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SPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_TRACE(0.00)[suse.de:+] X-Spam-Flag: NO On 9/18/26 8:14 PM, Mohamed Khalfella wrote: > DELETING is not reachable from FENCING or FENCED, so during a fencing > window nvme_delete_ctrl() fails with -EBUSY. Its callers assume > deleting a live controller cannot fail: a sysfs disconnect is silently > dropped after the delete_controller node is already gone, rdma device > removal returns with the controller still holding resources on the > outgoing device, and module unload leaks live controllers. > > Fencing is time-bounded and always ends in a state that allows > deletion. Add nvme_delete_ctrl_wait(), which waits on ctrl->state_wq > for the fencing window to end and retries, and use it in the tcp/rdma > module exit paths and rdma device removal. Make nvme_delete_ctrl_sync() > wait the same way so a sysfs disconnect during fencing is delayed > instead of dropped. > > nvme-fc's remoteport unregister with dev_loss_tmo == 0 keeps the > non-waiting call since it runs under rport->lock; it does not need to > wait, as dev_loss_end has already expired and the reconnect path > deletes the controller once fencing completes. > > Signed-off-by: Mohamed Khalfella > --- > drivers/nvme/host/core.c | 41 ++++++++++++++++++++++++++++++++++++++-- > drivers/nvme/host/nvme.h | 1 + > drivers/nvme/host/rdma.c | 4 ++-- > drivers/nvme/host/tcp.c | 2 +- > 4 files changed, 43 insertions(+), 5 deletions(-) > Reviewed-by: Hannes Reinecke Cheers, Hannes -- Dr. Hannes Reinecke Kernel Storage Architect hare@suse.de +49 911 74053 688 SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich