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H A D | tcp.c | 99dc2640 Tue Jul 11 04:40:40 CDT 2023 Ming Lei <ming.lei@redhat.com> nvme-tcp: fix potential unbalanced freeze & unfreeze
Move start_freeze into nvme_tcp_configure_io_queues(), and there is at least two benefits:
1) fix unbalanced freeze and unfreeze, since re-connection work may fail or be broken by removal
2) IO during error recovery can be failfast quickly because nvme fabrics unquiesces queues after teardown.
One side-effect is that !mpath request may timeout during connecting because of queue topo change, but that looks not one big deal:
1) same problem exists with current code base
2) compared with !mpath, mpath use case is dominant
Fixes: 2875b0aecabe ("nvme-tcp: fix controller reset hang during traffic") Cc: stable@vger.kernel.org Signed-off-by: Ming Lei <ming.lei@redhat.com> Tested-by: Yi Zhang <yi.zhang@redhat.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <kbusch@kernel.org>
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