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printk timestamps will be extended to include mono and boot time by using the fast timekeeping accessors ktime_get_mono|boot_fast_ns(). The functions can return garbage before timekeeping is initialized resulting in garbage timestamps. Initialize the fast timekeepers with dummy clocks which guarantee a 0 readout up to timekeeping_init(). Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Stephen Boyd <sboyd@codeaurora.org> Cc: John Stultz <john.stultz@linaro.org> Link: http://lkml.kernel.org/r/1503922914-10660-2-git-send-email-prarit@redhat.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.