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245595e83f
Most kernel interfaces that take a timespec require normalized representation with tv_nsec between 0 and NSEC_PER_SEC. Passing values larger than 0x100000000ull further behaves differently on 32-bit and 64-bit kernels, and can cause the latter to spend a long time counting seconds in timespec64_sub()/set_normalized_timespec64(). Reject those large values at the user interface to enforce sane and portable behavior. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.