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The io completion handling for i/o's that are failing due to to a transport error or association termination had issues, causing io failures (DNR set so retries didn't kick in) or long stalls. Change the io completion handler for the following items: When an io has been completed due to a transport abort (based on an exchange error) or when marked as aborted as part of an association termination (FCOP_FLAGS_TERMIO), set the NVME completion status to NVME_SC_ABORTED. By default, do not set DNR on the status so that a retry can be attempted after association recreate. In cases where an io is failed (non-successful nvme status including aborted), if the controller is being deleted (blk_queue_dying) or the io was part of the ios used for association creation (ctrl state is NEW or RECONNECTING), then additionally set the DNR bit so the io will not be retried. If the failed io was part of association creation, the failure will tear down the partially completioned association and typically restart a new reconnect attempt (another create association later). Rearranged code flow to remove a largely unneeded local variable. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> |
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| firmware | ||
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| kernel | ||
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| .cocciconfig | ||
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| README | ||
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.