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Theoretically, the largest bulk of commands in the ring buffer of an engine might be the first submission, which usually contains a lot of commands to initialize the HW. After removing the initial allocation of the ring scan buffer and let krealloc() do everything we need, we still have a big chance to get the buffer of suitable size in the first submission. Tested on my SKL NUC. Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
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.