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In order for the Switchtec NTB code to handle link change events we create a notifier callback in the switchtec code which gets called whenever an appropriate event interrupt occurs. In order to preserve userspace's ability to follow these events, we compare the event count with a stored copy from last time we checked. Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Reviewed-by: Stephen Bates <sbates@raithlin.com> Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
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.