Re: [PATCH 0/3 rfc] Fix nvme-tcp and nvme-rdma controller reset hangs
From: Christoph Hellwig <hch@lst.de>
Date: 2021-03-22 06:34:53
On Sat, Mar 20, 2021 at 11:49:35PM -0700, Sagi Grimberg wrote:
quoted
Hmm. I don't think head->srcu is intended to protect the current path. We also call nvme_mpath_clear_current_path from nvme_complete_rq or nvme_ns_remove, which has no locking at all. The srcu protection is for head->list, but leaks into the current path due to the __rcu annotations.OK, care to send a formal patch that I can give a test drive?
I'll write a changelog. But as-is this should be testable. _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme