linux-kernel - [PATCH] md: use time_after_eq() instead of jiffies judgment

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Message-Id: <1644481874-14812-1-git-send-email-wangqing@vivo.com>
Date:   Thu, 10 Feb 2022 00:31:14 -0800
From:   Qing Wang <wangqing@...o.com>
To:     Alasdair Kergon <agk@...hat.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] md: use time_after_eq() instead of jiffies judgment

From: Wang Qing <wangqing@...o.com>

It is better to use time_xxx() directly instead of jiffies judgment
for understanding.

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/md/dm-thin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index f4234d6..dced764
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -161,7 +161,7 @@ static void throttle_work_start(struct throttle *t)
 
 static void throttle_work_update(struct throttle *t)
 {
-	if (!t->throttle_applied && jiffies > t->threshold) {
+	if (!t->throttle_applied && time_after(jiffies, t->threshold)) {
 		down_write(&t->lock);
 		t->throttle_applied = true;
 	}
-- 
2.7.4