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79dc9c9e86
This patch changes __core_scsi3_do_alloc_registration() code to drop pr_reg->pr_reg_tg_pt_lun pointer usage in favor of a new pr_reg RPTI + existing pr_reg->pr_aptpl_target_lun used by APTPL metadata logic. It also includes changes to REGISTER, REGISTER_AND_MOVE and APTPL feature bit codepaths to use rcu_dereference_check() with the expected non-zero se_dev_entry->pr_kref reference held. Reviewed-by: Hannes Reinecke <hare@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>