[PATCH -next 15/29] md/raid5: use new apis to suspend array for raid5_store_group_thread_cnt()

From: Yu Kuai
Date: Thu Aug 03 2023 - 09:34:49 EST


From: Yu Kuai <yukuai3@xxxxxxxxxx>

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@xxxxxxxxxx>
---
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