linux-kernel - [PATCH] md/raid10: clean up md_add_new

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Message-Id: <20230527101851.3266500-2-linan666@huaweicloud.com>
Date:   Sat, 27 May 2023 18:18:51 +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] md/raid10: clean up md_add_new_disk()

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

Commit 1a855a060665 ("md: fix bug with re-adding of partially recovered
device.") only add device which is set to In_sync. But it let devices
without metadata cannot be added when they should be.

Commit bf572541ab44 ("md: fix regression with re-adding devices to arrays
with no metadata") fix the above issue, it set device without metadata to
In_sync when add new disk.

However, after commit f466722ca614 ("md: Change handling of save_raid_disk
and metadata update during recovery.") deletes changes of the first patch,
setting In_sync for devcie without metadata is meanless because the flag
will be cleared soon and will not be used during this period. Clean it up.

Signed-off-by: Li Nan <linan122@...wei.com>
---
 drivers/md/md.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 8e344b4b3444..e5b67b2d2166 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6733,7 +6733,6 @@ int md_add_new_disk(struct mddev *mddev, struct mdu_disk_info_s *info)
 			if (info->state & (1<<MD_DISK_SYNC)  &&
 			    info->raid_disk < mddev->raid_disks) {
 				rdev->raid_disk = info->raid_disk;
-				set_bit(In_sync, &rdev->flags);
 				clear_bit(Bitmap_sync, &rdev->flags);
 			} else
 				rdev->raid_disk = -1;
-- 
2.31.1