linux-kernel - [PATCH] timekeeping: Convert to use time

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Message-Id: <20230705141626.461-1-11162513@vivo.com>
Date:   Wed,  5 Jul 2023 22:16:26 +0800
From:   Zehao Zhang <11162513@...o.com>
To:     jstultz@...gle.com, tglx@...utronix.de, sboyd@...nel.org
Cc:     linux-kernel@...r.kernel.org, Zehao Zhang <zhangzehao@...o.com>
Subject: [PATCH] timekeeping: Convert to use time_after macro

From: Zehao Zhang <zhangzehao@...o.com>

Use time after macro instead of open it for readability.

Signed-off-by: Zehao Zhang <zhangzehao@...o.com>
---
 kernel/time/timekeeping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 266d02809dbb..b57bcb9b4ead 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -217,7 +217,7 @@ static void timekeeping_check_update(struct timekeeper *tk, u64 offset)
 	}
 
 	if (tk->underflow_seen) {
-		if (jiffies - tk->last_warning > WARNING_FREQ) {
+		if (time_after(jiffies, tk->last_warning + WARNING_FREQ)) {
 			printk_deferred("WARNING: Underflow in clocksource '%s' observed, time update ignored.\n", name);
 			printk_deferred("         Please report this, consider using a different clocksource, if possible.\n");
 			printk_deferred("         Your kernel is probably still fine.\n");
@@ -227,7 +227,7 @@ static void timekeeping_check_update(struct timekeeper *tk, u64 offset)
 	}
 
 	if (tk->overflow_seen) {
-		if (jiffies - tk->last_warning > WARNING_FREQ) {
+		if (time_after(jiffies, tk->last_warning + WARNING_FREQ)) {
 			printk_deferred("WARNING: Overflow in clocksource '%s' observed, time update capped.\n", name);
 			printk_deferred("         Please report this, consider using a different clocksource, if possible.\n");
 			printk_deferred("         Your kernel is probably still fine.\n");
-- 
2.35.3