linux-kernel - [PATCH 2/3] md: remove redundant check in fix_read

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Message-Id: <20230623173236.2513554-3-linan666@huaweicloud.com>
Date:   Sat, 24 Jun 2023 01:32:35 +0800
From:   linan666@...weicloud.com
To:     song@...nel.org
Cc:     linux-raid@...r.kernel.org, linux-kernel@...r.kernel.org,
        linan122@...wei.com, yukuai3@...wei.com, yi.zhang@...wei.com,
        houtao1@...wei.com, yangerkun@...wei.com
Subject: [PATCH 2/3] md: remove redundant check in fix_read_error()

From: Li Nan <linan122@...wei.com>

In fix_read_error(), 'success' will be checked immediately after assigning
it, if it is set to 1 then the loop will break. Checking it again in
condition of loop is redundant. Clean it up.

Signed-off-by: Li Nan <linan122@...wei.com>
---
 drivers/md/raid1.c  | 2 +-
 drivers/md/raid10.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 3570da63969b..0391c2d0c109 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2318,7 +2318,7 @@ static void fix_read_error(struct r1conf *conf, int read_disk,
 			d++;
 			if (d == conf->raid_disks * 2)
 				d = 0;
-		} while (!success && d != read_disk);
+		} while (d != read_disk);
 
 		if (!success) {
 			/* Cannot read from anywhere - mark it bad */
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 94ae294c8a3c..a36e53fce21f 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2790,7 +2790,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10
 			sl++;
 			if (sl == conf->copies)
 				sl = 0;
-		} while (!success && sl != slot);
+		} while (sl != slot);
 		rcu_read_unlock();
 
 		if (!success) {
-- 
2.39.2