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d8f7750a08
When configuring a device attached listener, we may see device removal events. In this case we return a non-zero return code from the cm event handler which implicitly destroys the cm_id. It is possible that in the future the user will remove this listener and by that trigger a second call to rdma_destroy_id on an already destroyed cm_id -> BUG. In addition, when a queue bound (active session) cm_id generates a DEVICE_REMOVAL event we must guarantee all resources are cleaned up by the time we return from the event handler. Introduce nvmet_rdma_device_removal which addresses (or at least attempts to) both scenarios. Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> |
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