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nvme_update_formats will invoke nvme_ns_remove under namespaces_mutext. The will cause deadlock because nvme_ns_remove will also require the namespaces_mutext. Fix it by getting the ns entries which should be removed under namespaces_mutext and invoke nvme_ns_remove out of namespaces_mutext. Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.