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When the TSC is marked reliable then the synchronization check is skipped, but that also skips the TSC ADJUST sanitizing code. So on a machine with a wreckaged BIOS the TSC deviation between CPUs might go unnoticed. Let the TSC adjust sanitizing code run unconditionally and just skip the expensive synchronization checks when TSC is marked reliable. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Olof Johansson <olof@lixom.net> Link: http://lkml.kernel.org/r/20170209151231.491189912@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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.