Received-SPF: pass (google.com: domain of linux-kernel+bounces-116463-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.48.161 as permitted sender) client-ip=147.75.48.161;
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Jan Kara <jack@suse.com>, Dennis Zhou <dennis@kernel.org>
CC: <linux-kernel@vger.kernel.org>, Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH] fs: quota: use group allocation of per-cpu counters API
Date: Mon, 25 Mar 2024 12:12:40 +0800
Message-ID: <20240325041240.53537-1-wangkefeng.wang@huawei.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain

Use group allocation of per-cpu counters api to accelerate
dquot_init() and simplify code.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 fs/quota/dquot.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index dacbee455c03..808544f74e5e 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -3016,11 +3016,10 @@ static int __init dquot_init(void)
 	if (!dquot_hash)
 		panic("Cannot create dquot hash table");
 
-	for (i = 0; i < _DQST_DQSTAT_LAST; i++) {
-		ret = percpu_counter_init(&dqstats.counter[i], 0, GFP_KERNEL);
-		if (ret)
-			panic("Cannot create dquot stat counters");
-	}
+	ret = percpu_counter_init_many(dqstats.counter, 0, GFP_KERNEL,
+				       _DQST_DQSTAT_LAST);
+	if (ret)
+		panic("Cannot create dquot stat counters");
 
 	/* Find power-of-two hlist_heads which can fit into allocation */
 	nr_hash = (1UL << order) * PAGE_SIZE / sizeof(struct hlist_head);
-- 
2.41.0