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My original intention was for i915_sw_fence to be the base class and provide the reference count for the container. This was from starting with a design to handle async_work. In practice, for i915 we embed fences into structs which have their own independent reference counting, making the i915_sw_fence.kref duplicitous. If we remove the kref, we remove the i915_sw_fence's ability to free itself and its independence, it can only exist within a container and must be supplied with a callback to handle its release. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170517121007.27224-1-chris@chris-wilson.co.uk
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.