linux-kernel - [PATCH -next v2 13/28] md/raid5: use new apis to suspend array for raid5_store_stripe

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Message-Id: <20230828020021.2489641-14-yukuai1@huaweicloud.com>
Date:   Mon, 28 Aug 2023 10:00:06 +0800
From:   Yu Kuai <yukuai1@...weicloud.com>
To:     agk@...hat.com, snitzer@...nel.org, dm-devel@...hat.com,
        song@...nel.org, xni@...hat.com
Cc:     linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
        yukuai3@...wei.com, yukuai1@...weicloud.com, yi.zhang@...wei.com,
        yangerkun@...wei.com
Subject: [PATCH -next v2 13/28] md/raid5: use new apis to suspend array for raid5_store_stripe_size()

From: Yu Kuai <yukuai3@...wei.com>

Convert to use new apis, the old apis will be removed eventually.

This is not hot path, so performance is not concerned.

Signed-off-by: Yu Kuai <yukuai3@...wei.com>
---
 drivers/md/raid5.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 6383723468e5..f1c32b4d190f 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -7025,7 +7025,7 @@ raid5_store_stripe_size(struct mddev  *mddev, const char *page, size_t len)
 			new != roundup_pow_of_two(new))
 		return -EINVAL;
 
-	err = mddev_lock(mddev);
+	err = mddev_suspend_and_lock(mddev);
 	if (err)
 		return err;
 
@@ -7049,7 +7049,6 @@ raid5_store_stripe_size(struct mddev  *mddev, const char *page, size_t len)
 		goto out_unlock;
 	}
 
-	mddev_suspend(mddev);
 	mutex_lock(&conf->cache_size_mutex);
 	size = conf->max_nr_stripes;
 
@@ -7064,10 +7063,9 @@ raid5_store_stripe_size(struct mddev  *mddev, const char *page, size_t len)
 		err = -ENOMEM;
 	}
 	mutex_unlock(&conf->cache_size_mutex);
-	mddev_resume(mddev);
 
 out_unlock:
-	mddev_unlock(mddev);
+	mddev_unlock_and_resume(mddev);
 	return err ?: len;
 }
 
-- 
2.39.2