Thread (32 messages) 32 messages, 2 authors, 2023-08-22
STALE1032d
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[PATCH -next 15/29] md/raid5: use new apis to suspend array for raid5_store_group_thread_cnt()

From: Yu Kuai <hidden>
Date: 2023-08-03 13:34:51
Also in: lkml
Subsystem: software raid (multiple disks) support, the rest · Maintainers: Song Liu, Yu Kuai, Linus Torvalds

From: Yu Kuai <redacted>

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 <redacted>
---
 drivers/md/raid5.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b8dd23357430..11fcaa1f7de5 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -7221,15 +7221,13 @@ raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 	if (new > 8192)
 		return -EINVAL;
 
-	err = mddev_lock(mddev);
+	err = mddev_suspend_and_lock(mddev);
 	if (err)
 		return err;
 	conf = mddev->private;
 	if (!conf)
 		err = -ENODEV;
 	else if (new != conf->worker_cnt_per_group) {
-		mddev_suspend(mddev);
-
 		old_groups = conf->worker_groups;
 		if (old_groups)
 			flush_workqueue(raid5_wq);
@@ -7246,9 +7244,8 @@ raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 				kfree(old_groups[0].workers);
 			kfree(old_groups);
 		}
-		mddev_resume(mddev);
 	}
-	mddev_unlock(mddev);
+	mddev_unlock_and_resume(mddev);
 
 	return err ?: len;
 }
-- 
2.39.2
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