Keith Busch 2079699c10 nvme: Skip checking heads without namespaces ... If a task is holding a reference to a namespace on a removed controller, the head will not be released. If the same controller is added again later, its namespaces may not be successfully added. Instead, the user will see kernel message "Duplicate IDs for nsid <X>". This patch fixes that by skipping heads that don't have namespaces when considering if a new namespace is safe to add. Reported-by: Alex Gagniuc <Alex_Gagniuc@Dellteam.com> Cc: stable@vger.kernel.org Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2018-03-26 08:53:43 -06:00
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host	nvme: Skip checking heads without namespaces	2018-03-26 08:53:43 -06:00
target	nvmet-rdma: Don't flush system_wq by default during remove_one	2018-03-26 08:53:43 -06:00
Kconfig	nvme: use menu Kconfig interface	2017-10-04 09:43:57 +02:00
Makefile	nvmet: add a generic NVMe target	2016-07-05 11:30:33 -06:00