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nvme-core: use list_add_tail_rcu instead of list_add_tail for nvme_init_ns_head 

The "list" of nvme_ns_head is used as rcu list, now in nvme_init_ns_head
list_add_tail is used to add ns->siblings to the rcu list. It is not safe.
Should use list_add_tail_rcu instead of list_add_tail.

Signed-off-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
master
Chao Leng 2021-01-28 11:33:51 +08:00 committed by Christoph Hellwig
parent d1bcf006a9
commit 772ea326a4
1 changed files with 1 additions and 1 deletions
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2
drivers/nvme/host/core.c
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@ -3829,7 +3829,7 @@ static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
}
}
list_add_tail(&ns->siblings, &head->list);
list_add_tail_rcu(&ns->siblings, &head->list);
ns->head = head;
mutex_unlock(&ctrl->subsys->lock);
return 0;