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A mirror of the official Linux kernel repository just in case
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NVMe transport driver module unload may (and usually does) trigger iteration over the active controllers and delete them all (sometimes under a mutex). However, a controller can be created concurrently with module unload which can lead to leakage of resources (most important char device node leakage) in case the controller creation occured after the unload delete and drain sequence. To protect against this, we take a module reference to guarantee that the nvme transport driver is not unloaded while creating a controller. Signed-off-by: Roy Shterman <roys@lightbitslabs.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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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.