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Currently, IB/cma remove_one flow blocks until all user descriptor managed by IB/ucma are released. This prevents hot-removal of IB devices. This patch allows IB/cma to remove devices regardless of user space activity. Upon getting the RDMA_CM_EVENT_DEVICE_REMOVAL event we close all the underlying HW resources for the given ucontext. The ucontext itself is still alive till its explicit destroying by its creator. Running applications at that time will have some zombie device, further operations may fail. Signed-off-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: Shachar Raindel <raindel@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> |
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