!3795 [sync] PR-3771: ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super()

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/3771 
 
PR sync from: Baokun Li <libaokun1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/XIBX4YXCDF6ZRAMJTLFTVJJEWZMMDKIB/ 
 
https://gitee.com/openeuler/kernel/issues/I8TM21 
 
Link:https://gitee.com/openeuler/kernel/pulls/3795

 

Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>