Nicolas Pitre
e795000e75
The current implementation forces a compile-time 1/0 division, which generates an undefined instruction (ud2 on x86) rather than a proper runtime division-by-zero exception. Change to trigger an actual div-by-0 exception at runtime, consistent with other division operations. Use a non-1 dividend to prevent the compiler from optimizing the division into a comparison. Link: https://lkml.kernel.org/r/q246p466-1453-qon9-29so-37105116009q@onlyvoer.pbz Signed-off-by: Nicolas Pitre <npitre@baylibre.com> Cc: Biju Das <biju.das.jz@bp.renesas.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Weißschuh <linux@weissschuh.net> Cc: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Cc: David Laight <david.laight.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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 reStructuredText 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.