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Another abort race: An io request is started, becomes active, and is attempted to be started with the lldd. At the same time the controller is stopped/torndown and an itterator is run to abort the ios. As the io is active, it is added to the outstanding aborted io count. However on the original io request thread, the driver ends up rejecting the io due to the condition that induced the controller teardown. The driver reject path didn't check whether it was in the outstanding io count. This left the count outstanding stopping controller teardown. Correct by, in the driver reject case, setting the state to inactive and checking whether it was in the outstanding io count. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.