
Original line number Diff line number Diff line
@@ -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;