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3017013dcc
Now use teardown_lock to serialize for time out and tear down. This may cause abnormal: first cancel all request in tear down, then time out may complete the request again, but the request may already be freed or restarted. To avoid race between time out and tear down, in tear down process, first we quiesce the queue, and then delete the timer and cancel the time out work for the queue. At the same time we need to delete teardown_lock. Signed-off-by: Chao Leng <lengchao@huawei.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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