linux-kernel - [PATCH] xen/blkback: Convert to use time_after

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Message-Id: <20230706091613.40136-1-zhangzehao@vivo.com>
Date:   Thu,  6 Jul 2023 17:16:13 +0800
From:   Zehao Zhang <zhangzehao@...o.com>
To:     roger.pau@...rix.com, axboe@...nel.dk
Cc:     xen-devel@...ts.xenproject.org, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, Zehao Zhang <zhangzehao@...o.com>
Subject: [PATCH] xen/blkback: Convert to use time_after_eq macro

Use time_after_eq macro instead of opening it for readability.

Signed-off-by: Zehao Zhang <zhangzehao@...o.com>
---
 drivers/block/xen-blkback/blkback.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index c362f4ad80ab..77b1b1785eb3 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -42,6 +42,7 @@
 #include <linux/delay.h>
 #include <linux/freezer.h>
 #include <linux/bitmap.h>
+#include <linux/jiffies.h>
 
 #include <xen/events.h>
 #include <xen/page.h>
@@ -134,8 +135,8 @@ module_param(log_stats, int, 0644);
 
 static inline bool persistent_gnt_timeout(struct persistent_gnt *persistent_gnt)
 {
-	return pgrant_timeout && (jiffies - persistent_gnt->last_used >=
-			HZ * pgrant_timeout);
+	return pgrant_timeout && (time_after_eq(jiffies,
+			persistent_gnt->last_used + HZ * pgrant_timeout));
 }
 
 #define vaddr(page) ((unsigned long)pfn_to_kaddr(page_to_pfn(page)))
-- 
2.35.3