Jianchao Wang 765cc031cd nvme: change namespaces_mutext to namespaces_rwsem ... namespaces_mutext is used to synchronize the operations on ctrl namespaces list. Most of the time, it is a read operation. On the other hand, there are many interfaces in nvme core that need this lock, such as nvme_wait_freeze, and even more interfaces will be added. If we use mutex here, circular dependency could be introduced easily. For example: context A context B nvme_xxx nvme_xxx hold namespaces_mutext require namespaces_mutext sync context B So it is better to change it from mutex to rwsem. Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@kernel.dk>		2018-03-26 08:53:43 -06:00
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host	nvme: change namespaces_mutext to namespaces_rwsem	2018-03-26 08:53:43 -06:00
target	nvmet: don't return "any" ip address in discovery log page	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