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All controller namespaces share the same tagset, so we can use this interface which does the optimal operation for parallel quiesce based on the tagset type(e.g. blocking tagsets and non-blocking tagsets). nvme connect_q should not be quiesced when quiesce tagset, so set the QUEUE_FLAG_SKIP_TAGSET_QUIESCE to skip it when init connect_q. Currently we use NVME_NS_STOPPED to ensure pairing quiescing and unquiescing. If use blk_mq_[un]quiesce_tagset, NVME_NS_STOPPED will be invalided, so introduce NVME_CTRL_STOPPED to replace NVME_NS_STOPPED. In addition, we never really quiesce a single namespace. It is a better choice to move the flag from ns to ctrl. Signed-off-by: Chao Leng <lengchao@huawei.com> [hch: rebased on top of prep patches] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Chao Leng <lengchao@huawei.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Link: https://lore.kernel.org/r/20221101150050.3510-15-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk> |
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